Provided by: libguestfs0_1.40.2-7ubuntu5_amd64 
NAME
guestfs-release-notes - libguestfs Release Notes
RELEASE NOTES FOR LIBGUESTFS 1.40
These release notes only cover the differences from the previous stable/dev branch split
(1.38.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
New features in existing tools
Virt-inspector now displays the libosinfo short ID for guests (Pino Toscano).
Guestfish -N will now generate 1G disks instead of 100M disks by default.
Virt-resize supports f2fs filesystems (Pino Toscano).
libguestfs-test-tool now supports bash tab completion (Pino Toscano).
The --machine-readable option now supports sending output to files or stdout/stderr. This
works uniformly across most OCaml-based virt tools, specifically: virt-builder, virt-
builder-repository, virt-dib, virt-get-kernel, virt-resize, virt-sparsify, and virt-v2v
(Pino Toscano).
Virt-builder --uninstall option now works on SUSE (Sebastian Meyer).
Virt-builder now supports Windows. We are not able to ship Windows templates in the
public respository for obvious licensing reasons, but if you are an MSDN subscriber you
may build your own. See
https://rwmj.wordpress.com/2018/09/13/creating-windows-templates-for-virt-builder/
Many tools now support a --key option allowing you to pass in decryption keys for
filesystems stored in local files on the host rather than having to feed them in over
stdin (Pino Toscano).
virt-v2v and virt-p2v
New -o rhv-upload mode for directly uploading images to RHV, bypassing the Export Storage
Domain (Tomáš Golembiovský, Nir Soffer, Daniel Erez, Pino Toscano).
New -o openstack mode for directly uploading images to OpenStack and Cinder using
OpenStack APIs.
Virt-v2v now has a general mechanism for input and output options: -io and -oo.
Virt-v2v can now install the RHV tools or QEMU GA in guests (Tomáš Golembiovský).
The huge manual has now been split into several smaller documents and is more focused on
helping users to accomplish specific v2v tasks.
Multiple improvements to the OVF metadata when converting to RHV (Tomáš Golembiovský, Pino
Toscano, Arik Hadas).
Virt-v2v can now convert Linux guests with split kernel packages, especially Ubuntu 18.04
(Pino Toscano).
Virt-v2v old --password-file option has been replaced by -ip (the old option remains for
backwards compatibility).
Virt-v2v now preserves the VM Generation ID.
Virt-v2v has a new --mac option allowing specific NICs to be mapped precisely to networks
or bridges on the target.
New virt-v2v --print-estimate option to estimate the size of data that virt-v2v will copy.
Virt-v2v is now usually able to remove open-vm-tools and VMware Tools from the Linux guest
during conversion (Pino Toscano).
Virt-v2v can now support UEFI conversions to RHV (Tomáš Golembiovský).
Virt-p2v now prefers you to shut down instead of rebooting the machine after conversion
has finished (Pino Toscano).
Virt-v2v now writes the libosinfo short ID to the libvirt metadata when using -o local and
-o libvirt output modes (Martin Kletzander).
Language bindings
OpenJDK 10+ is supported (Pino Toscano).
Java bindings fixed for Gentoo host (Martin Kletzander).
Inspection
Support Kali Linux (Pino Toscano).
When inspecting mountpoints, look for /etc/mdadm/mdadm.conf as well as /etc/mdadm.conf
(Nikolay Ivanets).
Improved support for OpenSUSE Tumbleweed (Pino Toscano).
Architectures and platforms
Miscellaneous macOS build fixes (Adam Robinson).
Other
Multiple documentation typos fixed (Yuri Chornoivan).
Security
See also guestfs-security(1).
CVE-2018-11806
Qemu's slirp (userspace networking) had several buffer overflows which could be triggered
from the guest or network side.
API
New APIs
"f2fs_expand"
Expand an f2fs filesystem (Pino Toscano).
"inspect_get_osinfo"
Get the libosinfo short ID for the inspected guest (Pino Toscano).
"lvm_scan"
This rescans all PVs, VGs and LVs, optionally activating them.
Other API changes
"part_get_mbr_part_type" was reimplemented in OCaml (Nikolay Ivanets).
"list_filesystems" now filters out MBR extended partitions (Nikolay Ivanets).
"vgscan" has been deprecated. Use the new "lvm_scan" API in preference.
Build changes
The JSON library switched from yajl to Jansson ≥ 2.7 (Pino Toscano).
Support for The Sleuth Kit 4.5 (Pino Toscano).
Multiple improvements in the "./configure" script (Lin Ma).
More out-of-tree build fixes (Hilko Bengen).
Some work on reproducible builds (Bernhard M. Wiedemann).
Internals
lvmetad is now used unconditionally, and is started much earlier in the appliance boot
process. This fixes support for certain PV types.
On Debian, dash is installed inside the appliance and in virt-rescue (Pino Toscano).
The amount of RAM assigned to the appliance has been increased from 500M to 768M (on
x86_64, other architectures have different limits). This enables use of up to 255 disks
when using recent Linux kernels.
Virt-v2v now models the source machine type (eg. i440FX, Q35 or virt).
Virt-p2v now generates configuration code automatically, also code for parsing the kernel
command line.
Use "LT_INIT" instead of "AC_PROG_LIBTOOL".
The OCaml "JSON" code for parsing and serializing has been unified into a single abstract
data type.
Most OCaml tools are now built using the PIC runtime. This has a performance penalty on
i686, but is relatively free on other architectures and has security benefits.
The direct backend now queries the qemu binary for availability of KVM, instead of using a
heuristic based on /dev/kvm (Andrea Bolognani).
Our "clever" libxml2 writer macros are now used consistently across all parts of the code
base.
Qemu dropped -nodefconfig without telling us. The equivalent -no-user-config option is
now used instead. Qemu also moved the "serial" option from -drive to -device, again
without any notice, and this is also fixed.
Bugs fixed
https://bugzilla.redhat.com/1664310
[RHEL 7.6 LP] openstack output leaks passwords
https://bugzilla.redhat.com/1661038
virt-inspector fails with "error: int_of_string" on a Linux image when /etc/fstab
contains a partionless device
https://bugzilla.redhat.com/1651432
v2v - support for -insecure option to support OSP SSL connection for VM migrations
https://bugzilla.redhat.com/1642044
[RFE] virt-p2v UI should give the option to shutdown after conversion is finished
https://bugzilla.redhat.com/1634248
virt-v2v cannot convert opensuse15 guest
https://bugzilla.redhat.com/1624902
Fix rhev-apt command that virt-v2v runs in Windows guests on first boot
https://bugzilla.redhat.com/1624878
Update v2v docs to describe support for SHA 2 certs required for converting Windows 7
and 2008 R2 guests
https://bugzilla.redhat.com/1615885
Minor log issue of virt-v2v
https://bugzilla.redhat.com/1614276
VixDiskLib: VixDiskLib_Read: Read 4096 sectors at 57516160 failed. Error 2 (Memory
allocation failed. Out of memory.) (DiskLib error 802: NBD_ERR_INSUFFICIENT_RESOURCES)
at 5240.
https://bugzilla.redhat.com/1612785
"warning: <target dev='sr0'> was ignored because the device name could not be
recognized" should be hidden since convert cdrom is supported by virt-v2v
https://bugzilla.redhat.com/1611690
part_to_dev "/dev/sdp1" returns "/dev/sd" instead of "/dev/sdp"
https://bugzilla.redhat.com/1608131
inspection fails when swap partition in /etc/fstab has incorrect UUID compared to
actual swap partition
https://bugzilla.redhat.com/1605071
On machines where /dev/kvm exists but KVM doesn't work, libguestfs will not fall back
to TCG
https://bugzilla.redhat.com/1602353
virt-inspector can't inspect LUKS-encrypted RHEL7 guest image
https://bugzilla.redhat.com/1601943
Improve error "No module named ovirtsdk4" in v2v rhv-upload conversion
https://bugzilla.redhat.com/1598715
Adding QXL device in OVF causes Cirrus Logic device to be added to guest
https://bugzilla.redhat.com/1598350
RFE: virt-v2v should preserve <genid>
https://bugzilla.redhat.com/1596851
Transfer fails if local host is in maintenance mode
https://bugzilla.redhat.com/1596810
Transfer fails if local host belongs to another DC
https://bugzilla.redhat.com/1592468
v2v to RHV transfer fails with: error: [empty name]: cannot read '//*/disksection'
with value: null
https://bugzilla.redhat.com/1592061
virt-v2v convert rhel5.3 failure when executing rpm -ql kernel-2.6.18-128.el5 command
https://bugzilla.redhat.com/1591789
p2v: error: XML error: CPU vendor specified without CPU model
https://bugzilla.redhat.com/1590220
Hide rhv-upload option in virt-p2v client
https://bugzilla.redhat.com/1588451
Don't use relative socket paths for NBD
https://bugzilla.redhat.com/1588088
RFE: Support for -o rhv-upload via Unix domain socket
https://bugzilla.redhat.com/1586198
ovirt-imageio-daemon times out during migration
https://bugzilla.redhat.com/1580309
virt-v2v rhel7.6 build can't convert guest to null with qemu-kvm rhel7.5.z build
https://bugzilla.redhat.com/1580292
Virt-v2v rhel7.6 build can't convert guest with qemu-kvm rhel7.5.z build
https://bugzilla.redhat.com/1579047
virt-builder: ubuntu-18.04 template has stray HTTP proxy configured for apt
https://bugzilla.redhat.com/1575640
virt-builder: error: host cpu (x86_64) and guest arch (unknown) are not compatible
https://bugzilla.redhat.com/1570407
virt-v2v -i ova gives checksum error when missing files are mentioned in .mf
https://bugzilla.redhat.com/1567763
guestfsd: error: /Windows/Drivers/VirtIO: Read-only file system
https://bugzilla.redhat.com/1564983
The mount-vfs failed to mount the logical volume
https://bugzilla.redhat.com/1561828
RHV tools not properly installed in migrated Windows VM's causing boot failure
https://bugzilla.redhat.com/1559027
virt-v2v does not honor --network with -o rhv-upload
https://bugzilla.redhat.com/1557273
[RFE] Upload images directly to oVirt (virt-v2v -o rhv-upload)
https://bugzilla.redhat.com/1544842
[RFE] Add libosinfo short-id to virt-inspector output
https://bugzilla.redhat.com/1544674
virt-inspector --help differs from manpage
https://bugzilla.redhat.com/1544227
RFE: recognize the Kali Linux distribution
https://bugzilla.redhat.com/1532224
Resume=/dev/sdaX can't be updated to resume=/dev/vdaX in rhel7 guest's grub file after
v2v conversion
https://bugzilla.redhat.com/1530967
Change categories of "Guest Operating system management by VIX API" in v2v man page
https://bugzilla.redhat.com/1527334
Various -it vddk -io vddk* options should be documented, removed or fixed
https://bugzilla.redhat.com/1148012
Reverted: RFE: Allow qemu-bridge-helper to be used to implement guestfs_set_network
RELEASE NOTES FOR LIBGUESTFS 1.38
These release notes only cover the differences from the previous stable/dev branch split
(1.36.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
New tools
Virt-builder-repository is a new tool allowing end users to create and update virt-builder
repositories (Cédric Bosdonnat).
Virt-rescue (while not a new tool) has been substantially rewritten, implementing job
control, -m and -i options, escape keys, etc.
New features in existing tools
Virt-builder planner has been improved so that faster and more efficient build plans are
chosen for complex cases, especially when either the tmpdir or output is on networked
storage.
New virt-builder Fedora templates (starting with Fedora 26) will have plain partition
layout and use GPT for partitions.
Virt-customize "firstboot" scripts in guests using systemd are now installed under the
"multi-user.target" instead of "default.target" so they will only run when the system is
booted normally.
Virt-customize now sets a random /etc/machine-id for Linux guests, if one is not already
set.
Virt-df now works correctly on filesystems with block sizes smaller than 1K (Nikolay
Ivanets).
Virt-dib has further compatibility enhancements with diskimage-builder (Pino Toscano).
Virt-sysprep removes "DHCP_HOSTNAME" from ifcfg-* files.
Virt-sysprep now works on Oracle Linux (Jamie Iles).
Virt-resize now correctly copies GPT partition attributes from the source to the
destination (Cédric Bosdonnat).
Bash tab completion implemented or enhanced for: virt-win-reg, virt-v2v-copy-to-local.
virt-v2v and virt-p2v
Virt-v2v can now read VMware VMX files directly, either from local disk, NFS storage, or
over SSH from an ESXi hypervisor.
Virt-v2v can now use VDDK as an input source.
Both virt-v2v and virt-p2v are now able to pass through the source CPU vendor, model and
topology. However unfortunately not all source and target hypervisors are able to provide
or consume this data at present (Tomáš Golembiovský).
Virt-v2v now supports encrypted guests (Pino Toscano).
Virt-v2v can now handle VMware snapshots. Note that the snapshots are collapsed — it does
not convert the chain of snapshots into a chain of snapshots.
Virt-v2v now installs Windows 10 / Windows Server 2016 virtio block drivers correctly
(Pavel Butsykin, Kun Wei).
Virt-v2v now installs virtio-rng, balloon and pvpanic drivers, and correctly sets this in
the target hypervisor metadata for hypervisors which support that (Tomáš Golembiovský).
Virt-v2v now installs both legacy and modern virtio keys in the Windows registry (Ladi
Prosek).
Virt-p2v can now preserve (in some cases) the offset of the Real Time Clock from UTC.
Virt-p2v now combines several scp commands to the conversion server into a single command,
improving conversion times.
Virt-v2v now detects the special Linux Xen PV-only kernels correctly (Laszlo Ersek).
Virt-v2v -o glance now generates the right properties for UEFI guests (Pino Toscano).
Virt-v2v -o null now avoids spooling the guest to a temporary file, instead it writes to
the qemu "null block device". This makes it faster and use almost no disk space.
Virt-v2v -o rhv now supports Windows 2016 Server guest type.
Virt-v2v -i libvirtxml can now open network disks over http or https.
Virt-v2v will now give a warning about host passthrough devices (Pino Toscano).
The virt-v2v --machine-readable output has been enhanced so it includes "vcenter-https",
"xen-ssh" and "in-place" facts (Pino Toscano).
Language bindings
Fix multiple memory leaks and other data corruption problems in the Java bindings (Pino
Toscano).
Perl %guestfs_introspection has been dropped.
Inspection
Inspection support was rewritten in OCaml and included inside the daemon. This makes
inspection considerably faster, more robust and more easily extensible in future.
Better icon support for ALT Linux guests (Pino Toscano).
Better support for NeoKylin (Qingzheng Zhang).
Can handle OSes like Void Linux which do not include "VERSION_ID" in /etc/os-release (Pino
Toscano).
Add support for Microsoft MS-DOS (Daniel Berrangé).
Architectures and platforms
Multiple fixes for S/390 architecture. Libguestfs and all the tools should now compile
and run on this architecture.
Other
The libguestfs API is now thread-safe (although not parallel). You can call APIs on the
same handle from multiple threads without needing to take a lock.
Security
There were multiple vulnerabilities in the icoutils "wrestool" program which is run by
libguestfs to create icons for Windows guests. Using the latest "wrestool" is
recommended.
API
New APIs
"hivex_value_string"
This replaces the deprecated "hivex_value_utf8" API, but does the same thing.
"part_get_gpt_attributes"
"part_set_gpt_attributes"
Read and write GPT partition attribute flags (Cédric Bosdonnat).
"part_resize"
Enlarge or shrink an existing partition (Nikos Skalkotos).
"yara_destroy"
"yara_load"
"yara_scan"
Support for the Yara malware scanning engine (Matteo Cafasso).
Other API changes
APIs implemented in the daemon can now be written in either C or OCaml. Several APIs were
rewritten in OCaml, although we are not planning to rewrite all of them.
You will now get a clear error message if you try to add too many disks to the appliance,
instead of getting a peculiar failure from qemu.
Certain APIs accidentally allowed you to use "/dev/urandom" as an input "device", eg.
"g.copy_device_to_device("/dev/urandom", "/dev/sda")". The code has been modified to
forbid this usage.
All APIs for inspecting installer CDs have been deprecated. Use libosinfo for this task.
Build changes
A working OCaml compiler ≥ 4.01 is now required for building libguestfs. The "./configure
--disable-ocaml" option remains but is only used to disable the OCaml language bindings.
Add "RELEASES" file which lists release dates for each version of libguestfs. You must
update this file when making a new release.
Documentation generated by "gtk-doc" has been removed. "./configure --enable-gtk-doc" now
does nothing.
Libtirpc is now used for XDR functions and rpcgen. Note that glibc has deprecated and in
most Linux distros dropped these, so for most people this will be an extra dependency
(Martin Kletzander).
Libxcrypt is now used for crypt(3). This is required if using glibc ≥ 2.27.
"ocaml-hivex" is now required.
Libvirt ≥ 1.2.20 is now required.
There is now a "make check-root" target for tests which need to be run as root (analogous
to "make check-slow").
"./configure"-time check for "__attribute__((cleanup))" now works in the cross-compilation
case (Yann E. Morin).
The "AUTHORS" and "p2v/about-authors.c" files are now generated from a single place.
Either GnuPG v1 or v2 can be used.
"./configure --with-guestfs-path" may be used to set the default "LIBGUESTFS_PATH". In
addition the way that the path is searched has changed slightly so that all types of
appliances are searched in each path element separately (Pavel Butsykin).
"GUESTFSD_EXT_CMD" which was used to mark external commands in the daemon has been
removed. It was originally used by SUSE builds, but they have not been using it for a
while.
The output from "./configure" is now visually grouped under headings related to what it is
doing, making it much easier to scan (Pino Toscano).
OCaml dependencies are now generated from a single script instead of multiple not-quite-
the-same Makefile fragments.
"./configure --with-distro=ID" can be used to override automatic Linux distro detection at
build time (Pino Toscano).
qemu ≥ 2.10 is supported (but not required). This adds mandatory locking to disks and
libguestfs turns this off in certain circumstances when it is known to be safe (Lars
Seipel, Peter Krempa, Daniel Berrangé, Pino Toscano, Fam Zheng, Yongkui Guo, Václav
Kadlčík).
Internals
Most common code has been moved to the common/ subdirectory, with OCaml common code being
in common/ml* directories (eg. common/visit and common/mlvisit contain the visitor
library in C and OCaml respectively). The mllib directory has been deleted and replaced
by common/mltools.
There is now a lightweight OCaml binding for PCRE, see common/mlpcre. Use of OCaml "Str"
library has been mostly replaced with PCRE.
Add more calls to "udev_settle" to improve stability of partition code (Dawid Zamirski).
Run "udev_settle" with --exit-if-exists option, which improves the speed of this command
(Pavel Butsykin).
Detect new locations of major(3), minor(3), makedev(3).
Actions can now be deprecated with no suggested replacement, for APIs such as
"guestfs_wait_ready" that should simply be removed from client code.
Use gnulib "set_nonblocking_flag" wrapper instead of calling fcntl(2) with "O_NONBLOCK"
(Eric Blake). Similarly "set_cloexec_flag".
Fix memory leak in XFS version of "guestfs_vfs_minimum_size" (Pino Toscano).
Valgrind checks now run on the virt-p2v binary.
Unicode single quotes ("‘’") and now used in place of '' or `' throughout the code and
documentation. Similarly for "’s" instead of "'s".
The "is_zero" function has been reimplemented for greater speed (Eric Blake).
In the direct backend, virtio-blk support has been removed. Virtio-scsi is now the only
supported way to add disks.
Generator string parameter and return types have been rationalised so there are only two
types ("String", "StringList") with many subtypes eg. "FileIn" becomes "String (FileIn,
...)".
The appliance disk image can now be in formats other than raw (Pavel Butsykin).
Multiple improvements to how we automatically build Debian templates for virt-builder
(Pino Toscano). Enable serial console for these templates (Florian Klink).
In the daemon, instead of making a private copy of lvm.conf and modifying it (eg for
filters), start with an empty file since LVM understands that to mean "all defaults"
(Alasdair Kergon, Zdenek Kabelac).
The "direct" backend can now run QMP queries against the QEMU binary, enhancing the kinds
of information we can detect. In addition the code to query QEMU has been made more
robust for handling multiple parallel queries of different versions of QEMU.
OCaml Augeas bindings are bundled under common/mlaugeas. The long term plan is to remove
this and use system ocaml-augeas when it is more widely available in distros (Pino
Toscano).
All OCaml modules ("*.ml" files) are now required to have an interface file ("*.mli"). If
they don't export anything then the interface will be empty except for comments.
Certain OCaml features in OCaml ≥ 4.01 are used throughout the code, including replacing
‘{ field = field }’ with ‘{ field }’.
Virt-builder "make-template" utility now uses the "virt-install --transient" option so
that we should never need to clean up left over domains after a crash. It also saves
kickstarts and virt-install commands, which are committed to git for future reference.
/dev/shm is now created in the appliance (Nicolas Hicher).
In verbose mode on Fedora guests, virt-customize will now use "dnf --verbose" enabling
better debugging output.
Virt-v2v input and output classes now contain a "#precheck" method which is used to
perform environmental checks before conversion starts.
Virt-p2v enables miniexpect debugging. It is written to stderr (of virt-p2v).
Virt-v2v free space checks are more liberal especially for smaller guests (Pino Toscano).
Bugs fixed
https://bugzilla.redhat.com/1540535
Example URI of "Convert from ESXi hypervisor over SSH to local libvirt" is incorrect
in v2v man page
https://bugzilla.redhat.com/1539395
virt-customize segfaults after upgrading to 1.37.35-3
https://bugzilla.redhat.com/1536765
Libguestfs Perl bindings can leak a small amount of memory on error
https://bugzilla.redhat.com/1536763
libguestfs Lua bindings use strerror(), which isn’t thread safe
https://bugzilla.redhat.com/1536603
man page makes no mention of using '--' when trying to change exit on error behavior
https://bugzilla.redhat.com/1525241
virt-df displays zeros for filesystems with block size =512
https://bugzilla.redhat.com/1519204
v2v should improve the result when convert a rhel7.4 guest with no available kernels
found in the bootloader
https://bugzilla.redhat.com/1518517
virt-v2v fails with "unsupported configuration: shared access for disk 'sdb' requires
use of supported storage format"
https://bugzilla.redhat.com/1516094
Mere presence of QEMU file locking options breaks NBD (Block protocol 'nbd' doesn't
support the option 'locking')
https://bugzilla.redhat.com/1514756
./configure --disable-ocaml breaks building common/mlpcre which breaks building daemon
https://bugzilla.redhat.com/1513884
[RFE]Should update some vddk info in v2v man page
https://bugzilla.redhat.com/1508874
virt-v2v: warning: ova disk has an unknown VMware controller type (20)
https://bugzilla.redhat.com/1506572
virt-v2v '-i ova' is not parsing the MAC address from the source OVF
https://bugzilla.redhat.com/1506511
virt-builder fails to parse repo file if it has blank space after the repository
identifier
https://bugzilla.redhat.com/1503958
Failed to convert the rhel5 guest with kmod-xenpv installed from xen server by
virt-v2v
https://bugzilla.redhat.com/1503497
qemu-kvm fails to open qcow2 files in read-only mode with qemu-kvm 1.5.3
https://bugzilla.redhat.com/1500673
Error info shows wrong sometimes when ssh to conversion server using non-root user
with sudo on p2v client
https://bugzilla.redhat.com/1500537
/dev/shm does not exist in the appliance environment
https://bugzilla.redhat.com/1497475
guestfish cannot list commands from interactive mode
https://bugzilla.redhat.com/1493048
Unbound constructor Hivex.OPEN_UNSAFE
https://bugzilla.redhat.com/1484957
bump debian images to use single-partition layout
https://bugzilla.redhat.com/1482737
virt-resize failed to expand swap partition for RHEL5.11 guest image with "parsing
UUID failed"
https://bugzilla.redhat.com/1477623
Running file API on a special chardev may hang forever
https://bugzilla.redhat.com/1476081
inspect-os report error: could not parse integer in version number: V7Update2
https://bugzilla.redhat.com/1472719
[RFE]Add warning in process of v2v converting guest which has pci passthrough device
https://bugzilla.redhat.com/1472208
virt-v2v fails on opensuse 13.2 guest with error: statns: statns_stub: path must start
with a / character
https://bugzilla.redhat.com/1469655
firstboot scripts are not correctly installed in Fedora 26
https://bugzilla.redhat.com/1466563
Libguestfs should pass copyonread flag through to the libvirt XML
https://bugzilla.redhat.com/1465665
1.36.x build failure: gtkdocize fails using newer autotools due to missing
GTK_DOC_CHECK in configure.ac
https://bugzilla.redhat.com/1460338
guestfs_shutdown hangs if main process sets signal handlers
https://bugzilla.redhat.com/1459979
guestfs_add_domain_argv fails with readonly option when vdi/vhd disk is attached to
libvirt domain
https://bugzilla.redhat.com/1451665
RFE: Virt-v2v can't convert the guest which has encrypted partition
https://bugzilla.redhat.com/1450325
document URI format for -a parameters of tools
https://bugzilla.redhat.com/1448739
RFE: Support multicore decompression for OVA files using pigz and pxz
https://bugzilla.redhat.com/1447202
Win 2016 guest is described as Win 10 after imported to RHEVM
https://bugzilla.redhat.com/1441197
RFE: ability to convert VMware virtual machines via vmx
https://bugzilla.redhat.com/1438939
Please drop or update GnuPG (1.4.x) dependency
https://bugzilla.redhat.com/1438794
[RFE] Install Windows virtio-rng drivers on VMs imported
https://bugzilla.redhat.com/1433937
virt-inspector can't get icon info from altlinux-centaurus
https://bugzilla.redhat.com/1433577
policycoreutils setfiles >= 2.6 does .. nothing
https://bugzilla.redhat.com/1431579
Windows 8 UEFI from VMware to KVM fails to boot after conversion
https://bugzilla.redhat.com/1430680
There is error info about "No such file or directory" when convert a guest from ova
file by v2v
https://bugzilla.redhat.com/1430184
virt-dib should generate sha256 checksum instead of sha512
https://bugzilla.redhat.com/1429506
RFE: OVMF should be detected on conversion server to prevent failed conversion
https://bugzilla.redhat.com/1429491
Should rename network name of rhv in virt-v2v man page
https://bugzilla.redhat.com/1427529
virt-sysprep should remove DHCP_HOSTNAME
https://bugzilla.redhat.com/1417306
QEMU image file locking (libguestfs)
https://bugzilla.redhat.com/1409024
[Debian] Missing db_dump abort inspection
https://bugzilla.redhat.com/1406906
Segmentation fault when reading corrupted path with Python 3 bindings
https://bugzilla.redhat.com/1379289
RFE: virt-p2v should support mnemonic operations
https://bugzilla.redhat.com/1378022
There is virt-v2v warning about <listen type='none'> during converting a guest which
has listen type='none' in XML
https://bugzilla.redhat.com/1376547
qemu-system-s390x: -device isa-serial,chardev=charserial0,id=serial0: 'isa-serial' is
not a valid device model name
https://bugzilla.redhat.com/1374232
selinux relabel fails on RHEL 6.2 guests with "libguestfs error: selinux_relabel: :
Success"
https://bugzilla.redhat.com/1367738
Missing bash completion scripts for: virt-diff guestunmount virt-copy-in virt-copy-out
virt-customize virt-get-kernel virt-p2v-make-disk virt-p2v-make-kickstart virt-tar-in
virt-tar-out virt-v2v-copy-to-local virt-win-reg
https://bugzilla.redhat.com/1362649
RFE: virt-sysprep does not utilize libguestfs encryption support
https://bugzilla.redhat.com/1172425
[RFE]virt-v2v failed to convert VMware ESX VM with snapshot
https://bugzilla.redhat.com/1171654
Modify a file in virt-rescue with vi on some linux terminal such as yakuake, can lead
to abnormal display in virt-rescue shell
https://bugzilla.redhat.com/1167623
Remove "If reporting bugs, run virt-v2v with debugging enabled .." message when
running virt-p2v
https://bugzilla.redhat.com/1152819
Can not end a running command in virt-rescue by press ^C or other keys, the only way
is to exit virt-rescue
RELEASE NOTES FOR LIBGUESTFS 1.36
These release notes only cover the differences from the previous stable/dev branch split
(1.34.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
New tools
Virt-tail is a new tool for following (tailing) log files within a guest, similar to the
regular "tail -f" command.
New features in existing tools
Virt-customize, virt-get-kernel, virt-sparsify and virt-sysprep can now handle encrypted
guests (Pino Toscano).
Virt-builder and virt-customize now support --append-line, which is useful for adding
lines to the end of configuration files.
Virt-resize can now shrink and expand swap partitions (Pino Toscano).
Virt-resize can now output to non-local disks (Pino Toscano).
Virt-sysprep has a new operation called "backup-files" for removing editor backups, and
"passwd-backups" for removing /etc/passwd- and similar.
Virt-dib can now create checksums using the new --checksum option (Pino Toscano).
Virt-dib can now create tgz files. In addition, extended attributes and SELinux labels
are preserved in the output tar file (Pino Toscano).
Virt-dib can now create squashfs files (Pino Toscano).
Bash tab-completion is now available in every command line tool that is shipped.
virt-v2v and virt-p2v
Conversions of Debian (6+) and Ubuntu (10.04+) guests are now supported (Tomáš
Golembiovský, Pino Toscano).
Conversions from SUSE Xen hypervisor have now been tested (Cédric Bosdonnat).
Windows conversions may now install a program "pnp_wait.exe" which prevents conflicts
between the Windows Plug-and-Play Manager and our own scripts that install virtio device
drivers. Enabling this requires the "pnp_wait.exe" program to be built separately (Roman
Kagan).
OVA files exported from AWS can now be converted (Shahar Havivi).
When converting OVA files, in some circumstances virt-v2v can now read disk images
directly from the OVA input file instead of needing to unpack the OVA file to a temporary
directory. This can save large amounts of disk space, and is quicker (Tomáš
Golembiovský).
Virt-p2v can now be built on RHEL 5 (2007-era) Linux and RHEL 6, which means that 32 bit
and hardware with ancient fakeraid disks can be virtualized. Binaries of virt-p2v based
on these old versions of RHEL can be found at http://oirase.annexia.org/virt-p2v/
Virt-p2v can now use nbdkit (an NBD server) as an alternative to qemu-nbd. In addition,
virt-p2v can use "socket activation" which is a more robust method for opening the NBD
listening socket. Socket activation works with qemu-nbd or nbdkit, but requires the most
up to date versions.
To prevent timeouts during P2V conversions, virt-p2v inhibits power saving on the physical
machine, and also sends ping packets over the ssh control and data connections.
Virt-v2v no longer removes the "Processor" and "Intelppm" nodes from the Windows Registry.
Xen and vCenter conversions can now be done using the libvirt backend, provided libvirt ≥
2.1.0 is used.
/dev/srX (SCSI CD-ROM) devices are ignored (Tomáš Golembiovský).
When converting SUSE Linux guests, use /etc/modprobe.conf.local if it exists.
Removing VMware tools from Linux guests should now work reliably (Pino Toscano).
When converting OVA files, virt-v2v now checks the disk image hash contained in the
manifest file, whereas previously it was ignored because of a mistake in the code. In
addition, SHA256 hashes are now supported (Tomáš Golembiovský).
When converting OVA files that contain compressed disk images, we now trust the
"ovf:compression" attribute from the metadata instead of using content sniffing on the
disk image (Tomáš Golembiovský).
A new flag --vdsm-compat has been added to -o vdsm mode, allowing more efficient qcow2
images to be generated.
Since the RHEV product [commercially supported version of oVirt] has now been renamed to
RHV, "RHEV" was changed to "RHV" throughout the tooling. In particular, -o rhev becomes
-o rhv, although the old name can be used for backwards compatibility.
The "RHEV-APT" utility is only installed when the output hypervisor is oVirt or RHV.
A problem with virt-v2v running out of memory when doing an SELinux relabel of the guest
filesystem should now be resolved.
Language bindings
Setting "EXTRA_JAVAC_FLAGS" before ./configure allows you to add arbitrary flags to
"javac" when compiling the Java bindings.
Use of any libguestfs API which returned a single struct, from Perl or Java bindings,
would have leaked memory. This has now been fixed (Pino Toscano).
Inspection
Inspection of Windows guests with mildly corrupted Windows Registry hives should now work
instead of failing with an error. This feature requires hivex ≥ 1.3.14 (Dawid Zamirski).
For Debian guests, we can now read the URL, source name, summary and full description of
installed packages. For RPM-based guests we can read the URL, summary and description
(Pino Toscano).
Inspection of guest operating systems that use a separate /usr partition should now work
more reliably (Pino Toscano).
When parsing guest /etc/fstab, paths are reduced to a canonical form (eg.
"///usr//local//" → "/usr/local").
Inspection of btrfs subvolumes now works where the /etc/fstab options field contains
commas.
/dev/cdN devices in guest /etc/fstab are ignored (Pino Toscano).
Architectures and platforms
Stable releases are now tested on aarch64, ppc64 and ppc64le architectures.
The RISC-V architecture is now handled as a guest, and libguestfs will now at least
compile on RISC-V (but probably not work as there is no usable qemu at the time of
writing).
Detection of S/390 and S/390x binaries and guests is now supported.
Other
ExFAT filesystems are now supported (Miles Wolbe).
Security
See also guestfs-security(1).
There were no CVEs reported in this development cycle. However some security-related
hardening was carried out as described below.
Temporary filenames are now always generated using randomness from /dev/urandom
(previously the C function random(3) was used in one case).
The $TERM environment variable is now validated before passing it through to the appliance
kernel command line.
API
New APIs
"guestfs_aug_transform"
Exposes the Augeas "aug_transform" API (Pino Toscano).
"guestfs_find_inode"
Find files by inode number (Matteo Cafasso).
"guestfs_inspect_get_windows_software_hive"
"guestfs_inspect_get_windows_system_hive"
Return the path to the Windows "HKLM\SYSTEM" and "HKLM\SOFTWARE" hives computed during
inspection.
"guestfs_mksquashfs"
Create a squashfs filesystem from a path (Pino Toscano).
Other API changes
"guestfs_add_domain"
This call now handles libvirt file-based volumes correctly, where previously these
would have been ignored. Also handled are disks which require libvirt authentication
secrets to open (Pino Toscano).
"guestfs_canonical_device_name"
This call will no longer incorrectly modify Linux software RAID device names (like
/dev/mdX).
"guestfs_file_architecture"
Previously the "file_architecture" API could return either of the strings "i386" or
"i486" for 32 bit x86 binaries. It now only returns "i386" (as documented).
This API can now return the following new values: "riscv32", "riscv64", "riscv128",
"s390", "s390x".
"guestfs_hivex_open"
This now has an optional "GUESTFS_HIVEX_OPEN_UNSAFE" flag which allows certain
corrupted Windows Registry hives to be opened. This feature requires hivex ≥ 1.3.14
(Dawid Zamirski).
"guestfs_list_partitions"
This call now returns Linux software RAID partitions.
"guestfs_part_to_dev"
This call now correctly handles partition names which include "p<N>" (Pino Toscano).
"guestfs_set_label"
This call can now change the labels of swap partitions (Pino Toscano).
Build changes
libmagic, the library part of the "file" command, is now required at build time
(previously optional).
GCC 7 is now supported.
"Silent rules" are now used for OCaml programs, Java bindings. To show the full command
line executed, add "V=1" on the make command line (Pino Toscano).
Slow testing ("make check-slow") now covers: firstboot scripts in Linux guests; v2v
conversion of a selection of real Linux guests; the virt-customize --hostname and
--timezone settings; the --root-password parameter; that the serial console works in virt-
builder guests.
Large generated C source files, eg. the list of commands found in fish/cmds.c (and many
more), have been split into smaller files to speed parallel compilation.
"make maintainer-check-extra-dist" now checks that all generated files are included in the
tarball.
The tests no longer assume that "." is in Perl's @INC, as it is going to be removed soon
(Pino Toscano).
Debian hosts using UsrMerge are now supported (Pino Toscano).
Header files and C structs can now have internal documentation using the special "/** ...
*/" comments.
"@VAR@" subtitutions in "./run" are now fully quoted. This is necessary so that (eg)
"./configure PYTHON=/some/path" works robustly if "/some/path" contains characters that
need to be quoted (Hilko Bengen).
gperf ≥ 3.1 is now supported.
Kraxel's old edk2 builds can no longer be used for UEFI support. UEFI code is now fully
free software, so use the versions bundled with your Linux distro instead.
Virt-p2v can now be compiled on RHEL 5 (2007-era) Linux with Gtk 2.10.
Internals
The generator and mllib "Common_utils" modules are now shared from the same source file.
A considerable amount of common code has been moved into the common directory in the
source and is now compiled only once. The mini-libraries located under here are:
common/edit, common/errnostring, common/miniexpect, common/options, common/parallel,
common/progress, common/protocol, common/utils, common/visit, common/windows.
The directory containing the main library code has moved from src → lib.
All tests written in shell script now use a common file of utility functions
(tests/test-functions.sh). There are several new utility functions, mainly for skipping
tests. Also these test scripts can now use autoconf-like path variables like
$abs_top_srcdir.
UEFI paths are now stored in the generator (generator/uefi.ml).
The way the generator handles actions and procedure numbers was changed quite
substantially. See generator/actions_*.ml and generator/proc_nr.ml.
The gnulib "getprogname" module is now used everywhere when needing/printing the program
name (Pino Toscano).
perl/Guestfs.c is not translatable (Nikos Skalkotos).
Virt-builder templates moved from builder/website to builder/templates and there is now a
single unified program which can build any template.
All Windows registry utilities used by virt-customize and virt-v2v have been moved to a
common module called "Registry" under mllib.
All POSIX bindings have been moved to a new module called "Unix_utils" under mllib.
Inspection, virt-customize and virt-v2v no longer recompute the Windows "%systemroot%",
"CurrentControlSet" or paths to the "HKLM\SYSTEM" and "HKLM\SOFTWARE" hives in multiple
places. Instead these are all computed once (during inspection) and passed to the other
tools through various "guestfs_inspect_get_windows_*" APIs.
"/dev/pts" is now available inside the appliance, so any tools we run which require a pty
will now work (Pino Toscano).
Most OCaml warnings have been fixed.
There is now a single common function for creating temporary files
("guestfs_int_make_temp_path") (Matteo Cafasso).
The $TERM environment variable is now validated before passing it through to the appliance
kernel command line.
Useless USB and memballoon devices are no longer created in the appliance (Laine Stump).
On aarch64 we now use virtio-pci for the appliance. This is somewhat faster than virtio-
mmio.
Use of srandom(3) and random(3) has been minimized. In particular, temporary filenames
are no longer created based on randomness returned by random(3), but /dev/urandom is used
instead.
Bugs fixed
https://bugzilla.redhat.com/1425306
typo error in virt-tail man page
https://bugzilla.redhat.com/1418283
virt-v2v: appliance runs out of memory running setfiles command
https://bugzilla.redhat.com/1417549
/usr/bin/x86_64-linux-gnu-ld.bfd.real:
../common/progress/.libs/libprogress.a(libprogress_la-progress.o): undefined reference
to symbol 'UP@@NCURSES_TINFO_5.0.19991023'
https://bugzilla.redhat.com/1417444
*** No rule to make target '../perl/lib/Sys/Guestfs.c', needed by 'libguestfs.pot'
https://bugzilla.redhat.com/1416941
compile of 1.34.3 fails with gperf 3.1
https://bugzilla.redhat.com/1414682
guestfs_canonical_device_name incorrectly returns /dev/sd0 for MD devices (/dev/md0)
https://bugzilla.redhat.com/1414510
guestfs_list_filesystems does not recognize ddf partitions
https://bugzilla.redhat.com/1409023
[Debian] ldmtool not installed in the appliance
https://bugzilla.redhat.com/1404287
qemu-kvm cannot boot RHEL 7 kernel with TCG, hangs at "Probing EDD (edd=off to
disable)..."
https://bugzilla.redhat.com/1404182
RFE: virt-resize should support a URL as the outdisk
https://bugzilla.redhat.com/1401474
Importing VMs from VMware is failing with error "Inspection field 'i_arch' was
'unknown'"
https://bugzilla.redhat.com/1401320
RFE: Increate virt-sysprep coverage a bit
https://bugzilla.redhat.com/1400205
Add --vdsm-compat=1.1 flag for VDSM
https://bugzilla.redhat.com/1398070
typo error in man page
https://bugzilla.redhat.com/1392798
secrets from libvirt domains are not read
https://bugzilla.redhat.com/1390876
"--machine-readable" info should be updated in virt-v2v manual page
https://bugzilla.redhat.com/1379289
RFE: virt-p2v should support mnemonic operations
https://bugzilla.redhat.com/1378022
There is virt-v2v warning about <listen type='none'> during converting a guest which
has listen type='none' in XML
https://bugzilla.redhat.com/1377081
virt-p2v manual should update the new dialog information
https://bugzilla.redhat.com/1375157
virt-v2v: -i ova: Permission denied when using libvirt and running as root
https://bugzilla.redhat.com/1374651
Can't install qxl driver for display device in win7 guest after converting to glance
by virt-v2v
https://bugzilla.redhat.com/1374405
There is HTTP 404 error info when convert guest to glance by virt-v2v
https://bugzilla.redhat.com/1374232
selinux relabel fails on RHEL 6.2 guests with "libguestfs error: selinux_relabel: :
Success"
https://bugzilla.redhat.com/1372668
Process status is not normal in windows guest after converted from kvm to rhev by
virt-v2v
https://bugzilla.redhat.com/1372269
Builder does not set hostname properly for Debian 8 (Jessie)
https://bugzilla.redhat.com/1371843
Improve OVA import compatibility
https://bugzilla.redhat.com/1370424
virt-manager coredump when vm with gluster image exists
https://bugzilla.redhat.com/1367839
Cannot import VMs from Xen and VMware when using RHEL7.3 host.
https://bugzilla.redhat.com/1367738
Missing bash completion scripts for: virt-diff guestunmount virt-copy-in virt-copy-out
virt-customize virt-get-kernel virt-p2v-make-disk virt-p2v-make-kickstart virt-tar-in
virt-tar-out virt-v2v-copy-to-local virt-win-reg
https://bugzilla.redhat.com/1367615
OVMF file which is built for rhel7.3 can't be used for virt-v2v uefi conversion
https://bugzilla.redhat.com/1366456
Converting rhel7 host installed on RAID:warning: fstrim: fstrim: /sysroot/: the
discard operation is not supported
https://bugzilla.redhat.com/1366049
RFE: libvirt backend: support handling disks stored as volume name in a pool
https://bugzilla.redhat.com/1365005
Guest name is incorrect if convert guest from disk image by virt-v2v
https://bugzilla.redhat.com/1362649
RFE: virt-sysprep does not utilize libguestfs encryption support
https://bugzilla.redhat.com/1354507
virt-v2v conversions from vCenter do not consistently obey the proxy environment
variables
https://bugzilla.redhat.com/1168144
warning: fstrim: fstrim: /sysroot/: FITRIM ioctl failed: Operation not supported
(ignored) when convert win2003 guest from xen server
https://bugzilla.redhat.com/1161019
RFE: Only install RHEV-APT if virt-v2v -o rhev/-o vdsm option is used
https://bugzilla.redhat.com/1152369
virt-v2v failed to convert RHEL 6.7 UEFI guest: no grub1/grub-legacy or grub2
configuration file was found
https://bugzilla.redhat.com/1141631
[RFE] virt-v2v should support convert a guest to a dir-pool with using pool's uuid
https://bugzilla.redhat.com/1134878
libvirt reports json "backing file" is missing
https://bugzilla.redhat.com/1019388
firstboot scripts (virt-builder, virt-sysprep) don't work for Debian 6 & 7 guests
https://bugzilla.redhat.com/737600
virt-v2v windows xp - machine dies BSOD - processr,sys - workaround provided
RELEASE NOTES FOR LIBGUESTFS 1.34
These release notes only cover the differences from the previous stable/dev branch split
(1.32.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
Multiple performance enhancements were made in libguestfs. The "hot cache" time to launch
to appliance should be under 1 second assuming recent qemu and kernel are installed.
There are also new utilities for precisely benchmarking libguestfs (utils/boot-benchmark
and utils/boot-analysis in the source tree).
The virt-p2v tool for converting physical machines to virtual machines was substantially
improved. This includes: clearer, coloured output during conversions, support for Gtk 3,
more detailed information about hardware, click to identify network interfaces, more
debugging tools included with the ISO, and many bug fixes.
f2fs (Flash Friendly File System) is now supported (Pino Toscano).
New tools
virt-p2v-make-kiwi(1) can be used to build the virt-p2v ISO based on SLES and openSUSE,
using the kiwi utility (Cédric Bosdonnat).
New features in existing tools
virt-resize will now preserve the GPT GUID. This was required for Windows Server 2012 R2,
where the bootloader would become confused if the GUID changed (Maxim Perevedentsev).
virt-resize will use sparse copying for (old MBR-style) extended partitions. This makes
resizing of guests that use extended partitions much faster (Maxim Perevedentsev).
virt-p2v kernel command line options can now be used to set defaults for GUI
configuration.
The virt-p2v debugging options have been completely removed, simplifying the interface and
documentation. Debugging information is now captured fully automatically.
virt-p2v-make-disk lets you specify an --arch option, allowing you to build a 32 bit
virt-p2v, for compatibility with older systems.
virt-p2v-make-disk no longer requires that you specify an "os-version" for the virt-p2v
disk. If omitted it will try to choose a suitable "os-version" depending on your host
system.
virt-p2v-make-disk and virt-p2v-make-kickstart both gain a new --install option that
allows you to add arbitrary extra packages to the virt-p2v ISO, for customization,
additional debugging tools and so on.
virt-v2v will now uninstall Parallels Tools (or the equivalent Virtuozzo Tools) from Linux
guests. Also stop the Windows drivers from loading at boot. (Roman Kagan and Pavel
Butsykin)
virt-v2v --in-place mode has been enhanced to allow the caller to choose whether or not to
install certain virtio drivers in the guest (Roman Kagan).
virt-v2v conversion of Windows guests was substantially rewritten and simplified (Roman
Kagan).
virt-v2v --in-place mode now supports installing virtio-scsi drivers in guests (Roman
Kagan).
virt-v2v can now convert SUSE guests and SUSE guests using UEFI (Cédric Bosdonnat and Jim
Fehlig).
virt-v2v can now convert guests to Glance that have multiple disks. Previously it would
fail on such guests.
The virt-v2v --no-trim and --vmtype options are now no-ops. They will print a warning but
are otherwise ignored. virt-v2v can now generate the OVF vmtype correctly without user
intervention.
virt-v2v has now been tested against SUSE Xen as a source hypervisor (Cédric Bosdonnat).
virt-v2v adds support for SUSE VMDP drivers (Cédric Bosdonnat).
virt-v2v can convert OVA files containing subfolders, as produced by SUSE Studio (Cédric
Bosdonnat).
virt-v2v sets the OVF "<Origin>" element correctly. oVirt has been extended to support
more source hypervisors (Shahar Havivi).
virt-v2v now supports Windows Server 2016 (Tomáš Golembiovský).
The virt-builder --list option can now be used to show all templates or a single template
(Pino Toscano).
All OCaml-based tools now use getopt_long(3) for option parsing, and --help output has
been improved (Pino Toscano).
virt-builder and virt-customize --selinux-relabel option can now fully relabel the guest
filesystem at build time, without requiring a lengthy autorelabel at first boot.
virt-customize --delete now accepts globs.
New virt-customize --uninstall option lets you uninstall packages.
virt-customize can now use "pvvxsvc" as an alternative to "rhsrvany" for running firstboot
scripts in Windows guests (Cédric Bosdonnat).
virt-customize now uses the strongest hashing scheme for passwords on Arch and Void Linux
(Pino Toscano).
virt-customize --install now works correctly on Arch (Pino Toscano).
virt-inspector has new options --no-applications and --no-icon to prevent the list of
applications and icon from being included in the XML output (Pino Toscano).
New virt-sysprep --network option has been added, allowing you to actually use the
--install etc options which were present in virt-sysprep before but did not usually work.
Note that the network is still disabled by default.
virt-sysprep "fs-uuids" operation no longer fails on btrfs guests (Maxim Perevedentsev).
virt-dib can output Docker images (Pino Toscano).
virt-dib has a new --drive-format option to allow the user to specify the format of the
helper drive (Pino Toscano).
All OCaml virt tools now have a --colors/--colours option which enables coloured output
(using ANSI escape sequences) even if the output is not a tty. The default is to check if
the output is a tty and disable coloured output if not. This allows coloured output to be
consumed by other tools.
Language bindings
PHP test coverage has been enhanced (Pino Toscano).
PHP 7 is now supported (Pino Toscano).
Python bindings are now compliant with PEP 8 (Pino Toscano).
A Python pip package is available in http://libguestfs.org/download/python/
The Ruby bindings now print the full exception if one is thrown by the event callback.
Note this is still incorrect behaviour as event callbacks should not throw exceptions, but
it aids debugging.
All OCaml libraries and programs are now compiled with -safe-string, if supported by the
OCaml compiler.
Inspection
Alpine Linux using busybox can now be inspected. Also the APK package manager is
supported in virt-customize (Pino Toscano).
We now handle inspection of Mageia 4 (Pino Toscano).
Void Linux and the Void Linux xbps package manager are fully supported (Pino Toscano).
Parsing of CoreOS version information has been enhanced (Pino Toscano).
It is now possible to get an icon from ALT Linux (Pino Toscano).
PLD Linux versions < 3 are now recognized (Pino Toscano).
Windows drive letters are now returned for guests using GPT partitions (Dawid Zamirski).
We can now correctly inspect Unix guests that do not have an /etc/fstab file (Pino
Toscano).
Added another source for the Ubuntu icon which doesn't rely on GNOME having been installed
in the guest.
We can now get an icon for Windows 7 64 bit guests.
Libosinfo integration was rewritten to deal with the new database format used by osinfo
(Pino Toscano).
Documentation
New manual page guestfs-building(1) describes how to build libguestfs from source.
The man pages, tools and tool --help output is now automatically checked to ensure that
all tool options are properly documented, that warning sections are included where
necessary, and that every page has a description section.
The guestfs-testing(1) man page has been refreshed and based on a newer libguestfs.
Architectures and platforms
virt-customize now works on POWER7 and POWER8 platforms, both big endian and little endian
(Xianghua Chen and Hu Zhang).
Security
See also guestfs-security(1).
CVE-2015-8869
https://bugzilla.redhat.com/CVE-2015-8869
This vulnerability in OCaml might affect virt tools written in the OCaml programming
language. It affects only 64 bit platforms. Because this bug affects code generation it
is difficult to predict which precise software could be affected, and therefore our
recommendation is that you recompile libguestfs using a version of the OCaml compiler
where this bug has been fixed (or ask your Linux distro to do the same).
virt-customize ownership of .ssh, .ssh/authorized_keys
https://bugzilla.redhat.com/1337561
Previously when virt-customize injected an SSH key into a guest, when it created the
~/.ssh and ~/.ssh/authorized_keys directory and file (in case they were missing) it
created them with owner and group "root.root". This has been fixed so the correct user is
used. This is not thought to have been exploitable.
Windows "%systemroot%"
The inspection code has been made more robust against guests which might use very long
"%systemroot%" (derived from the guest-controlled Windows Registry). This is not thought
to have been exploitable.
Virtio-rng is now available in the appliance
virtio-rng (the virtual Random Number Generator device) is now passed to the appliance,
which should improve the quality random numbers generated for GUIDs and cryptographic key
generation.
API
New APIs
"btrfs_filesystem_show"
List all devices where a btrfs filesystem is spanned (Pino Toscano).
"download_blocks"
"download_inode"
"filesystem_walk"
Download filesystem data blocks from a given partition. Download arbitrary files by
inode number. Retrieve all files from a filesystem including deleted files.
Note these require optional dependency The Sleuth Kit. (Matteo Cafasso)
"get_sockdir"
Read the path where temporary sockets are stored (Pino Toscano).
"mountable_device"
"mountable_subvolume"
Split a Mountable into device name and subvolume (Cédric Bosdonnat).
"ntfscat_i"
Download NTFS file by inode number (Matteo Cafasso).
"part_expand_gpt"
Allow in-place expanding of GPT partitions by moving the second (backup) partition
table to the end of the disk (Maxim Perevedentsev).
"part_get_disk_guid"
"part_set_disk_guid"
"part_set_disk_guid_random"
Get and set the GPT disk GUID, or set it to a fresh random value (Maxim
Perevedentsev).
"selinux_relabel"
SELinux-relabel part or all of the guest filesystem.
Other API changes
"guestfs_set_selinux", "guestfs_get_selinux", "guestfs_setcon", "guestfs_getcon" and
"guestfs_llz" have been deprecated. Use the new API "guestfs_selinux_relabel" to relabel
filesystems. Use "guestfs_lgetxattrs" to list the "security.selinux" extended attributes
of existing files.
"guestfs_vfs_minimum_size" can now be used on dirty filesystems (Maxim Perevedentsev).
"guestfs_ll" now works on paths which contain absolute symlinks (Pino Toscano).
"guestfs_glob_expand" now has an optional "directoryslash" boolean parameter which
controls whether trailing slashes are returned for directory names (Pino Toscano).
"guestfs_lvs" will no longer return LVs which have the "activationskip" flag set. The
reason is that such LVs have no "/dev/VG/LV" device node and so code which read the list
of LVs and then probed the devices themselves would immediately fail. You can use
"guestfs_lvs_full" if you want to read all LVs. (Pino Toscano).
"guestfs_list_disk_labels" now no longer fails if no disks with labels were added.
Instead it now returns an empty list (Pino Toscano).
"guestfs_is_lv" no longer fails if passed a btrfs subvolume, it returns false instead
(Maxim Perevedentsev).
Build changes
qemu ≥ 1.3.0 is required.
yajl (a JSON parsing library) is required to build libguestfs.
You can now build with GCC 6.
"make check-valgrind" now has substantially better coverage.
"make check-slow" now works again.
Use "make -C appliance clean-supermin-appliance" to clean the supermin appliance (it will
be rebuilt on next "make").
There are a variety of new rules for running virt-p2v from the source directory: "make -C
p2v run-virt-p2v-directly" | "run-virt-p2v-in-a-vm" | "run-virt-p2v-non-gui-conversion".
These are documented further in guestfs-hacking(1).
virt-p2v may be built using either Gtk 2 or Gtk 3. To force a particular version of Gtk
to be used, "./configure --with-gtk=2|3"
The "./configure" options are now mostly documented in guestfs-building(1).
Internals
In git, versions are now tagged with "v1.XX.YY" (previously they were tagged with
"1.XX.YY"). Using the "v-" prefix is more common in git repositories.
When using the libvirt backend, we now wait for qemu to exit gracefully instead of killing
it after 15 seconds. This helps when writing to slow devices (especially cheap USB keys).
Error messages from libvirt now include the "err->int1" field which usually contains the
"errno".
On ARM, all DTB (device tree) code has been removed. qemu creates the right device tree
on the fly, we do not need to specify one.
The C API tests now use larger test disks, allowing BTRFS to be tested properly (Pino
Toscano).
The tests should now work on a pure Python 3 host (Pino Toscano).
In C bindings, internal functions are now (mostly) consistently named "guestfs_int_*"
whereas previously there was no consistent scheme.
The old "safe_malloc" etc functions are now no longer exported by the library, nor used in
language bindings.
Setting TMPDIR to a path longer than ~ 100 characters will no longer cause libguestfs to
fail silently and randomly when creating Unix domain sockets (Pino Toscano).
The "COMPILE_REGEXP" macro can now be used in the daemon.
When tracing, results containing structs are now printed in full (Pino Toscano).
The Perl "Sys::Guestfs" module now no longer embeds an incrementing API "version number".
This module is now always at phony version "1.0". To find the real version of libguestfs
from Perl you must call "$g->version".
All code is compiled with "-Wstack-usage=10000" and multiple changes have been made to
remove stack allocation of large strings and buffers.
The error(3) function is now used everywhere, replacing most previous uses of perror(3) +
exit(3), and fprintf(3) + exit.
In C code, "/**" comments are turned into documentation which is automatically added to
the guestfs-hacking(1) manual page.
A safe "getumask" function has been added. For recent Linux kernels this uses the newly
added "Umask" field in /proc/self/status. For older Linux and other Unix, this uses a
thread-safe technique involving fork(2) (thanks: Josh Stone, Jiri Jaburek, Eric Blake).
Safe posix_fadvise(2) wrappers have been added, and more hints have been added to the code
which may make a minor difference to performance.
A safe wrapper around waitpid(2) has been added which handles "INTR" properly.
"podwrapper.pl" (used to generate the manual pages) now stops if any POD error is found.
A new script called "podcheck.pl" does cross-checking of --help output, tool options and
manual pages.
All version numbers in the library (eg. versions of qemu, versions of libvirt, versions of
guest operating systems) are unified in a single file src/version.c (Pino Toscano).
On Windows guests, virt-customize will use the vendor-neutral path
"C:\Program Files\Guestfs\Firstboot" to store firstboot scripts. Previously it used
"C:\Program Files\Red Hat\Firstboot". This change should be invisible to the scripts
themselves. (Cédric Bosdonnat)
On Linux guests, the firstboot services generated by virt-builder --firstboot etc have
been renamed to "guestfs-firstboot" (Pino Toscano).
There is now a common "debug" function used by all OCaml tools, replacing previous code
which did "if verbose () then printf ...".
virt-p2v copies files it needs over to the virt-v2v conversion server using scp(1),
instead of trying to send them via the shell session. This should improve reliability and
should be a completely transparent to end users.
All code in mllib is now built into a single "mllib.cma" or "mllib.cmxa" library. All
code in customize is now built into a single "customize.cma" or "customize.cmxa" library.
This simplifies the build of the OCaml tools.
lvmetad(8) is now used in the appliance when available (Pino Toscano).
"Silent rules" are used for OCaml, Java, Erlang and POD. Use "make V=1" to see the full
command lines again (Pino Toscano).
Bugs fixed
https://bugzilla.redhat.com/1364347
virt-sparsify --in-place failed with UEFI system
https://bugzilla.redhat.com/1362357
run_command runs exit handlers when execve fails (e.g. due to missing executable)
https://bugzilla.redhat.com/1362354
virt-dib failed to create image using DIB_YUM_REPO_CONF
https://bugzilla.redhat.com/1359652
Fail to inspect Windows ISO file
https://bugzilla.redhat.com/1358142
Some info will show when convert guest to libvirt by virt-v2v with parameter --quiet
https://bugzilla.redhat.com/1354335
overlay of disk images does not specify the format of the backing file
https://bugzilla.redhat.com/1352761
Virt-manager can't show OS icons of win7/win8/ubuntu guest.
https://bugzilla.redhat.com/1350363
Improve error info "remote server timeout unexpectedly waiting for password prompt"
when connect to a bogus server at p2v client
https://bugzilla.redhat.com/1348900
virt-p2v should update error prompt when 'Test connection' with a non-existing user in
conversion server
https://bugzilla.redhat.com/1345813
virt-sysprep --install always failed to install the packages specified
https://bugzilla.redhat.com/1345809
virt-customize --truncate-recursive should give an error message when specifying a no-
existing path
https://bugzilla.redhat.com/1343423
[RFE]Should give a better description about 'curl error 22' when failed using ssh
identity http url at p2v client
https://bugzilla.redhat.com/1343414
Failed SSH to conversion server by ssh identity http url at p2v client
https://bugzilla.redhat.com/1343375
[RFE] uninstall packages inside the VM
https://bugzilla.redhat.com/1342447
Ifconfig command is not supported on p2v client
https://bugzilla.redhat.com/1342398
Convert a guest from RHEL by virt-v2v but its origin info shows RHEV at rhevm
https://bugzilla.redhat.com/1342337
Should remind a warning about disk image has a partition when using virt-p2v-make-disk
https://bugzilla.redhat.com/1341984
virt-get-kernel prompts an 'invalid value' error when using --format auto
https://bugzilla.redhat.com/1341564
virt-p2v spinner should be hidden when it stops spinning
https://bugzilla.redhat.com/1340809
Testing connection timeout when input regular user of conversion server with checked
"use sudo......"button
https://bugzilla.redhat.com/1340464
[RFE] Suggestion give user a reminder for "Cancel conversion" button
https://bugzilla.redhat.com/1340407
Multiple network ports will not be aligned at p2v client
https://bugzilla.redhat.com/1338083
Update UEFI whitelist for official fedora packages
https://bugzilla.redhat.com/1337561
virt-customize --ssh-inject not applying correct file permission
https://bugzilla.redhat.com/1335671
extra quotes around UUID confuses findfs in RHEL (but not in Fedora)
https://bugzilla.redhat.com/1332025
Inspection does not parse /etc/redhat-release containing "Derived from Red Hat
Enterprise Linux 7.1 (Source)"
https://bugzilla.redhat.com/1327488
RFE: Allow p2v kernel options without p2v.server to set defaults
https://bugzilla.redhat.com/1325825
virt-v2v should prevent using multiple '-b' and '-n' option appears on the command
line
https://bugzilla.redhat.com/1321620
libguestfs: error: could not parse integer in version number: 7"
https://bugzilla.redhat.com/1321338
[1.33.16] Compilation Error: Unbound value List.sort_uniq in v2v.ml line 988,
characters 10-24:
https://bugzilla.redhat.com/1317843
`virt-builder --update` fails with: "dnf -y --best upgrade: command exited with an
error"
https://bugzilla.redhat.com/1316479
v2v cmd cannot exit and "block I/O error in device 'appliance': No space left on
device (28)" is printed when specified "-v -x"
https://bugzilla.redhat.com/1316041
virt-rescue fails, but missing error message
https://bugzilla.redhat.com/1314244
RFE: virt-p2v log window should process colour escapes and backspaces
https://bugzilla.redhat.com/1312254
virt-v2v -o libvirt doesn't preserve or use correct <graphics type="vnc|spice">
https://bugzilla.redhat.com/1309706
error: internal error: Invalid floppy device name: hdb
https://bugzilla.redhat.com/1309619
Wrong warning info "use standard VGA" shows when converting windows > 7 by virt-v2v
https://bugzilla.redhat.com/1309580
OS name of win8.1 x64 guest shows incorrect in rhevm3.6 general info
https://bugzilla.redhat.com/1308769
virt-v2v does not copy additional disks to Glance
https://bugzilla.redhat.com/1306666
Failure when disk contains an LV with activationskip=y
https://bugzilla.redhat.com/1296606
virt-v2v doesn't remove VirtualBox additions correctly because of file quoting
https://bugzilla.redhat.com/1293527
There should be a reminder to avoid user to edit a guest image by multiple tools at
the same time in guestfish man page
https://bugzilla.redhat.com/1293276
guestfish can not ll a symbolic link dir or edit a file in it
https://bugzilla.redhat.com/1278878
guestfish should be able to handle LVM thin layouts
https://bugzilla.redhat.com/1264835
ppc64le: virt-customize --install fail to detect the guest arch
https://bugzilla.redhat.com/1264332
Test that trimming in virt-v2v doesn't regress
https://bugzilla.redhat.com/1232192
Virt-v2v gives an error on a blank disk: part_get_parttype: unknown signature, of the
output: BYT;
https://bugzilla.redhat.com/1229386
virt-p2v in non-GUI mode doesn't show any conversion progress or status
https://bugzilla.redhat.com/1227599
P2V invalid password prints unexpected end of file waiting for command prompt.
https://bugzilla.redhat.com/1224795
On Ubuntu, virt-builder --install and --update cannot use the network
https://bugzilla.redhat.com/1213324
virt-v2v: warning: unknown guest operating system: windows windows 6.3 when converting
win8,win8.1,win2012,win2012R2,win10 to rhev
https://bugzilla.redhat.com/1203898
Support inspecting docker images without /etc/fstab
https://bugzilla.redhat.com/1186935
libguestfs cannot inspect recent Fedora / RHEL >= 7 when /usr is a separate partition
https://bugzilla.redhat.com/1167916
P2V: invalid conversion server prints unexpected end of file waiting for password
prompt.
https://bugzilla.redhat.com/1152825
virt-rescue --selinux can not work well, when enable selinux in the command line the
value of 'getenforce' is still Disabled in virt-rescue appliance
https://bugzilla.redhat.com/1150298
ARM 32 bit on Ubuntu: warning: cast to pointer from integer of different size
[-Wint-to-pointer-cast]
https://bugzilla.redhat.com/1089100
NetworkManager avc unlink denied for resolv.conf after using --selinux-relabel
https://bugzilla.redhat.com/983969
RFE: virt-sysprep should be SELinux-aware
https://bugzilla.redhat.com/855058
RFE: virt-p2v: display more information about storage devices
https://bugzilla.redhat.com/554829
SELinux handling could be done better.
RELEASE NOTES FOR LIBGUESTFS 1.32
These release notes only cover the differences from the previous stable/dev branch split
(1.30.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
New tools
The new virt-v2v-copy-to-local(1) tool is an ancillary tool for virt-v2v(1) allowing you
to convert source guests that virt-v2v is unable to access directly.
New features in existing tools
Virt-customize knows how to write a random seed to CirrOS (Pino Toscano).
On Fedora, virt-customize runs dnf(8) with the --best flag, ensuring it always updates to
the latest available packages.
Virt-builder now provides 32 bit Fedora templates.
Virt-builder and virt-customize --install option now works on 32 bit Fedora guests.
Previously it would try to install 64 bit packages (Jan Sedlák).
Virt-builder can now fetch cloud images using Simple Streams v1.0 metadata (Pino Toscano).
Virt-builder can now fetch openSUSE cloud images out of the box (Cédric Bosdonnat).
Virt-customize will now use stronger (SHA-512) encrypted passwords by default on openSUSE
≥ 11 (Pino Toscano).
Virt-builder will now correctly handle output filenames containing colon characters (":"),
and will create temporary files in the libguestfs cache directory instead of defaulting to
/tmp (Pino Toscano).
Virt-resize has a new --unknown-filesystems option to control what to do when asked to
resize a filesystem that libguestfs doesn't know how to resize.
Virt-v2v now has an --in-place flag/mode, allowing in-place conversion of guests (Roman
Kagan).
Virt-v2v has a --compressed option for creating compressed qcow2 output files.
Virt-v2v can now correctly get the VMware datacenter path (dcPath) from libvirt, instead
of having to calculate it using an algorithm that occasionally got the wrong answer
(Matthias Bolte, Tingting Zheng).
Virt-v2v now processes RAM sizes correctly for 64 bit guests when running on a 32 bit
host.
Language bindings
In Perl and Python programs, the "get_program_name" API now returns the true program name,
instead of the incorrect string "perl" or "python".
The Python bindings can now be compiled against a different version of libguestfs,
allowing the pip module to be built against any version of libguestfs (instead of
requiring the pip module and libguestfs to have exactly the same version).
The quality of the Ruby rdoc (documentation) has been improved (Pino Toscano).
Perl scripts no longer hard-code the location of perl in the shebang line, but use env(1)
to locate it instead (Pino Toscano).
In OCaml programs, the guestfs handle was incorrectly made into a global root, meaning it
could never be garbage collected. If you didn't call the "close" function explicitly, the
handle would not be closed until the whole program exited. This has now been fixed so
handles will be garbage collected in the usual way. This changes the API of the OCaml
function "Guestfs.event_callback". Note that non-C language bindings are not covered by
the libguestfs API/ABI guarantee, although we try hard not to change them, but in this
case it was essential in order to fix this very serious bug.
Inspection
Alpine Linux and the APK package manager, ALT Linux, Frugalware, and PLD Linux are now
recognized (Pino Toscano).
If it exists, /etc/os-release will be preferred for inspecting Linux guests (Pino
Toscano).
The correct kernel version is returned for Windows guests ≥ 10.
Documentation
The large guestfs(3) man page has been split into several separate man pages:
guestfs-hacking(1) guestfs-internals(1) guestfs-security(1). In the source tree, a new
docs directory contains this documentation.
Architectures and platforms
Libguestfs now supports ARM 64 bit platforms with vGICv3.
Security
See also guestfs-security(1).
"CVE-2015-5745"
https://bugzilla.redhat.com/1251157
This is not a vulnerability in libguestfs, but because we always give a virtio-serial
port to each guest (since that is how guest-host communication happens), an escalation
from the appliance to the host qemu process is possible. This could affect you if:
• your libguestfs program runs untrusted programs out of the guest (using
"guestfs_sh" etc), or
• another exploit was found in (for example) kernel filesystem code that allowed a
malformed filesystem to take over the appliance.
If you use sVirt to confine qemu, that would thwart some attacks.
Virt-customize permissions on .ssh, .ssh/authorized_keys
https://bugzilla.redhat.com/1260778.
Previously when asked to inject an SSH key into a guest, virt-customize (hence virt-
builder too) would create the .ssh directory and .ssh/authorized_keys file with too
broad permissions, allowing other users to read. They are now created as 0700 and
0600 respectively, which is the same as the ssh-copy-id(1) utility.
API
New APIs
"guestfs_get_identifier"
"guestfs_set_identifier"
Get/set a per-handle identifier. The main effect of this is to change trace output
from:
libguestfs: trace: foo
to:
libguestfs: trace: ID: foo
making it easier to follow traces in multi-threaded programs, or where a program uses
multiple handles (especially virt-v2v).
"guestfs_vfs_minimum_size"
Return the minimum size of a filesystem (when shrunk). This supports ext2/3/4, XFS
and btrfs, and can support other filesystem types in future (Maxim Perevedentsev).
Other API changes
"guestfs_disk_create": add "preallocation" = "off"/"metadata"/"full".
For raw, this allows "off" as a synonym for "sparse" (making it consistent with
qcow2). For qcow2, this allows "sparse" as a synonym for "off".
It also adds "full", which corresponds to fully allocated, but uses posix_fallocate(3)
for efficiency.
"guestfs_tar_in": new "xattrs", "selinux", "acl" parameters.
"guestfs_tar_out": new "xattrs", "selinux", "acl" parameters.
These extra parameters control whether extended attributes, SELinux contexts and/or
POSIX ACLs are restored from / saved to tarballs.
"guestfs_add_drive"
The existing "username" and "secret" parameters can be used to supply authentication
for iSCSI (Pino Toscano).
Build changes
The "./configure --enable-valgrind-daemon" option has been removed.
You can no longer build libguestfs on RHEL 5-era (c.2007) machines. See the "oldlinux"
branch if you need (limited) RHEL 5 support.
Virt-p2v can now be built on RHEL 6-era (c.2010) Linux distros.
OCaml ≥ 3.11 (released in 2008) is now required to build from git.
Building the Perl bindings now requires "Module::Build" (instead of
"ExtUtils::MakeMaker").
Builds should be faster (especially when incrementally rebuilding), because work was done
to reduce build times.
Both OCaml and the OCaml findlib module are required if you need to run the generator at
build time. Previously the build would have failed if findlib was not installed.
"make check" tests now run in parallel (within each test directory).
"make install" no longer installs OCaml bindtests.* files incorrectly.
"make install" can now be run twice. Previously it would fail on the second run.
"make clean" should now remove nearly every file that "make" creates.
A new "make installcheck" rule has been added, allowing the installed copy of libguestfs
to be tested.
Internals
Some effort was put into minimizing the size of the appliance, which reduces temporary
disk space and time needed by libguestfs handles.
The appliance now passes the NIC name to dhcpd, fixing hangs when running the appliance on
some distros (Cédric Bosdonnat).
OCaml "Guestfs.Errno" is now generated (Pino Toscano).
In OCaml tools, common code now handles --debug-gc, --verbose and other common options
(Roman Kagan, Pino Toscano).
The virt-v2v test harness allows us to boot the test guests at fixed dates in the past,
ensuring that Windows reactivation doesn't kick in.
There is a new internal API for reading/writing a subprocess via a pipe from library code.
Used "deheader" program to remove unused "#include" directives.
In OCaml tools, the "Char" and "String" modules now implicitly reference the
"Common_utils.Char" and "Common_utils.String" modules (instead of the ones from stdlib).
The "Common_utils" modules contain a number of extra char/string utility functions, and
also hide some unsafe functions in stdlib.
Many more virt-v2v tests will now be run even if you don't have rhsrvany and virtio-win
installed (Roman Kagan).
The huge configure.ac file has been split into several smaller files called
m4/guestfs_*.m4.
The old tests/data and tests/guests directories have been moved to test-data/. This new
top level directory carries all test data which is common, large and/or shared between
multiple tests.
There is a new top level website/ directory containing the public http://libguestfs.org
website (or most of it).
The fuzz testing of inspection (tests/fuzz) has been removed.
Virt-p2v now saves the source physical machine dmesg output into the conversion server
debug directory, making it simpler to debug cases of missing drivers, firmware etc.
Bugs fixed
https://bugzilla.redhat.com/1294956
set-label returns wrong error message when set the ext3/ext4 filesystem label
https://bugzilla.redhat.com/1288733
Add a Fedora 23 32-bit base image for virt-builder
https://bugzilla.redhat.com/1288201
virt-builder writes temporary files to /tmp
https://bugzilla.redhat.com/1285847
virt-resize does not copy logical partitions
https://bugzilla.redhat.com/1281578
virt-inspector returns version 6.3 for win10 images (should return 10.0)
https://bugzilla.redhat.com/1281577
virt-inspector --xpath segfault on attribute get
https://bugzilla.redhat.com/1280029
libguestfs can run commands with stdin not open (or worse still, connected to
arbitrary guest-chosen random devices)
https://bugzilla.redhat.com/1279273
About compression option for qcow2
https://bugzilla.redhat.com/1278878
guestfish should be able to handle LVM thin layouts
https://bugzilla.redhat.com/1278382
DNF python programming error when run from virt-builder
https://bugzilla.redhat.com/1278371
inspection returns arch="unknown" for Windows guest if file command is not installed
https://bugzilla.redhat.com/1277274
Document permissions needed for non-admin users to use virt-v2v
https://bugzilla.redhat.com/1277122
RFE: virt-sparsify: make '--in-place' sparsification safe to abort (gracefully or
ungracefully)
https://bugzilla.redhat.com/1277074
Virt-p2v client shouldn't present the vdsm option because it's not usable
https://bugzilla.redhat.com/1276540
virt-v2v fails to convert Windows raw image: error "device name is not a partition"
https://bugzilla.redhat.com/1275806
virt-builder: error: [file] is not a regular file in the guest
https://bugzilla.redhat.com/1270011
Simplestreams test fails: virt-builder: error: the value for the key 'size' is not an
integer
https://bugzilla.redhat.com/1267032
guestfish copy-in command behaves oddly/unexpectedly with wildcards
https://bugzilla.redhat.com/1262983
python: Cannot compile pip module if installed libguestfs != pip guestfs version
https://bugzilla.redhat.com/1262127
Better diagnostic message when virbr0 doesn't exist
https://bugzilla.redhat.com/1261436
No warning shows when convert a win7 guest with AVG AntiVirus installed
https://bugzilla.redhat.com/1260778
virt-builder --ssh-inject doesn't set proper permissions on created files
https://bugzilla.redhat.com/1260689
RFE: V2V to check and warn user to disable group policy and anti virus on Windows
guests
https://bugzilla.redhat.com/1260590
Wrong graphics protocal and video type set for guest after convert to rhev 3.6 by
virt-v2v
https://bugzilla.redhat.com/1258342
extra slashes in vcenter URL confuses virt-v2v
https://bugzilla.redhat.com/1257895
[RHEV][V2V] virt-v2v ignores NIC if interface source/@network or source/@bridge is an
empty string
https://bugzilla.redhat.com/1256405
virt-builder created Fedora 22 32bit disk image cannot be updated
https://bugzilla.redhat.com/1256222
virt-p2v no GUI mode:error opening control connection to $ip:22:unexpected …rompt
https://bugzilla.redhat.com/1251909
Option -oa preallocated -of qcow2 of virt-v2v didn't work efficiently
https://bugzilla.redhat.com/1250715
v2v: spaces need to be escaped as %20 in paths
https://bugzilla.redhat.com/1248678
Close all incoming ports on virt-p2v ISO
https://bugzilla.redhat.com/1246882
man virt-customize shows synopsis twice
https://bugzilla.redhat.com/1242853
mount-loop failed to setup loop device: No such file or directory
https://bugzilla.redhat.com/1237136
BUG: unable to handle kernel NULL pointer dereference at <addr> in function
__blkg_lookup
https://bugzilla.redhat.com/1230412
virt-v2v should ignore bogus kernel entries in grub config
https://bugzilla.redhat.com/1229119
Unrelated info in fstab makes virt-v2v fail with unclear error info
https://bugzilla.redhat.com/1227609
virt-p2v: Using "Back" button causes output list to be repopulated multiple times
https://bugzilla.redhat.com/1225789
Wrong video driver is installed for rhel5.11 guest after conversion to libvirt
https://bugzilla.redhat.com/1204131
RFE: virt-builder creates qcow v3 images, add build option for qcow v2
https://bugzilla.redhat.com/1176801
File /etc/sysconfig/kernel isn't updated when convert XenPV guest with regular kernel
installed
https://bugzilla.redhat.com/1174551
"lstatnslist" and "lstatlist" don't give an error if the API is used wrongly
https://bugzilla.redhat.com/1168223
koji spin-livecd cannot build a working live CD
https://bugzilla.redhat.com/1165785
mount-loop command fails: mount failed: Unknown error -1
https://bugzilla.redhat.com/1164708
set-label can only set <=127 bytes for btrfs and <=126 bytes for ntfs filesystem which
not meet the help message. Also for ntfs it should give a warning message when the
length >128 bytes
https://bugzilla.redhat.com/1020216
libvirt fails to shut down domain: could not destroy libvirt domain: Requested
operation is not valid: domain is not running
https://bugzilla.redhat.com/1011907
mount-loop failed to setup loop device: No such file or directory
RELEASE NOTES FOR LIBGUESTFS 1.30
These release notes only cover the differences from the previous stable/dev branch split
(1.28.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
New tools
virt-dib(1) is a secure and safe alternative to the OpenStack "diskimage-builder" tool.
It is compatible with diskimage-builder elements. (Pino Toscano)
virt-get-kernel(1) extracts the kernel and ramdisk from a disk image. Previously this
functionality was part of virt-builder(1), but the new tool is more featureful. (Pino
Toscano)
New features in existing tools
virt-v2v(1) -i ova mode can now read a wider range of OVA files, and also unpacked files
(directories).
virt-v2v now securely passes options to curl, so passwords, cookies and so on cannot be
seen by users with shell access on the same machine.
virt-v2v has a new --password-file option to allow you to securely pass in a password, and
to avoid an interactive prompt.
virt-v2v disables Windows autoreboot, making debugging conversion failures on Windows
easier.
virt-v2v now comes with an extensive external test suite. See virt-v2v-test-harness(1).
virt-v2v allows virtio drivers to come from any location (Roman Kagan), and drivers can be
read directly from the virtio ISO.
virt-v2v supports conversion of Windows ≥ 8. Note this is experimental, and possibly
broken. Use with caution.
virt-v2v can now convert UEFI guests.
virt-p2v(1) adds a network configuration dialog.
virt-p2v now has "p2v.pre", "p2v.post" and "p2v.fail" triggers, allowing arbitrary scripts
for preparing the host for conversion and tidying up post-conversion.
virt-p2v now uses the more advanced metacity window manager (instead of matchbox).
virt-sysprep(1) will remove "/var/spool/mail/username" for non-root accounts (Hu Tao).
virt-customize(1), virt-builder(1) and virt-sysprep have the following new options:
--commands-from-file
allow long lists of commands to be read from a file instead of from the command line
(Pino Toscano)
--copy
copy files inside the guest (Maros Zatko)
--copy-in
copy host files recursively into the guest (Pino Toscano)
--move
move files inside the guest (Maros Zatko)
--ssh-inject
inject SSH keys into a guest (Pino Toscano)
--sm-attach
--sm-credentials
--sm-register
--sm-remove
--sm-unregister
register and unregister a guest from subscription-manager (Pino Toscano)
--touch
touch a file in the guest (Pino Toscano)
--truncate
--truncate-recursive
truncate files (Maros Zatko)
Improvements to virt-customize firstboot support. In particular, Windows firstboot should
work as well as Linux (Roman Kagan).
virt-df(1) can now use PolicyKit, SASL and other authentication methods when getting the
list of domains from libvirt.
Improvements to guestfish bash completion (Pino Toscano).
Bash completion now completes short options as well as long options (Pino Toscano).
guestfish(1) now displays a command synopsis if the number of parameters given to a
command is wrong (Hu Tao).
virt-builder now supports Red Hat Enterprise Linux versions back to RHEL 3.
virt-builder supports SUSE guests using zypper (Cédric Bosdonnat).
Language bindings
The Java bindings now include validated Javadoc, and other improvements (Pino Toscano).
Multiple fixes and improvements to the PHP bindings (Pino Toscano).
Inspection
Inspection can now get icons from RHEL 7 and CentOS 7.
/etc/favicon.png is now allowed to be a symbolic link.
For RPM-based guests, inspection now returns RPM Epoch fields.
Debian packages now have separate Epoch and Version fields (Nikos Skalkotos).
OpenBSD detection added, FreeBSD and NetBSD added as separate "distros", and other BSD
inspection improvements and bug fixes (Nikos Skalkotos).
CoreOS detection added (Nikos Skalkotos).
The package manager in Fedora ≥ 22 is "dnf".
ReactOS guests can be inspected (Maros Zatko).
Add support for UEFI guests.
Inspection now works when kernel modules are gzip or xz compressed (Pino Toscano).
Inspection now recognizes ppc64 and ppc64le guests (Maros Zatko).
Inspection lists the installed applications on Archlinux guests (Nikos Skalkotos).
Architectures and platforms
PPC64 (POWER7) and PPC64LE (POWER8) architectures are now much better supported, and
should work out of the box.
For aarch64, we use AAVMF (an open source UEFI implementation based on OVMF) if available
to run the appliance.
For armv7, we now use the -M virt machine type by default.
There is better support for compiling on non-Linux platforms (Pino Toscano, Margaret
Lewicka).
Libguestfs should now work on MIPS 32 bit little endian ("mipsel"). I have not been able
to try 64 bit or big endian.
Security
CVE-2014-8484
CVE-2014-8485
Libguestfs previously ran the strings(1) utility on untrusted files. Strings could
parse BFD headers in an unsafe way, leading to possible arbitrary code execution.
Libguestfs now runs strings with a flag to ensure it does not try to parse BFD
headers. This could have led to exploitation of the libguestfs appliance, but since
libguestfs further constrains the appliance through virtualization, SELinux and other
techniques, it was unlikely to have caused any privilege escalation on the host.
XPath injection in virt-v2v
One possible XPath injection vulnerability was fixed in virt-v2v. This might have
allowed a malicious guest which was being converted by virt-v2v to construct an
arbitrary XPath expression which would have been evaluated on the host (by the libxml2
library linked to the virt-v2v binary). It is not clear what the effects of this
might be.
For further information, see upstream commit
https://github.com/libguestfs/libguestfs/commit/6c6ce85f94c36803fe2db35a98db436bff0c14b0
Denial of service problems when using "qemu-img info"
When using the American Fuzzy Lop fuzzer ("afl-fuzz") on the "qemu-img info" command,
Richard W.M. Jones found that certain files can cause the "qemu-img" program to use
lots of memory and time (for example 6GB of heap and 14 seconds of CPU time on a fast
Intel processor), and in some cases to crash. Since libguestfs may run "qemu-img
info" on disk images to find out what they contain, this transitively could cause
libguestfs to hang or consume lots of memory.
Libguestfs was modified so that it uses resource limits to limit the space and time
used by "qemu-img info", to avoid this problem. If a malicious user tries to pass one
of these disk images to libguestfs, "qemu-img" will crash and the crash is reported
back to libguestfs callers as an error message.
API
New APIs
"guestfs_add_libvirt_dom"
This exposes a previously private API that allows you to pass a "virDomainPtr" object
directly from libvirt to libguestfs.
"guestfs_blockdev_setra"
Adjust readahead parameter for devices. See "blockdev --setra" command.
"guestfs_btrfs_balance"
"guestfs_btrfs_balance_cancel"
"guestfs_btrfs_balance_pause"
"guestfs_btrfs_balance_resume"
"guestfs_btrfs_balance_status"
Balance support for Btrfs filesystems (Hu Tao).
"guestfs_btrfs_filesystem_defragment"
Filesystem defragmentation support for Btrfs filesystems (Hu Tao).
"guestfs_btrfs_image"
Create an image of a Btrfs filesystem (Chen Hanxiao)
"guestfs_btrfs_qgroup_assign"
"guestfs_btrfs_qgroup_create"
"guestfs_btrfs_qgroup_destroy"
"guestfs_btrfs_qgroup_limit"
"guestfs_btrfs_qgroup_remove"
"guestfs_btrfs_qgroup_show"
"guestfs_btrfs_quota_enable"
"guestfs_btrfs_quota_rescan"
Quote support for Btrfs filesystems (Hu Tao).
"guestfs_btrfs_rescue_chunk_recover"
Scan and recover the chunk tree in Btrfs filesystems (Hu Tao).
"guestfs_btrfs_rescue_super_recover"
Restore superblocks in Btrfs filesystems (Hu Tao).
"guestfs_btrfs_replace"
Replace a device in a Btrfs filesystem (Cao Jin).
"guestfs_btrfs_scrub"
"guestfs_btrfs_scrub_cancel"
"guestfs_btrfs_scrub_resume"
"guestfs_btrfs_scrub_status"
Scrub a Btrfs filesystem (Hu Tao).
"guestfs_btrfs_subvolume_get_default"
Get the default subvolume of a Btrfs filesystem (Hu Tao).
"guestfs_btrfs_subvolume_show"
List detailed information about the subvolume of a Btrfs filesystem (Hu Tao).
"guestfs_btrfstune_enable_extended_inode_refs"
"guestfs_btrfstune_enable_skinny_metadata_extent_refs"
"guestfs_btrfstune_seeding"
Various tuning parameters for Btrfs filesystems (Chen Hanxiao).
"guestfs_c_pointer"
Return the C pointer to the underlying "guestfs_h *". This allows interworking of
libguestfs bindings with bindings from other libraries. For further information see
https://bugzilla.redhat.com/1075164
"guestfs_copy_in"
"guestfs_copy_out"
Flexible APIs for recursively copying directories of files between the host and guest
filesystem. Previously these were available only as guestfish commands, but now any
API users can call them (Pino Toscano).
"guestfs_part_get_gpt_guid"
"guestfs_part_set_gpt_guid"
Get and set the GPT per-partition GUID.
"guestfs_part_get_mbr_part_type"
Get MBR partition type (Chen Hanxiao).
"guestfs_set_uuid_random"
Set the UUID of a filesystem to a randomly generated value; supported filesystems
currently are ext2/3/4, XFS, Btrfs, and swap partitions. (Chen Hanxiao).
Other API changes
"guestfs_disk_create" can now use VMDK files as backing files.
"guestfs_btrfs_subvolume_snapshot" takes extra optional parameters (all added by Hu Tao):
"ro"
for creating a read-only Btrfs snapshot
"qgroupid"
for adding the snapshot to a qgroup
"guestfs_btrfs_subvolume_create" can also take the optional "qgroupid" parameter (Hu Tao).
"guestfs_set_uuid" can set UUID of swap partitions, Btrfs (Hu Tao, Chen Hanxiao).
"guestfs_copy_device_to_file" and "guestfs_copy_file_to_file" have a new optional "append"
parameter, allowing you to append to the output file instead of truncating it.
"guestfs_mkfs" has a new optional "label" parameter to set the initial label of the new
filesystem (Pino Toscano).
"guestfs_set_label" and "guestfs_set_uuid" now set "ENOTSUP" as errno when there is no
implemented support for the filesystem of the specified mountable (Chen Hanxiao).
Environment variables now let you write "LIBGUESTFS_DEBUG=true", "LIBGUESTFS_DEBUG=0" and
so on.
All "guestfs_sfdisk*" APIs have been deprecated. Because sfdisk(8) was rewritten,
incompatibly, upstream, we don't recommend using these APIs in future code. Use the
"guestfs_part*" APIs as replacements.
APIs such as "guestfs_download" do not truncate /dev/stdout or /dev/stderr when writing to
them, meaning that if you redirect stdout or stderr to a file, the file is no longer
truncated.
Build changes
The daemon no longer uses its own separate copy of gnulib. Instead it shares a single
copy with the library.
OCaml .annot files are now created, so IDEs and editors like emacs and vi can browse OCaml
types in the source code.
Various fixes to allow different host/appliance architecture builds (Pino Toscano).
Automake is now used directly to build all the OCaml programs, instead of ad hoc Makefile
rules. One side effect of this is to enable warnings in all the C code used by OCaml
programs.
"-fno-strict-overflow" is used throughout the build to avoid dubious GCC optimizations.
Multiple cleanups to support GCC 5.
OCaml OUnit2 is needed to run some OCaml tests.
Creating a statically linked libguestfs.a should work again.
The src/api-support subdirectory and its scripts are no longer used. Instead we store in
the generator/actions.ml when the API was added to libguestfs.
Internationalization
The translation service has changed from Transifex to Zanata.
Many more translations are available now, for both library and tools messages and
documentation.
Internals
In all OCaml tools, there are now common "error", "warning", "info" functions, and common
way to set and get the --quiet, -x (trace) and -v (verbose) flags, and colour highlighting
used consistently.
"COMPILE_REGEXP" macros are used to simplify PCRE constructors and destructors.
In the generator, "Pointer" arguments have finally been implemented.
Internal identifiers no longer use double and triple underscores (eg.
"guestfs___program_name"). These identifiers are invalid for C99 and C++ programs,
although compilers would accept them.
The daemon no longer parses "guestfs_*" options from /proc/cmdline. Instead it only takes
ordinary command line options. The appliance init script turns /proc/cmdline into daemon
command line options.
The tests can now run the daemon as a "captive process", allowing it to be run directly on
the host. The main advantage of this is we can run valgrind directly on the daemon during
testing.
Bugs fixed
https://bugzilla.redhat.com/1239053
virt-v2v error reporting when grub.conf cannot be parsed by Augeas
https://bugzilla.redhat.com/1238053
v2v:Duplicate disk target set when convert guest with cdrom attached
https://bugzilla.redhat.com/1237869
Virtio drivers are not installed for windows 2008 guests by virt-v2v
https://bugzilla.redhat.com/1234351
virt-v2v Support for Fedora virtio-win drivers
https://bugzilla.redhat.com/1232192
Virt-v2v gives an error on a blank disk: part_get_parttype: unknown signature, of the
output: BYT;
https://bugzilla.redhat.com/1229385
virt-p2v in kernel command line mode should power off the machine after conversion
https://bugzilla.redhat.com/1229340
virt-p2v no GUI mode appends \n to the final command line parameter
https://bugzilla.redhat.com/1229305
virt-sysprep at cleanup deletes /var/spool/at/.SEQ which results in failing at
https://bugzilla.redhat.com/1226794
"Doing conversion……" still shows after cancel the conversion from virt-p2v client
https://bugzilla.redhat.com/1215042
Memory leak in virNetSocketNewConnectUNIX
https://bugzilla.redhat.com/1213324
virt-v2v: warning: unknown guest operating system: windows windows 6.3 when converting
win8,win8.1,win2012,win2012R2 to rhev
https://bugzilla.redhat.com/1213247
virt tools should print the same format of version string
https://bugzilla.redhat.com/1212808
RFE: virt-builder --touch
https://bugzilla.redhat.com/1212807
virt-builder --selinux-relabel flag fails on cross-architecture builds
https://bugzilla.redhat.com/1212680
RFE: virt-inspector xpath query should output a neat format of the query element
https://bugzilla.redhat.com/1212152
virt-builder firstboot-command fails: File name too long
https://bugzilla.redhat.com/1211996
virt-inspector gives incorrect arch (ppc64) for ppc64le guest
https://bugzilla.redhat.com/1203817
RFE: virt-customize --move and --copy
https://bugzilla.redhat.com/1201526
index-parser can't parse systemd mount files properly
https://bugzilla.redhat.com/1196101
virt-builder --upload option doesn't work to a FAT partition
https://bugzilla.redhat.com/1196100
virt-builder -x option on its own does not enable tracing
https://bugzilla.redhat.com/1195204
`virt-builder` should create $HOME/.cache directory if it already doesn't exist
https://bugzilla.redhat.com/1193237
Virt-builder fingerprint is required even when no check desired
https://bugzilla.redhat.com/1189284
virt-resize should preserve GPT partition UUIDs, else EFI guests become unbootable
https://bugzilla.redhat.com/1188866
Performance regression in virt-builder when uncompressing image
https://bugzilla.redhat.com/1186800
virt-v2v should support gzip format ova as input
https://bugzilla.redhat.com/1185561
virt-sparsify should ignore read-only LVs
https://bugzilla.redhat.com/1182463
"mknod-b", "mknod-c", and "mkfifo" do not strip non-permissions bits from "mode"
https://bugzilla.redhat.com/1176493
virt-v2v ignores sound device when convert xen guest to local kvm
https://bugzilla.redhat.com/1175676
Typo error in 'help ping-daemon'
https://bugzilla.redhat.com/1175196
"parse-environment" and "parse-environment-list" fail to parse "LIBGUESTFS_TRACE = 0"
https://bugzilla.redhat.com/1175035
"is-blockdev"/"is-blockdev-opts" fail to detect "/dev/sda"
https://bugzilla.redhat.com/1174280
RFE: Allow v2v conversion of Oracle Linux 5.8 VMware VM
https://bugzilla.redhat.com/1174200
New virt-v2v failure: CURL: Error opening file: NSS: client certificate not found
(nickname not specified): Invalid argument
https://bugzilla.redhat.com/1174123
Graphics password disappear after conversion of virt-v2v
https://bugzilla.redhat.com/1174073
The listen address for vnc is changed after conversion by virt-v2v
https://bugzilla.redhat.com/1171666
inspection thinks EFI partition is a separate operating system
https://bugzilla.redhat.com/1171130
virt-v2v conversion of RHEL 3 guest fails with: All of your loopback devices are in
use
https://bugzilla.redhat.com/1170685
Conversion of RHEL 4 guest fails: rpm -ql 1:kernel-utils-2.4-23.el4: virt-v2v: error:
libguestfs error: command_lines:
https://bugzilla.redhat.com/1170073
virt-v2v picks debug kernels over non-debug kernels when versions are equal
https://bugzilla.redhat.com/1169045
virt-sparsify: libguestfs error: qemu-img info: 'virtual-size' is not representable as
a 64 bit integer
https://bugzilla.redhat.com/1169015
virt-resize --expand fails on ubuntu-14.04.img image (regression)
https://bugzilla.redhat.com/1168144
warning: fstrim: fstrim: /sysroot/: FITRIM ioctl failed: Operation not supported
(ignored) when convert win2003 guest from xen server
https://bugzilla.redhat.com/1167921
p2v: No Network Connection dialog
https://bugzilla.redhat.com/1167774
virt-p2v fails with error:"nbd.c:nbd_receive_negotiate():L501: read failed"
https://bugzilla.redhat.com/1167623
Remove "If reporting bugs, run virt-v2v with debugging enabled .." message when
running virt-p2v
https://bugzilla.redhat.com/1167601
"Conversion was successful" pop out even virt-p2v fails
https://bugzilla.redhat.com/1167302
virt-v2v: warning: ova hard disk has no parent controller when convert from a ova file
https://bugzilla.redhat.com/1166618
virt-resize should give out the detail warning info to let customers know what's going
wrong
https://bugzilla.redhat.com/1165975
File "/boot/grub2/device.map" showing is not right after converting a rhel7 guest from
esx server
https://bugzilla.redhat.com/1165785
mount-loop command fails: mount failed: Unknown error -1
https://bugzilla.redhat.com/1165569
Disable "cancel conversion" button after virt-p2v conversion finished
https://bugzilla.redhat.com/1165564
Provide Reboot/Shutdown button after virt-p2v
https://bugzilla.redhat.com/1164853
Booting in qemu found no volume groups and failed checking the filesystems
https://bugzilla.redhat.com/1164732
The description of 'help append' is not accurately, it add the kernel options to
libguestfs appliance not the guest kernel
https://bugzilla.redhat.com/1164697
typo errors in man pages
https://bugzilla.redhat.com/1164619
Inspect-get-icon failed on RHEL7 guest
https://bugzilla.redhat.com/1162966
xfs should also give a warning out to let customer know the limitation
https://bugzilla.redhat.com/1161575
Failed to import guest with "rtl8139" nic to openstack server after converted by v2v
https://bugzilla.redhat.com/1159651
virt-sysprep firstboot script is not deleted if it reboot a RHEL 7 guest
https://bugzilla.redhat.com/1159258
esx win2008 32 bit guest fail to load after conversion because the firmware isn't ACPI
compatible
https://bugzilla.redhat.com/1159016
libvirt backend does not set RBD password
https://bugzilla.redhat.com/1158526
Use password file instead of process interaction
https://bugzilla.redhat.com/1157679
virt-p2v-make-disk should add firmwares
https://bugzilla.redhat.com/1156449
libguestfs FTBFS on f21 ppc64le
https://bugzilla.redhat.com/1156301
virt-inspector support adding a remote disk, but in its man page -a URI / --add URI is
missing
https://bugzilla.redhat.com/1155121
Virt-v2v will fail when using relative path for -i ova
https://bugzilla.redhat.com/1153844
Redundancy whitespace at the end of directory name when use <TAB> to complete the
directory name in guestfish with a xfs filesystem in guest
https://bugzilla.redhat.com/1153589
virt-v2v will hang when converting esx guest before disk copy phase
https://bugzilla.redhat.com/1152998
virt-v2v / qemu-img fails on ova image
https://bugzilla.redhat.com/1151910
virt-ls should remove '/' in the output when specify the directory name as /etc/
https://bugzilla.redhat.com/1151900
Should also add a field for directory files when run virt-ls with --csv option
https://bugzilla.redhat.com/1151033
virt-v2v conversions from VMware vCenter server run slowly
https://bugzilla.redhat.com/1146832
virt-v2v fail to convert guest with disk type volume
https://bugzilla.redhat.com/1146007
Input/output error during conversion of esx guest.
https://bugzilla.redhat.com/1135585
[RFE] virt-builder should support copying in a directory/list of files
https://bugzilla.redhat.com/1089566
[abrt] livecd-tools: kickstart.py:276:apply:IOError: [Errno 2] No such file or
directory:
'/run/media/jones/2tp001data/createlive/temp/imgcreate-_dX8Us/install_root/etc/rpm/macros.imgcreate'
https://bugzilla.redhat.com/1079625
virt-sparsify fails if a btrfs filesystem contains readonly snapshots
https://bugzilla.redhat.com/1075164
RFE: allow passing in a pre-opened libvirt connection from python
https://bugzilla.redhat.com/912499
Security context on image file gets reset
https://bugzilla.redhat.com/889082
[RFE] virt-v2v should check whether guest with same name exist on target first then
transfer the disk
https://bugzilla.redhat.com/855059
RFE: virt-p2v: display more information about network devices such as topology,
bonding, etc.
https://bugzilla.redhat.com/823758
p2v client should have largest number restrictions for CPU and Memory settings
https://bugzilla.redhat.com/709327
hivex cannot read registry hives from ReactOS
https://bugzilla.redhat.com/709326
virt-inspector cannot detect ReactOS
https://bugzilla.redhat.com/119673
installation via NFS doesn't seem to work
RELEASE NOTES FOR LIBGUESTFS 1.28
These release notes only cover the differences from the previous stable/dev branch split
(1.26.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
Tools
virt-v2v(1) and virt-p2v(1) are tools for converting from foreign hypervisors (such as
VMware or Xen) or physical machines, to KVM. These tools were previously a separate
project. The code for both tools has been integrated into the libguestfs tree. As part
of the refactoring, virt-p2v has been rewritten (from Ruby, now C), and virt-v2v now uses
several modern features of qemu which make it run many times faster than before.
virt-v2v(1) can import from: VMware vCenter, VMware OVA files, local disk files, libvirt,
RHEL 5 Xen. It can output to: oVirt or Red Hat Enterprise Virtualization (RHEV-M),
OpenStack Glance, libvirt, qemu, local disk files.
virt-log(1) is a new tool for listing log files from guests. It supports a variety of
guests including Linux traditional, Linux using journal, and Windows event log.
virt-builder(1) has a new "--machine-readable" option to make it simpler to consume virt-
builder from other programs.
New virt-builder(1) and virt-customize(1) --chmod option.
virt-sysprep(1) will now remove: systemd journals, anaconda logs, lightdm logs, debian-
installer files, apt logs, exim logs, ConsoleKit logs, firewalld logs, grubby logs,
proftpd logs, libvirt/libxml logs, and several other log files. The virt-sysprep
"user-account" operation is now able to remove or keep particular user accounts. (Pino
Toscano).
New guestmount(1) --fd option, allowing you to run guestmount captive under another
process.
virt-sparsify(1) has a new --tmp option allowing you to precisely control where temporary
files are stored.
virt-sparsify(1) can now write to a block device.
virt-customize(1) and virt-sysprep(1) now support adding firstboot scripts to Windows
guests.
virt-cat(1), virt-edit(1), virt-ls(1) now support the -m option, allowing you to override
automatic inspection of guests and instead specify where to mount partitions (Pino
Toscano).
The virt tools now have coloured output: green for OK, red for errors, blue for warnings.
Language bindings
You can build a Python distribution using "make -C python sdist"
Ruby bindings have switched from "Test::Unit" to "MiniTest".
The Java bindings are now compatible with OpenJDK 8 (Pino Toscano).
Inspection
Oracle Linux is returned as "oraclelinux" (Nikos Skalkotos).
Linux guests which do not have /etc/fstab can now be handled (Pino Toscano).
Minix is returned as "minix" (Pino Toscano).
Architectures
Aarch64 (64 bit ARM) support has been added.
Inspection and the "guestfs_file_architecture" call can now recognize arm (32 bit) and
aarch64 guests.
Security
CVE-2014-0191 Network usage and entity resolution in XML parsing
Libguestfs previously used unsafe libxml2 APIs for parsing libvirt XML. These APIs
defaulted to allowing network connections to be made when certain XML documents were
presented. Using a malformed XML document it was also possible to exhaust all CPU,
memory or file descriptors on the machine.
Since the libvirt XML comes from a trusted source (the libvirt daemon) it is not
thought that this could have been exploitable.
This was fixed in libguestfs ≥ 1.27.9 and the fix was backported to stable versions ≥
1.26.2, ≥ 1.24.9, ≥ 1.22.10 and ≥ 1.20.13. (Thanks: Dan Berrange, Pino Toscano).
Shellshock (bash CVE-2014-6271)
This bash bug indirectly affects libguestfs. For more information see:
https://www.redhat.com/archives/libguestfs/2014-September/msg00252.html
API
New APIs
"guestfs_clear_backend_setting"
"guestfs_get_backend_setting"
"guestfs_set_backend_setting"
Use these APIs to set individual backend settings.
"guestfs_cpio_out"
Convert a directory within the disk image to cpio format.
"guestfs_journal_get_realtime_usec"
Fetch precise journal times, see sd_journal_get_realtime_usec(3).
"guestfs_lstatns"
"guestfs_lstatnslist"
"guestfs_statns"
Enhanced versions of "guestfs_lstat", "guestfs_lstatlist", "guestfs_stat" which return
nanosecond timestamps.
Build changes
Libguestfs can now be built with qemu 2.x.
Add support for packaging the appliance on Mageia (Joseph Wang, Thierry Vignaud).
Augeas is now a required dependency.
Flex and bison are now required dependencies.
Internals
User-Mode Linux (UML) is no longer a supported backend (although still available). It
will be supported again once someone steps in and fixes various regressions and brokenness
in the UML (Linux) kernel.
You can now connect gdb to qemu by specifying "LIBGUESTFS_BACKEND_SETTINGS=gdb"
Serial BIOS (sgabios) is now used by the libvirt backend (on x86 only) so that we see
early BIOS messages.
For the OCaml virt tools, exceptions are now handled and printed by a common function.
A GCC warning about large stack frames is now enabled by default. Several places that
used large arrays and structures on the stack have been fixed.
There is now a test for booting the appliance repeatedly. Useful for finding kernel
leaks. See: tests/qemu/qemu-boot.c
There is a test for testing the speed of various qemu features such as virtio-serial
uploads and block device writes. See: tests/qemu/qemu-speed-test.c
GCC warnings are now enabled for OCaml-C bindings in the OCaml virt tools.
The code for editing files used by virt-edit(1), guestfish(1) "edit" command,
virt-customize(1) --edit option and more is now shared between all these utilities (thanks
Pino Toscano).
The FUSE tests were rewritten in C to ensure finer control over how system calls are
tested.
The update-bugs.sh script has been fixed so it should no longer create an empty "BUGS"
file if the Bugzilla server is unavailable.
The virt-resize(1) tests now use a stochastic method to ensure much deeper and broader
testing.
When the network is enabled, the appliance now uses DHCP to acquire an IP address.
If libvirt is being used then the appliance will connect to "virbr0" (can be overridden by
setting "LIBGUESTFS_BACKEND_SETTINGS=network_bridge=<some_bridge>"). This enables full-
featured network connections, with working ICMP, ping and so on.
Bugs fixed
https://bugzilla.redhat.com/1153515
empty (but set) LIBGUESTFS_BACKEND prints libguestfs: error: invalid backend:
https://bugzilla.redhat.com/1151766
libguestfs-bash-completion package contains file
/usr/share/bash-completion/completions/virt-log, but no _virt_log() function in that
file
https://bugzilla.redhat.com/1151738
typo error in man page of virt-edit
https://bugzilla.redhat.com/1151033
virt-v2v conversions from VMware vCenter server run slowly
https://bugzilla.redhat.com/1150880
virt-v2v: warning: display <graphics type='sdl'> was ignored when converting rhel5
guest with sdl graphics
https://bugzilla.redhat.com/1150867
'copy-file-to-file /src /dest' create file /dest even if command 'copy-file-to-file
/src /dest' failed
https://bugzilla.redhat.com/1150815
Can not find "RECURSIVE LONG LISTING" in 'man virt-diff'
https://bugzilla.redhat.com/1150701
virt-v2v does not fstrim data disks and non-mounted filesystems
https://bugzilla.redhat.com/1150475
Exporting 2+ disk guest to RHEV, only one disk shows after import
https://bugzilla.redhat.com/1148355
virt-filesystems: incorrect LVM vg name when listing Fedora 21 Alpha Atomic image
filesystems
https://bugzilla.redhat.com/1148072
Option missing --no-selinux-relabel
https://bugzilla.redhat.com/1148012
RFE: Allow qemu-bridge-helper to be used to implement guestfs_set_network
https://bugzilla.redhat.com/1146815
virt-v2v prints warning: /files/etc/fstab/8/spec references unknown device "cdrom"
https://bugzilla.redhat.com/1146275
regression setting root password with virt-builder/virt-customize
https://bugzilla.redhat.com/1146017
virt-v2v -v -x during windows guest conversion will hang at hivex: hivex_open: used
block id ……
https://bugzilla.redhat.com/1145995
Improve the error info when converting windows guest with unclean file system
https://bugzilla.redhat.com/1145916
virt-v2v fails to convert win7 guest
https://bugzilla.redhat.com/1144891
RFE: stat calls do not return nanosecond timestamps
https://bugzilla.redhat.com/1144766
futimens() is a no-op via guestmount
https://bugzilla.redhat.com/1144201
guestfish can not restore terminal's output colour when exit guestfish, if the
terminal's background colour is black then it will make a inconvenient
https://bugzilla.redhat.com/1143949
virt-customize option '--password-crypto' do not work
https://bugzilla.redhat.com/1143887
Warning shows when converting guests to rhev:chown: changing ownership of
‘/tmp/v2v.u48xag/*.ovf’: Invalid argument
https://bugzilla.redhat.com/1143883
warning shows when converting rhel7 guest:virt-v2v:could not update grub2 console:
aug_get: no matching node (ignored)
https://bugzilla.redhat.com/1143866
virt-v2v fails with error: cannot open Packages index using db5
https://bugzilla.redhat.com/1142416
part-get-name give 'libguestfs: error: part_get_name: parted does not support the
machine output (-m)' error message when run 'part-get-name /dev/sda 1'
https://bugzilla.redhat.com/1142186
virt-sysprep option '--mount-options' don't work well
https://bugzilla.redhat.com/1142158
Illegal command 'part-get-name /dev/sda1 1' cause libguestfs appliance crashed
https://bugzilla.redhat.com/1142004
virt-v2v prints warning:WARNING:/files/boot/grub/device.map references unknown device
"xvda"
https://bugzilla.redhat.com/1141723
virt-v2v: error: disk sda has no defined format shows when converting xen hvm guest
https://bugzilla.redhat.com/1141680
[RFE] virt-v2 should support convert a domain with using domain's UUID instead of
domain name
https://bugzilla.redhat.com/1141631
[RFE] virt-v2 should support convert a guest to a dir-pool with using pool's uuid
https://bugzilla.redhat.com/1141157
virt-sysprep option '--user-accounts' don't work well
https://bugzilla.redhat.com/1141145
virt-v2v fails to convert xen pv guests.
https://bugzilla.redhat.com/1141113
virt-v2v fails to convert esx guests
https://bugzilla.redhat.com/1140946
qemu-img shows error message for backing file twice
https://bugzilla.redhat.com/1140894
No error messages output if append '--format qcow2' after '-a guest.img', guest.img is
a raw format image file
https://bugzilla.redhat.com/1140547
virt-builder option '--format' don't work well
https://bugzilla.redhat.com/1140156
RFE: Export to RHEV data domain
https://bugzilla.redhat.com/1140050
No error shows when multiple conflicting options used with virt-v2v
https://bugzilla.redhat.com/1139973
Improve the error info when converting xen guest with no passwordless SSH access
configured
https://bugzilla.redhat.com/1139543
Improve the error info when converting guest with no space left
https://bugzilla.redhat.com/1138586
No error shows when converting running guest with virt-v2v
https://bugzilla.redhat.com/1138184
virt-v2v will fail when converting guests with initramfs-*kdump.img under /boot
https://bugzilla.redhat.com/1138182
xen guest will be kernel panic after converted by virt-v2v
https://bugzilla.redhat.com/1130189
Annoying message about permissions of /dev/kvm
https://bugzilla.redhat.com/1123007
libguestfs 'direct' backend should close file descriptors before exec-ing qemu to
avoid leaking !O_CLOEXEC fds
https://bugzilla.redhat.com/1122557
virt-sparsify overwrites block devices if used as output files
https://bugzilla.redhat.com/1113156
Empty fstab breaks libguestfs inspection
https://bugzilla.redhat.com/1111662
Guestfs.Error("vgchange_uuid_all: Volume group has active logical volumes")
https://bugzilla.redhat.com/1109174
virt-win-reg manual page is corrupted
https://bugzilla.redhat.com/1106548
root gets an error accessing to a non-root dir on a snapshot guestmount VMDK img
https://bugzilla.redhat.com/1103877
These APIs also need to add to `guestfish -h` command list
https://bugzilla.redhat.com/1102448
mageia package list is incorrect
https://bugzilla.redhat.com/1102447
libguestfs 1.27.13 does not build due to libxml library order
https://bugzilla.redhat.com/1100498
RFE: non-polling mechanism to detect guestmount --no-fork readiness
https://bugzilla.redhat.com/1099490
scrub-file can't handle link file
https://bugzilla.redhat.com/1099284
typo errors in man pages
https://bugzilla.redhat.com/1098718
RFE: virt-builder aliases
https://bugzilla.redhat.com/1096465
virt-builder "proxy=off" setting doesn't turn off the proxy for downloads
https://bugzilla.redhat.com/1094746
virt-sparsify man failes to mention what happens to snapshots within a qcow2 image
(they are discarded)
https://bugzilla.redhat.com/1092753
virt-builder: If several repos contain the same os-version images, then they are
duplicated in -l output
https://bugzilla.redhat.com/1091803
tar-in-opts execute failed that cause libguestfs appliance crashed
https://bugzilla.redhat.com/1088424
virt-resize: libguestfs error: part_set_name: parted: /dev/sdb: Error during
translation: Invalid or incomplete multibyte or wide character
https://bugzilla.redhat.com/1088262
virt-builder cannot write to a block device
https://bugzilla.redhat.com/1085029
Ruby tests fail with latest Ruby
https://bugzilla.redhat.com/1079210
virt-sparsify --in-place cannot sparsify as much as it should
https://bugzilla.redhat.com/1079182
virt-df cannot report used disk space of windows guest when updated to 6.5
https://bugzilla.redhat.com/1077817
virt-builder error: "syntax error at line 3: syntax error"
https://bugzilla.redhat.com/1056290
virt-sparsify overwrites block devices if used as output files
https://bugzilla.redhat.com/812970
virt-rescue cannot set ≥<rescue> prompt, on Ubuntu 12.04
RELEASE NOTES FOR LIBGUESTFS 1.26
These release notes only cover the differences from the previous stable/dev branch split
(1.24.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
Tools
virt-customize(1) is a new tool for customizing virtual machine disk images. It lets you
install packages, edit configuration files, run scripts, set passwords and so on.
virt-builder(1) and virt-sysprep(1) use virt-customize, and command line options across
all these tools are now identical.
virt-diff(1) is a new tool for showing the differences between the filesystems of two
virtual machines. It is mainly useful when showing what files have been changed between
snapshots.
virt-builder(1) has been greatly enhanced. There are many more ways to customize the
virtual machine. It can pull templates from multiple repositories. A parallelized
internal xzcat implementation speeds up template decompression. Virt-builder uses an
optimizing planner to choose the fastest way to build the VM. It is now easier to use
virt-builder from other programs. Internationalization support has been added to
metadata. More efficient SELinux relabelling of files. Can build guests for multiple
architectures. Error messages have been improved. (Pino Toscano)
virt-sparsify(1) has a new --in-place option. This sparsifies an image in place (without
copying it) and is also much faster. (Lots of help provided by Paolo Bonzini)
virt-sysprep(1) can delete and scrub files under user control. You can lock user accounts
or set random passwords on accounts. Can remove more log files. Can unsubscribe a guest
from Red Hat Subscription Manager. New flexible way to enable and disable operations.
(Wanlong Gao, Pino Toscano)
virt-win-reg(1) allows you to use URIs to specify remote disk images.
virt-format(1) can now pass the extra space that it recovers back to the host.
guestfish(1) has additional environment variables to give fine control over the "><fs>"
prompt. Guestfish reads its (rarely used) configuration file in a different order now so
that local settings override global settings. (Pino Toscano)
virt-make-fs(1) was rewritten in C, but is unchanged in terms of functionality and command
line usage.
Language bindings
The OCaml bindings have a new "Guestfs.Errno" module, used to check the error number
returned by "Guestfs.last_errno".
PHP tests now work. (Pino Toscano)
Inspection
Inspection can recognize Debian live images.
Architectures
ARMv7 (32 bit) now supports KVM acceleration.
Aarch64 (ARM 64 bit) is supported, but the appliance part does not work yet.
PPC64 support has been fixed and enhanced.
Security
Denial of service when inspecting disk images with corrupt btrfs volumes
It was possible to crash libguestfs (and programs that use libguestfs as a library) by
presenting a disk image containing a corrupt btrfs volume.
This was caused by a NULL pointer dereference causing a denial of service, and is not
thought to be exploitable any further.
See commit d70ceb4cbea165c960710576efac5a5716055486 for the fix. This fix is included
in libguestfs stable branches ≥ 1.26.0, ≥ 1.24.6 and ≥ 1.22.8, and also in RHEL ≥ 7.0.
Earlier versions of libguestfs are not vulnerable.
Better generation of random root passwords and random seeds
When generating random root passwords and random seeds, two bugs were fixed which are
possibly security related. Firstly we no longer read excessive bytes from
/dev/urandom (most of which were just thrown away). Secondly we changed the code to
avoid modulo bias. These issues were not thought to be exploitable. (Both changes
suggested by Edwin Török)
API
GUID parameters are now validated when they are passed to API calls, whereas previously
you could have passed any string. (Pino Toscano)
New APIs
"guestfs_add_drive_opts": new "discard" parameter
The new "discard" parameter allows fine-grained control over discard/trim support for
a particular disk. This allows the host file to become more sparse (or thin-
provisioned) when you delete files or issue the "guestfs_fstrim" API call.
"guestfs_add_domain": new parameters: "cachemode", "discard"
These parameters are passed through when adding the domain's disks.
"guestfs_blkdiscard"
Discard all blocks on a guestfs device. Combined with the "discard" parameter above,
this makes the host file sparse.
"guestfs_blkdiscardzeroes"
Test if discarded blocks read back as zeroes.
"guestfs_compare_*"
"guestfs_copy_*"
For each struct returned through the API, libguestfs now generates "guestfs_compare_*"
and "guestfs_copy_*" functions to allow you to compare and copy structs.
"guestfs_copy_attributes"
Copy attributes (like permissions, xattrs, ownership) from one file to another. (Pino
Toscano)
"guestfs_disk_create"
A flexible API for creating empty disk images from scratch. This avoids the need to
call out to external programs like qemu-img(1).
"guestfs_get_backend_settings"
"guestfs_set_backend_settings"
Per-backend settings (can also be set via the environment variable
"LIBGUESTFS_BACKEND_SETTINGS"). The main use for this is forcing TCG mode in the
qemu-based backends, for example:
export LIBGUESTFS_BACKEND=direct
export LIBGUESTFS_BACKEND_SETTINGS=force_tcg
"guestfs_part_get_name"
Get the label or name of a partition (for GPT disk images).
Build changes
The following extra packages are required to build libguestfs 1.26:
supermin ≥ 5
Supermin version 5 is required to build this version of libguestfs.
flex, bison
Virt-builder now uses a real parser to parse its metadata file, so these tools are
required.
xz This is now a required build dependency, where previously it was (in theory) optional.
Internals
PO message extraction rewritten to be more robust. (Pino Toscano)
"podwrapper" gives an error if the --insert or --verbatim argument pattern is not found.
Libguestfs now passes the qemu -enable-fips option to enable FIPS, if qemu supports it.
"./configure --without-qemu" can be used if you don't want to specify a default
hypervisor.
Copy-on-write [COW] overlays, used for example for read-only drives, are now created
through an internal backend API (".create_cow_overlay").
Libvirt backend uses some funky C macros to generate XML. These are simpler and safer.
The ChangeLog file format has changed. It is now just the same as "git log", instead of
using a custom format.
Appliance start-up has changed:
• The libguestfs appliance now initializes LVM the same way as it is done on physical
machines.
• The libguestfs appliance does not write an empty string to /proc/sys/kernel/hotplug
when starting up.
Note that you must configure your kernel to have "CONFIG_UEVENT_HELPER_PATH="""
otherwise you will get strange LVM errors (this applies as much to any Linux machine,
not just libguestfs). (Peter Rajnoha)
Libguestfs can now be built on arches that have ocamlc(1) but not ocamlopt(1). (Hilko
Bengen, Olaf Hering)
You cannot use "./configure --disable-daemon --enable-appliance". It made no sense
anyway. Now it is expressly forbidden by the configure script.
The packagelist file uses "m4" for macro expansion instead of "cpp".
Bugs fixed
https://bugzilla.redhat.com/1073906
java bindings inspect_list_applications2 throws
java.lang.ArrayIndexOutOfBoundsException:
https://bugzilla.redhat.com/1063374
[RFE] enable subscription manager clean or unregister operation to sysprep
https://bugzilla.redhat.com/1060404
virt-resize does not preserve GPT partition names
https://bugzilla.redhat.com/1057504
mount-local should give a clearer error if root is not mounted
https://bugzilla.redhat.com/1056290
virt-sparsify overwrites block devices if used as output files
https://bugzilla.redhat.com/1055452
libguestfs: error: invalid backend: appliance
https://bugzilla.redhat.com/1054761
guestfs_pvs prints "unknown device" if a physical volume is missing
https://bugzilla.redhat.com/1053847
Recommended default clock/timer settings
https://bugzilla.redhat.com/1046509
ruby-libguestfs throws "expecting 0 or 1 arguments" on Guestfs::Guestfs.new
https://bugzilla.redhat.com/1045450
Cannot inspect cirros 0.3.1 disk image fully
https://bugzilla.redhat.com/1045033
LIBVIRT_DEFAULT_URI=qemu:///system breaks libguestfs
https://bugzilla.redhat.com/1044585
virt-builder network (eg. --install) doesn't work if resolv.conf sets nameserver
127.0.0.1
https://bugzilla.redhat.com/1044014
When SSSD is installed, libvirt configuration requires authentication, but not clear
to user
https://bugzilla.redhat.com/1039995
virt-make-fs fails making fat/vfat whole disk: Device partition expected, not making
filesystem on entire device '/dev/sda' (use -I to override)
https://bugzilla.redhat.com/1039540
virt-sysprep to delete more logfiles
https://bugzilla.redhat.com/1033207
RFE: libguestfs inspection does not recognize Free4NAS live CD
https://bugzilla.redhat.com/1028660
RFE: virt-sysprep/virt-builder should have an option to lock a user account
https://bugzilla.redhat.com/1026688
libguestfs fails examining libvirt guest with ceph drives: rbd: image name must begin
with a '/'
https://bugzilla.redhat.com/1022431
virt-builder fails if $HOME/.cache doesn't exist
https://bugzilla.redhat.com/1022184
libguestfs: do not use versioned jar file
https://bugzilla.redhat.com/1020806
All libguestfs LVM operations fail on Debian/Ubuntu
https://bugzilla.redhat.com/1008417
Need update helpout of part-set-gpt-type
https://bugzilla.redhat.com/953907
virt-sysprep does not correctly set the hostname on Debian/Ubuntu
https://bugzilla.redhat.com/923355
guestfish prints literal "\n" in error messages
https://bugzilla.redhat.com/660687
guestmount: "touch" command fails: touch: setting times of `timestamp': Invalid
argument
https://bugzilla.redhat.com/593511
[RFE] function to get partition name
https://bugzilla.redhat.com/563450
list-devices returns devices of different types out of order
RELEASE NOTES FOR LIBGUESTFS 1.24
These release notes only cover the differences from the previous stable/dev branch split
(1.22.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
User-Mode Linux (UML) can be used as an alternative backend (ie. instead of KVM). This
improves performance especially when using libguestfs inside a VM (eg. in the cloud). UML
is supported as a first-class backend. See "USER-MODE LINUX BACKEND" in guestfs(3) for
how to use this.
ARM (32 bit) and PPC64 are now fully supported.
Tools
virt-builder(1) is a new tool for building virtual machine images. It lets you rapidly
and securely create guests and customize them.
New virt-sysprep(1) operations: Remove files in /tmp and /var/tmp. Remove RPM database
files. Change root and user passwords. More log files are removed. New operations which
are not enabled by default: Create random UUIDs for filesystems. Reset firewall rules.
(Wanlong Gao)
virt-resize(1) and virt-sysprep can now use URIs to specify a remote disk.
Use "guestfish -N filename=type" to create a named disk image (instead of the default
test1.img etc).
virt-sparsify(1) now tests if there is enough disk space to complete the operation,
instead of possibly running out of space half way through.
virt-format(1) and virt-make-fs(1): new --label option for setting filesystem label.
virt-resize --no-sparse flag can be used to resize on to partitions and other targets that
are not zeroed.
Language bindings
New bindings for the Go programming language.
API
Support for the systemd journal.
"guestfs_add_drive_opts" can now control the qemu caching mode through a new "cachemode"
parameter. You can select improved performance for temporary drives, or safety.
"guestfs_set_label" now works for XFS and btrfs.
New GUESTFS_EVENT_WARNING event for warning messages.
Inspection
Better inspection of SUSE guests (Olaf Hering).
Better support for non-standard Windows %systemroot% (Matthew Booth).
Enhanced error reporting for Augeas errors.
Security
CVE-2013-2124
https://bugzilla.redhat.com/show_bug.cgi?id=968306
A denial of service was possible when inspecting certain guests. The fix has been
backported to 1.20 and 1.22 branches.
CVE-2013-4419
https://www.redhat.com/archives/libguestfs/2013-October/msg00031.html
Fix insecure temporary directory handling for remote guestfish. The fix has been
backported to 1.20 and 1.22 branches.
New APIs
add-drive-scratch: Add a temporary scratch drive
aug-label
aug-setm
journal-open: Systemd journal support
journal-close
journal-next
journal-skip
journal-get
journal-get-data-threshold
journal-set-data-threshold
remount: Allow rw flag to be adjusted on mounted filesystems
set-uuid: Set UUID of filesystem
"is-file", "is-dir", "is-blockdev", "is-chardev", "is-fifo", "is-socket" APIs now have an
extra "followsymlinks" flag.
"add-drive" has a new "cachemode" parameter.
Build changes
The following packages are required to build libguestfs 1.24:
Augeas ≥ 1.0.0
The following optional packages may be added to enhance functionality but are not
required:
sd-journal
To read journal files from guests which use that.
url_mkcow
For UML backend.
curl
gpg
xz For virt-builder.
golang ≥ 1.1.1
For Go language bindings.
Internals
New "make check-*" rules replace "make extra-tests". See "make help" and guestfs(3) for
details.
Perl code can now be valgrinded.
Inspection code is now fuzz-tested.
"make" no longer recurses into the generator directory in every other directory. This
reduces the overhead of builds considerably.
Additional tests for Augeas, hivex.
Add a launch timeout of 20 minutes waiting for the appliance to start up.
Add a timeout (4 hours) to all tests so we can catch the case where qemu or other
components hang.
Use kvmclock and "-cpu host". This improves clock stability and overall performance.
"./configure --enable-packet-dump" mode is fixed.
"./configure --enable-valgrind-daemon" mode has been rewritten. It is now feasible for
developers to keep this flag enabled at all times.
Backends have been refactored to be modular (although they are not actually loadable
modules).
When enabled, the network now uses resolver configuration (ie. /etc/resolv.conf) from the
host.
Bugs fixed
https://bugzilla.redhat.com/1019889
libguestfs-tools.conf should have a man page
https://bugzilla.redhat.com/1018149
valgrind errors in btrfs_subvolume_list
https://bugzilla.redhat.com/1002032
mke2fs can't return the correct filesystem type when blockscount is less than 2048 for
ext3
https://bugzilla.redhat.com/1001876
Update "rsync-out" helpout for using wildcard
https://bugzilla.redhat.com/1001875
Argument 'excludes' of tar-out does not work
https://bugzilla.redhat.com/1000428
virt-format uses wrong partition type for vfat filesystems
https://bugzilla.redhat.com/1000121
'sh' command before mount causes daemon to segfault
https://bugzilla.redhat.com/998513
guestfish does not work when you mix --remote and --add options
https://bugzilla.redhat.com/998482
guestfish remote prints "libguestfs: error: waitpid (qemu): No child processes"
https://bugzilla.redhat.com/995711
list-filesystems command fails if there are no block devices
https://bugzilla.redhat.com/994517
cache=none/O_DIRECT workaround doesn't work for images with backing files
https://bugzilla.redhat.com/989356
cap-get-file will return error if the file has not be set capabilities
https://bugzilla.redhat.com/986877
RFE: Implement set-uuid command
https://bugzilla.redhat.com/986875
RFE: Implement set-label for xfs
https://bugzilla.redhat.com/985269
Can't set acl value for a specified user with 'acl-set-file'
https://bugzilla.redhat.com/983218
libguestfs double free when kernel link fails during launch
https://bugzilla.redhat.com/981715
Make xfs filesystem failed with specified blocksize, gives "unknown option -b" error
https://bugzilla.redhat.com/981683
"hivex-commit" should fail with a relative path
https://bugzilla.redhat.com/981663
disk-format "qemu-img info: JSON parse error" when target file does not exist
https://bugzilla.redhat.com/978302
mke2fs-J should give a meaningful error when specified type is anything except
'ext{2,3,4}'
https://bugzilla.redhat.com/975797
Specifying virtio interface ('iface' parameter) breaks the direct backend - libguestfs
hangs
https://bugzilla.redhat.com/975753
"virt-resize --expand" and "virt-resize --resize" outputs error message for Win2008
32bit OS
https://bugzilla.redhat.com/975412
inspection: Augeas expressions are broken with augeas >= 0.10
https://bugzilla.redhat.com/974904
virt-resize --expand fails on Ubuntu Cloud Image
https://bugzilla.redhat.com/974489
Regression: Fedora inspection broken by change from guestfs_exists to guestfs_is_file
https://bugzilla.redhat.com/972775
txz-out command produces a bzip2-compressed file (should be xz-compressed)
https://bugzilla.redhat.com/969845
upload to a directory occasionally hangs instead of failing
https://bugzilla.redhat.com/968875
virt-sysprep should support URL-type arguments
https://bugzilla.redhat.com/624334
blockdev-setbsz succeeds, but does not affect blockdev-getbsz
RELEASE NOTES FOR LIBGUESTFS 1.22
These release notes only cover the differences from the previous stable/dev branch split
(1.20.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
API
Remote access to disks:
• Network Block Device (nbd)
• Secure Shell (ssh)
• HTTP and HTTPS
• FTP and FTPS
• iSCSI
• Gluster
• Ceph/rbd (Mike Kelly)
• Sheepdog
• TFTP
The SYSLINUX and EXTLINUX bootloaders can now be installed in disk images using the API.
Inspection can now handle filesystems such as btrfs where subvolumes are separately
mountable (Matthew Booth).
"Attach methods" are now known as "backends". Compatibility with existing code is
preserved.
Filenames can contain ':', as long as newer QEMU is being used.
Tools
Virt-alignment-scan and virt-df scan multiple guests in parallel.
Guestmount now passes errno accurately back to userspace in almost all cases.
Guestfish and other tools can now use a URI-like syntax to access remote disks, eg:
guestfish -a ssh://example.com/path/to/disk.img
Guestfish and guestmount now allow you to specify the filesystem type when mounting, which
is more secure (Dave Vasilevsky).
Guestfish is now the "guest filesystem shell".
Guestfish allows only 1 "true" "t" "yes" "y" "on" 0 "false" "f" "no" "n" "off" for boolean
values (case insensitive), and gives an error for all other strings.
New tool "guestunmount" for unmounting FUSE filesystems safely.
"guestmount --no-fork" flag prevents guestmount from daemonizing.
Virt-resize now uses sparse copies by default, saving considerable space for guests which
are mostly empty.
Bash tab completion has been rewritten and can now handle most tools, and correctly tab-
complete "--long" options. In addition, bash completion scripts are loaded on demand.
Language bindings
The Java API now supports events.
The Python object now inherits from the "object" base class.
Python methods which previously returned lists of tuples can now be made to return a
Python dict. For backwards compatibility, you have to enable this by using the
constructor option "guestfs.GuestFS (python_return_dict=True)".
The PHP bindings are now tested properly, and have had multiple fixes.
The long-deprecated Perl "Sys::Guestfs::Lib" library has been removed.
https://www.redhat.com/archives/libguestfs/2013-April/msg00001.html
Examples
New example program showing how to enable debugging and capture log messages.
Other
Distributors can add arbitrary extra packages to the appliance by doing:
./configure --with-extra-packages="list of package names"
Distributors can use:
./configure --with-supermin-extra-options="..."
to add arbitrary extra options to supermin.
Security
No security issues were found in this release.
New APIs
cp-r
extlinux
feature-available
get-program
is-whole-device
part-get-gpt-type
part-set-gpt-type
rename
set-program
syslinux
C only:
guestfs_event_to_string
Internals
The febootstrap tool has now been renamed to "supermin". Libguestfs can use either, but
now prefers "supermin". http://people.redhat.com/~rjones/supermin/
libxml2 is required to build libguestfs.
The hivexregedit program (from hivex) is required to build from git.
Internal functions can no longer be used unless the caller defines "-DGUESTFS_PRIVATE=1".
Enable C compiler warnings in Python, Ruby bindings.
Fail early and clearly if libvirt does not support qemu/KVM (eg. if default libvirt
connection is to Xen).
"make print-subdirs" rule, useful for selectively running tests.
Multiple fixes to allow separated (sourcedir != builddir) builds.
Multiple fixes to Haskell bindings.
"ln" and "ln-f" APIs now capture "errno" correctly.
Language binding tests use (mostly) a standard numbering scheme and aim to test the same
range of features in each language. Also the number of launches required has been reduced
so these tests should run much more quickly.
Library code internally uses GCC "__attribute__((cleanup))" (if available) to simplify
memory allocation.
Internal header files have been reorganized. See the comments in src/guestfs-internal*.h
Internal code shared between the library and certain tools is now located in a static
"libutils" library.
Almost all subdirectories can now use parallel builds, although note that the top-level
directories still build in series.
Use of "PATH_MAX" and "NAME_MAX" has been eliminated from the code.
The Java API now requires JVM ≥ 1.6.
Force use of "serial-tests" with automake ≥ 1.12.
Use of sockets in the library protocol layer is abstracted, allowing other non-POSIX
layers to be added in future (see src/conn-socket.c).
"qemu-img info --output json" is used if available, for more secure parsing of the output
of this command.
Distros can now use "make INSTALLDIRS=vendor install" to place Ruby bindings in vendordir.
This eliminates a non-upstream patch carried by both Fedora and Debian.
Valgrind log files are now written to tmp/valgrind-DATE-PID.log
"make clean" cleans the local "tmp/" directory.
The C API tests have been rewritten using a more flexible generator language that allows
arbitrary C code to be executing during tests.
Bugs fixed
https://bugzilla.redhat.com/961812
Segfault in inspect-fs.c in mountable code
https://bugzilla.redhat.com/957772
tar-out and base64-out quoting error
https://bugzilla.redhat.com/957380
libguestfs: error: btrfsvol:/dev/sda2/root: root device not found: only call this
function with a root device previously returned by guestfs_inspect_os
https://bugzilla.redhat.com/948324
inspection fails if libosinfo is not installed
https://bugzilla.redhat.com/928995
file on zero-sized file now produces "empty " instead of "empty"
https://bugzilla.redhat.com/921292
qemu: could not open disk image /tmp/.../snapshot1: Permission denied
https://bugzilla.redhat.com/921040
"error: external command failed, see earlier error messages" message needs to change
https://bugzilla.redhat.com/920225
libguestfs should use --output json (if supported) to safely parse the output of qemu-
img command
https://bugzilla.redhat.com/916780
feature request: guestmount --with-cleanup-pipefd
https://bugzilla.redhat.com/914934
oom-killer kills guestfsd when tar-in a lot of data
https://bugzilla.redhat.com/914931
FileIn commands cause segfault if appliance dies during the file copy in
https://bugzilla.redhat.com/913145
Misc leaks in virNetClientProgramCall in libvirt 1.0.2
https://bugzilla.redhat.com/912499
Security context on image file gets reset
https://bugzilla.redhat.com/909836
libguestfs-test-tool --qemu segfaults
https://bugzilla.redhat.com/909624
Unexpected non-tail recursion in recv_from_daemon results in stack overflow in very
long-running API calls that send progress messages
https://bugzilla.redhat.com/908322
virt-tar fails on non-existent directory names "error in chunked encoding at
/home/rjones/d/libguestfs/tools/virt-tar line 272."
https://bugzilla.redhat.com/908321
virt-cat fails on directory names "/dev/stdout: error in chunked encoding"
https://bugzilla.redhat.com/907554
btrfs causes subsequent ntfs-3g filesystem to fail
https://bugzilla.redhat.com/905341
"No such file or directory" when execute "hivex-commit"
https://bugzilla.redhat.com/903620
btrfs_subvolume_list broken due to change in subvolume list output
https://bugzilla.redhat.com/895910
guestmount: rename() incorrectly follows symbolic links
https://bugzilla.redhat.com/895905
guestmount: link() incorrectly returns ENOENT, when it should be EXDEV
https://bugzilla.redhat.com/895904
checksums-out fail to compute the checksums of all regular files in directory
https://bugzilla.redhat.com/894545
libguestfs FTBFS on Fedora 19 because of new ruby
https://bugzilla.redhat.com/890027
virt-sysprep: Setting hostname, domain name and pretty name on Fedora 18 correctly
https://bugzilla.redhat.com/887971
pvcreate fails if partition contains a swap signature
https://bugzilla.redhat.com/887520
zero_free_space: open: /sysroot//ujqqq135.rd3: Cannot allocate memory
https://bugzilla.redhat.com/886915
libguestfs with libvirt attach-method fails with odd error if default hypervisor is
Xen
https://bugzilla.redhat.com/847549
Adding a zero-length virtio-scsi disk causes: qemu-kvm: hw/scsi-bus.c:1568:
scsi_req_complete: Assertion `req->status == -1' failed.
https://bugzilla.redhat.com/811649
libguestfs cannot open disk images which are symlinks to files that contain ':'
(colon) character
https://bugzilla.redhat.com/664558
RFE: Allow to set log callback in Ruby bindings
RELEASE NOTES FOR LIBGUESTFS 1.20
These release notes only cover the differences from the previous stable/dev branch split
(1.18.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
libvirt and sVirt (SELinux confinement)
You can optionally use libvirt to launch and manage the backend appliance by:
• setting "LIBGUESTFS_ATTACH_METHOD=libvirt[:URI]"
• using "./configure --with-default-attach-method=libvirt[:URI]"
• or calling the API method "guestfs_set_attach_method"
SVirt (SELinux confinement) is used to secure the libguestfs appliance, if the libvirt
backend is selected.
virtio-scsi, larger number of drives, hotplugging
Virtio-scsi is now used by default, if it is available. This greatly increases the number
of drives that can be added to a single libguestfs handle (up to 255).
You can now hotplug drives (add and remove drives after launch).
Libguestfs can now handle > 25 disks, in all APIs, tools and tests.
You can label drives when adding them, then refer to them by label
(/dev/disk/guestfs/LABEL) instead of having to use device names (/dev/sda).
new library features
POSIX Access Control Lists (ACLs) and Linux filesystem capabilities can now be read and
written through the API.
Windows Dynamic Disks are now supported. The metadata can only be read (volumes cannot be
modified or created). However the data/filesystems in the volumes themselves can be
mounted, read and written (Matthew Booth).
Hivex (Windows Registry editing) is now directly supported through the API, making reading
or editing the Windows Registry much more efficient.
Several libguestfs APIs were reimplemented so they no longer have any limits on output.
The reimplemented APIs are: "guestfs_cat", "guestfs_find", "guestfs_read_file",
"guestfs_read_lines", "guestfs_write", "guestfs_write_append", "guestfs_lstatlist",
"guestfs_lxattrlist", "guestfs_readlinklist", "guestfs_ls".
virt tools
"guestfish touch 'win:c:\new_file'" now works as expected.
"guestfish" has a new --network option, which enables the user network in libguestfs.
You can set "GUESTFISH_PS1" to use fancy prompts in "guestfish".
"rsync", "ssh", "less" and "lrzip" commands are now available in virt-rescue. In
addition, "rsync" can be used through the API for doing incremental copies.
"virt-sparsify" uses qcow2 v3 for increased efficiency.
"virt-sysprep" enhancements:
• generate new UUIDs for PVs and VGs
• remove the local machine ID (Wanlong Gao)
• remove ABRT data (Wanlong Gao)
• remove puppet keys and log files (Wanlong Gao)
• remove process accounting files (Wanlong Gao)
• new --firstboot parameter allowing firstboot scripts for customizing guests
• remove HOSTNAME field from "ifcfg-eth*" files (Wanlong Gao)
• miscellaneous improvements for SuSE (Olaf Hering)
• remove man pages cache (Wanlong Gao)
• remove crash data generated by kexec-tools (Wanlong Gao)
"virt-make-fs" can now create virtual floppy disks (VFDs).
"guestmount" has a --pid-file option, which can be used to avoid a race condition between
unmounting the filesystem and using the underlying disk image.
language bindings
Full-featured Lua bindings have been added in this release (thanks to Jerome Vuarand for
many suggestions).
In Ruby, optional arguments hash is optional.
In Python, optional arguments now don't use special "sentinel" values, so any integer can
be passed as an optional argument.
Erlang bindings now come with examples and tests.
Erlang bindings now handle 64 bit integer parameters correctly.
The automated 'bindtests' now test for 64 bit cleanliness in parameter passing. Several
bugs in the bindings were found and fixed as a result.
Better handling of blocking and non-blocking functions should make libguestfs calls more
efficient.
inspection
Windows guests with unlimited-sized Registries are now supported. By adding the hivex API
to the libguestfs API, it is much more efficient and easier to inspect and modify the
Windows Registry in guests.
Better support for SuSE guests (Olaf Hering).
Return the architecture of installed applications (John Eckersberg).
Windows 8 is now supported.
Fedora 18 is now supported.
Inspection of ISOs/CDs/DVDs can now use the libosinfo database.
ports
Libguestfs without the appliance can be compiled on Mac OS X (Masami HIRATA).
RHEL 5 is now explicitly supported through the 'oldlinux' branch in upstream git.
PowerPC 64 bit is now supported. Also libguestfs has been examined for endianness bugs
and these have been fixed.
daemon
A man page for the daemon (guestfsd(8)) is included.
Security
guestfish history file
The $HOME/.guestfish history file is now created with 0600 permissions (instead of 0644
before) so it is no longer world readable.
CVE-2012-2690
Old versions of both "virt-edit" and the "guestfish" "edit" command created a new file
containing the changes but did not set the permissions, etc of the new file to match the
old one. The result of this was that if you edited a security sensitive file such as
/etc/shadow then it would be left world-readable after the edit.
This issue was assigned CVE-2012-2690, and is fixed in libguestfs ≥ 1.16.
For further information, see https://bugzilla.redhat.com/show_bug.cgi?id=788642
New APIs
acl-delete-def-file
acl-get-file
acl-set-file
canonical-device-name
cap-get-file
cap-set-file
create-flags
device-index
disk-has-backing-file
disk-format
disk-virtual-size
filesystem-available
fill-dir
fstrim
get-cachedir
get-libvirt-requested-credentials
get-libvirt-requested-credential-prompt
get-libvirt-requested-credential-challenge
get-libvirt-requested-credential-defresult
get-tmpdir
hivex-close
hivex-commit
hivex-node-add-child
hivex-node-children
hivex-node-delete-child
hivex-node-get-child
hivex-node-get-value
hivex-node-name
hivex-node-parent
hivex-node-set-value
hivex-node-values
hivex-open
hivex-root
hivex-value-key
hivex-value-type
hivex-value-utf8
hivex-value-value
inspect-list-applications2 (John Eckersberg)
list-ldm-volumes
list-ldm-partitions
ldmtool-create-all
ldmtool-diskgroup-disks
ldmtool-diskgroup-name
ldmtool-diskgroup-volumes
ldmtool-remove-all
ldmtool-scan
ldmtool-scan-devices
ldmtool-volume-hint
ldmtool-volume-partitions
ldmtool-volume-type
ls0
max-disks
mke2fs (Wanlong Gao)
mklost-and-found
mkswap [added label and uuid optional arguments]
mktemp (Wanlong Gao)
nr-devices
parse-environment
parse-environment-list
rm-f
rsync
rsync-in
rsync-out
set-cachedir
set-libvirt-supported-credentials
set-libvirt-requested-credential
set-tmpdir
shutdown [backported to 1.16 and 1.18]
tar-in [added compress flag]
tar-out [added compress, numericowner, excludes flags]
umount [added force and lazy optional arguments]
utsname
xfs-admin (Wanlong Gao)
xfs-growfs (Wanlong Gao)
xfs-info (Wanlong Gao)
xfs-repair (Wanlong Gao)
In the C API only:
guestfs_push_error_handler
guestfs_pop_error_handler
Internals
qemu ≥ 1.1 is required (≥ 1.2 preferred).
febootstrap ≥ 3.20 is required.
libvirt is optional, but if you want to use the new libvirt backend for launching the
appliance then libvirt ≥ 0.10.2 would be required.
Coverity has been run over the complete codebase, and many issues fixed (thanks Ondrej
Vasik, Kamil Dudka).
Functions which previously had no optargs can now be converted to ones with optargs,
making extending the API much more flexible. Source and binary backwards compatibility is
preserved for users of the API.
The way that libguestfs APIs and structures are represented in the generator has changed
to use an OCaml struct instead of a tuple. This makes generator descriptions more
flexible and easier to understand. For details see commits 39d1a7db and eb185eef.
Separation of the library code into more files:
• Launch backends are now located in separate files eg. src/launch-appliance.c,
"src/launch-libvirt.c".
• Generated action code is now split over several src/action*.c files, for faster
compilation.
• The huge src/guestfs.c file is now split into smaller logical units.
POD (documentation) is now generated using a rewritten Perl program instead of pod2* +
shell scripts.
Man pages now contain stable dates (Hilko Bengen).
Skipped tests now exit with code 77, so they appear as "SKIP:" in "make check" output.
The parallel mount-local test has been rewritten in C (RHBZ#838081).
Ruby 1.8.5 is now supported (though Ruby ≥ 1.9 is preferred).
Perl bindings can be disabled via "./configure --disable-perl" (Wulf C. Krueger). Note
that Perl is still required in order to build libguestfs.
Java bindings are now enabled/disabled using "./configure --with-java" or "./configure
--without-java" (Wulf C. Krueger).
New configure options "./configure --enable-code-profiling" and "./configure
--enable-code-coverage".
Multiple fixes to use of 64 bit integers in language bindings.
The appliance backend now uses sgabios instead of vgabios (Dan Berrange).
The "./run" script now sets enough environment variables that you can run OCaml, Python,
Ruby, Java, GJS, Erlang, Lua programs.
"./run --test" flag for running tests with minimal output. It also prints the time taken
to run each test.
The "./run" script now builds up paths cumulatively, meaning that you can use "./run"
twice, or use the libguestfs and libvirt "./run" scripts together.
You can extract a list of external commands required by the daemon, making building the
appliance on certain distros easier (Olaf Hering).
The "virt-rescue" command is now tested during "make check".
The generator now removes unused generated files. This helps when going back and forth
with git rebase, git bisect, etc.
Tests now run in a separate toplevel "tmp/" directory in the source. This allows the
directory to be labelled for SELinux (sVirt), and also makes it easier to clean up.
"make syntax-check" now works to a greater extent, and many problems in the main code that
were found by syntax-check have been fixed (thanks Jim Meyering).
Emacs mode (-*- foo -*-) has been added to generated files.
Progress bar output is now sent to /dev/tty so it doesn't end up in the regular output of
the program. virt-resize and virt-sparsify now suppress progress bars if stdout is not a
tty.
There is now a "./configure --without-libvirt" option. This is useful for testing that
the code still compiles without libvirt.
There is now an internal mini-library for running commands. This allows us to redirect
errors from external commands into events.
Code for handling temporary directories and the appliance cache was completely overhauled.
Code for temporarily ignoring/disabling errors now looks like this:
guestfs_push_error_handler (g, NULL, NULL);
guestfs_mkdir (g, "/foo"); /* We don't care if this fails. */
guestfs_pop_error_handler (g);
The "tests/extra" directory has gone. The "extra tests" are now split into separately
runnable targets, such as "make check-valgrind". Use "make help" to get a summary of the
targets.
The "lpj" option is passed to the appliance kernel when using TCG. This should improve
clock stability (thanks Marcelo Tosatti, Olaf Hering).
Bugs fixed
https://bugzilla.redhat.com/882417
libguestfs tools fail with odd error messages if TMPDIR is not an absolute path
https://bugzilla.redhat.com/882299
Windows 8 guest disks can't be mounted: "The NTFS partition is in an unsafe state.
Please resume and shutdown Windows fully (no hibernation or fast restarting), or mount
the volume read-only with the 'ro' mount option."
https://bugzilla.redhat.com/881953
libguestfs: migration to /etc/hostname, /etc/vconsole.conf, /etc/locale.conf
https://bugzilla.redhat.com/880801
virt-df with two -a options displays incorrect disk image name
https://bugzilla.redhat.com/879416
libguestfs-test-tool pauses when you use --help option
https://bugzilla.redhat.com/876579
mke2fs API does not apply block device naming translation to journaldevice optarg
https://bugzilla.redhat.com/860235
SELinux policy ought to allow qemu to write to unconfined_u:object_r:user_tmp_t:s0
https://bugzilla.redhat.com/859949
RFE: inspect-list-applications does not return the architecture of RPM packages
https://bugzilla.redhat.com/859885
inspect-list-applications does not list all installed RPM packages with same name and
different versions
https://bugzilla.redhat.com/859876
guestfish printed paths are not canonicalized
https://bugzilla.redhat.com/859875
Progress bar output should go to tty(?) stderr(?)
https://bugzilla.redhat.com/858696
virt-sysprep reports Guestfs.Error("read_lines: fopen: /etc/sysconfig/network: No such
file or directory") on some Fedora guests
https://bugzilla.redhat.com/858128
libguestfs fail to list devices added by add-drive-ro-with-if twice
https://bugzilla.redhat.com/858126
virt-inspector fail to work with some windows guests
https://bugzilla.redhat.com/853762
virt-sparsify should use a more robust method to detect the input format
https://bugzilla.redhat.com/853393
libvirt doesn't label console, serial sockets
https://bugzilla.redhat.com/853159
virt-rescue in Fedora 18 is completely broken
https://bugzilla.redhat.com/852394
libguestfs inspection limits registries to 100 MiB
https://bugzilla.redhat.com/852194
virt-sparsify --compress fails if output is raw format
https://bugzilla.redhat.com/847881
RFE: allow extra arguments (like --exclude) to tar-out
https://bugzilla.redhat.com/847880
tar-out should allow (or force) --numeric-owner
https://bugzilla.redhat.com/845522
guestfish "copy-out / localdir" command fails with "No such file or directory"
https://bugzilla.redhat.com/845488
Long filenames on NTFS cause tar-out, copy-out etc to fail with error "Cannot open:
File name too long"
https://bugzilla.redhat.com/842307
RFE: Need help designing and implementing selinux policy for libguestfs/sVirt
https://bugzilla.redhat.com/840572
virt-make-fs / tar-in should support vfat properly
https://bugzilla.redhat.com/840115
guestfish touch problem - case_sensitive_path API expects the file to exist
https://bugzilla.redhat.com/836710
Data loss when writing to qcow2-format disk files
https://bugzilla.redhat.com/834712
lvresize, lvresize-free fail unnecessarily if you don't change the size of the LV:
"New size (nn extents) matches existing size (nn extents)"
https://bugzilla.redhat.com/824716
compress-device-out didn't support bzip2
https://bugzilla.redhat.com/824043
guestfish unrecognized mount option gives confusing error message
https://bugzilla.redhat.com/823887
Filenames containing Chinese characters can't be created on vfat filesystems
https://bugzilla.redhat.com/823885
virt-make-fs cannot create vfat filesystem containing filesystems with Chinese
characters
https://bugzilla.redhat.com/823883
virt-make-fs -t fat fails with an obscure error message
https://bugzilla.redhat.com/823821
Inspection fails when /etc/HOSTNAME is empty
https://bugzilla.redhat.com/801117
libguestfs cannot get icon for Windows 8
https://bugzilla.redhat.com/798979
Ubuntu install CDs from oneiric onwards are not recognized: "multi-boot operating
systems are not supported"
https://bugzilla.redhat.com/782167
libguestfs doesn't recognize Windows Dynamic disks in some configurations, eg. spanned
https://bugzilla.redhat.com/713678
Not all febootstrap messages are redirected to log callbacks
https://bugzilla.redhat.com/627675
libguestfs inspector code cannot handle /dev/disk/by-id/* paths
https://bugzilla.redhat.com/602997
part-get-bootable gives wrong result with an unordered part layout
RELEASE NOTES FOR LIBGUESTFS 1.18
These release notes only cover the differences from the previous stable/dev branch split
(1.16.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
virt tools
- virt-sysprep has been rewritten and expanded (thanks Wanlong Gao)
http://libguestfs.org/virt-sysprep.1.html
- virt-sparsify --zero is a new option that zeroes the named
partition or filesystem
- virt-sparsify can now safely sparsify Linux swap partitions
- virt-sparsify fixed so it cleans up after ^C
http://libguestfs.org/virt-sparsify.1.html
- a new tool 'libguestfs-make-fixed-appliance' is provided to build
fixed appliances that can be copied to other machines that don't
have febootstrap support
http://libguestfs.org/libguestfs-make-fixed-appliance.1.html
- virt-filesystems now displays the parents (containers) of MD
devices and volume groups
- virt-alignment-scan, run with no args, displays alignment information
for all libvirt domains
- virt-df and virt-alignment-scan will display information from all
guests even when a disk is inaccessible
- virt-rescue new --scratch option to make scratch disks
https://rwmj.wordpress.com/2012/04/26/virt-rescue-scratch/#content
- virt-make-fs can now be used to create btrfs
- virt-edit preserves permissions, UID, GID and SELinux context
when editing files
- guestfish passes the close event over stdout and remote correctly
- guestfish new '--pipe-error' option lets you detect errors in pipe
commands
- guestfish globs now expand device names
- comma and colon characters in filenames now handled correctly by
all virt tools
inspection
- added support for Fedora 17+
- added support for FreeDOS
- added support for Buildroot and Cirros
- inspection is now compatible with Windows guests that have been
sysprepped (thanks Grant Williamson).
API
- broad support for btrfs added, including adding multiple devices,
fsck, snapshots (thanks Wanlong Gao)
- the new 'mount-local' API brings FUSE support directly into the
core libguestfs API
https://rwmj.wordpress.com/2012/05/14/tip-using-mount-local-api-from-c/#content
- new man page: guestfs-performance(1), which contains performance
tuning tips
http://libguestfs.org/guestfs-performance.1.html
- new man page: guestfs-faq(1), Frequently Asked Questions
http://libguestfs.org/guestfs-faq.1.html
- ENOTSUP (from guestfs_last_errno) is now returned for APIs that
are not supported
examples
- 'copy_over' example showing how to copy between two handles
- 'display_icon' program displays the icon associated with a guest
- 'mount_local.c' example shows how to use the mount-local API
Security
(no security problems were found or fixed in this release)
New APIs
btrfs-device-add: Add devices to a btrfs filesystem.
btrfs-device-delete: Remove devices from a btrfs filesystem.
btrfs-filesystem-sync: Sync a btrfs filesystem.
btrfs-filesystem-balance: Balance a btrfs filesystem.
btrfs-fsck: Check btrfs filesystem.
btrfs-set-seeding: Enable or disable seeding.
btrfs-subvolume-create: Create a btrfs snapshot.
btrfs-subvolume-delete: Delete a btrfs snapshot.
btrfs-subvolume-list: List btrfs snapshots and subvolumes.
btrfs-subvolume-set-default: Set default btrfs subvolume.
btrfs-subvolume-snapshot: Create a writable btrfs snapshot.
get-e2attrs: List ext2 file attributes of a file.
get-e2generation: Get ext2 file generation of a file.
isoinfo, isoinfo-device: Get information from the header of ISO files.
llz: List files with SELinux information.
lvcreate-free: Create an LVM logical volume in % remaining free space.
md-stat: Return underlying devices from an MD device.
mkfs-brtfs: Make btrfs filesystem, with all tunables.
mount-local, mount-local-run, umount-local: FUSE support in the API.
ntfsclone-in, ntfsclone-out: Save, restore NTFS from backup.
ntfsfix: Fix common errors and force Windows to check NTFS.
set-e2attrs: Set or clear ext2 file attributes of a file.
set-e2generation: Set ext2 file generation of a file.
set-label: Unified interface for setting filesystem label.
vgmeta: Get volume group metadata.
wipefs: Wipe filesystem signatures from a device.
zero-free-space: Zero free space in a filesystem.
Internals
- The debian/ subdirectory has been removed. We recommend you use
the official Debian packages made by Hilko Bengen.
http://people.debian.org/~bengen/libguestfs/
http://packages.debian.org/search?keywords=libguestfs
- O_CLOEXEC / SOCK_CLOEXEC is now used for almost all file
descriptors that the library opens.
- posix_fadvise is called when sequentially reading or writing large
files.
- close all file descriptors and remove all signal handlers in the
recovery process
- multiple gcc warnings and Coverity bugs have been fixed; many
strict-overflow bugs have also been fixed
- use ./configure --enable-valgrind-daemon to use valgrind on the
daemon; many errors have been fixed
- use ./configure --with-qemu-options to pass extra options to qemu
- the daemon now has a growable strings buffer type (DECLARE_STRINGSBUF)
- the <guestfs.h> header file works with C++ and we have a regression
test for this
- multiple APIs which should only be called in the CONFIG state now
give an error if they are not
- .gitignore fixed to use absolute paths
- gobject bindings have been expanded, including mapping libguestfs
events to gobject signals (thanks Matt Booth)
- gobject documentation is generated properly (thanks Matt Booth)
- gobject header files now live in a subdirectory
- CompareWithString test in the generator now works
- FUInt32, FUInt64 struct field types now use the correct XDR type
- OCaml tests are now run on bytecode and native code.
- java -Xlint:all is used, and all warnings have been fixed
- bmptopng, wrestool (etc) missing or failure no longer prints
warning messages
- ruby: Use RbConfig instead of Config.
- PYTHONPATH is set by the ./run script.
- appliance building is now thread-safe.
- appliance now uses 'ip' instead of 'ifconfig' and 'netstat'
commands
- several fixes to make parallel builds work properly
- guestfish --listen now cleans up properly
- the BUSY state has been removed
- gettextize has been removed, replaced by a simple Makefile.am
- gettext support now covers virt-resize, virt-sparsify and virt-sysprep
- better support for the arm architecture
Bugs fixed
- 822490 virt-ls error: "libguestfs: error: checksum: path: parameter cannot be NULL"
- 816839 data overflow error when debug progress -1
- 816098 virt-make-fs fails to make a btrfs filesystem because it doesn't allocate enough space
- 811872 inspection fails on ubuntu 10.04 guest with encrypted swap
- 811650 guestfs_last_error not set when qemu fails early during launch
- 811649 libguestfs cannot open disk images which are symlinks to files that contain ':' (colon) character
- 811117 [RFE][virt-sysprep] net-hwaddr not removed from "ifcfg-*" files on rhel
- 811112 [RFE][virt-sysprep] hostname can not be changed on rhel system
- 809361 inspection doesn't recognize Fedora 18 (grub2 + GPT)
- 807905 mkfs blocksize option breaks when creating btrfs
- 805070 virt-filesystems should show 'parents' of LV and RAID devices
- 804464 libguestfs cannot be built when LINGUAS is different then ja or uk
- 803664 libguestfs inspection fails on Windows XP: libguestfs: error: hivex: could not locate HKLM\SYSTEM\MountedDevices
- 803533 guestfish: write error
- 802389 event handlers for 'close' event doesn't work in remote mode
- 802109 libguestfs uses putc on stderr, results in many individual 1 byte writes of debug messages
- 801640 [RFE] the error reported by resize2fs-M need to be more clear
- 801298 Possible null dereference and resource leaks
- 801273 Document for set-pgroup need to be updated
- 798196 virt-resize confuses format and output_format variables; using --output-format sets the input format
- 797986 virt-resize on Windows XP in sysprep state causes "UNMOUNTABLE_BOOT_VOLUME" BSOD
- 796520 [RFE] Prevent user from running some appliance configure commands after appliance boot up
- 790721 multiprovider build error: RuntimeError: link: /tmp/.guestfs-0/kernel /tmp/.guestfs-0/kernel.10139: File exists
- 789960 guestfsd crash when try to mount non-exist disk
- 789504 virt-df (other tools?) should not give up if a guest disk is missing
- 788641 virt-edit doesn't preserve file permissions
- 786215 libguestfs inspection does not recognize FreeDOS operating system
- 786188 libguestfs inspection does not recognize FreeDOS install CD
- 785668 aug-defnode: daemon crash
- 784647 Libguestfs uses deprecated net-tools
- 769304 virt-resize on RHEL 6 kernel fails to re-read the partition table
- 755729 Error message for resize2fs-M needs tweaking
- 701814 virt-win-reg fails on a libvirt guest that has no defined disk format: "format parameter is empty or contains disallowed characters"
- 679737 libguestfs: improve error message when zerofree is not available in the appliance
- 635971 glob mkfs ext2 /dev/vd[b-t]1 does not expand
RELEASE NOTES FOR LIBGUESTFS 1.16
These release notes only cover the differences from the previous stable/dev branch split
(1.14.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
libguestfs
- allow XFS filesystems to be created over an existing filesystem
(Wanlong Gao)
- the (unspecified) default alignment for part-disk has been
changed to 64K for better support of high-end network-attached
storage
- new guestfs-testing(1) man page
- list-filesystems returns MD devices containing filesystems
(Matthew Booth)
- support for GCC >= 4.7 (Jim Meyering)
- check user does not add the same drive twice (Wanlong Gao).
language bindings
- Experimental GObject bindings, with support for GObject
Introspection. You can now use libguestfs from Javascript.
Please note these are not stable and final in this release.
(Matthew Booth).
- support for Ruby >= 1.9
- Ruby bindings can be disabled individually (Hilko Bengen)
- support for Python 2.6, 3.x (Richard Jones, Hilko Bengen)
- support for PHP >= 5.4
- new %guestfs_introspection hash is available in Perl bindings so
you can query which optional arguments are available
inspection
- guests with MD devices can be inspected (Matthew Booth)
- support for GNU/Hurd guests
guestfish
- libguestfs events (such as progress bar events and log messages) can
be trapped and processed by user-defined shell scripts.
- MD devices are tab-completed (Matthew Booth)
virt tools
- New tool virt-format for erasing and making blank disks
- virt-sparsify new --compress and -o options to allow for compressed
and different format output
- virt-sparsify can now detect and sparsify .vdi files
- virt-sysprep no longer requires xmlstarlet; a new virt-inspector --xpath
option has been added to replace this functionality
- virt-rescue has a new --suggest option which suggests mount commands
for the guest
- virt-resize no longer requires OCaml pcre library
libguestfs live
- daemon will no longer try to edit your live /etc/lvm configuration
- fix a potential security problem with predictable /tmp names (Steve Kemp)
Security
CVE-2011-4127, RHBZ#757071
Mitigate possible privilege escalation via SG_IO ioctl
For more information, see: https://github.com/libguestfs/libguestfs/commit/9a5f784d511a8f00a8386f316eab41fe660430db
New APIs
blkid: print all attributes of a device known to blkid (Wanlong Gao)
e2fsck: access to more features of e2fsck (Wanlong Gao)
list-md-devices: list of Linux MD devices (Matthew Booth)
md-create: create an MD device
md-detail: returns metadata for an MD device (Matthew Booth)
md-stop: stop an MD device (Wanlong Gao)
tune2fs: allow ext2/3/4 filesystems to be tuned
Internals
Git hosting has moved to http://github.com/libguestfs
The various test directories have been rearranged logically, and now
all appear under 'tests/'.
There is a 'make extra-tests' rule which runs ordinary tests and
additional tests, using valgrind to check for memory problems.
Multiple memory leaks and other problems found by valgrind and fixed.
Support for optional arguments in the generator has been rewritten
to provide more features and safety (Matthew Booth).
With gcc -fvisibility=hidden is used for internal symbols, avoiding
call indirection via the PLT.
RHashtable functions can be tested in the generator.
ADD_ARG macro in daemon allows arg lists to be constructed without
risk of stack smashing.
Fix generation of OCaml functions that have more than 10 arguments.
psmisc has been added to the appliance, allowing use of 'fuser',
'killall' and 'pstree' for debugging.
bindtests now cover RBufferOut and optional arguments (Matthew Booth).
Bugs fixed
- 769680 temporary directories created during appliance builds are not cleaned up on error
- 761460 guestfs_utimens hangs on named pipes
- 761451 guestfs_utimens cannot set times on a directory
- 760775 "guestfish: multi-boot operating systems are not supported by the -i option" should be more explanatory
- 760669 guestfish copy-in and <! (inline execution) don't mix well: pclose: No child processes
- 760000 libguestfs fails to compile with Ruby >= 1.9
- 755729 Error message for resize2fs-M needs tweaking
- 750889 Python code incompatible with Python v3.
- 596761 Ctrl-\ causes guestfish to abort
RELEASE NOTES FOR LIBGUESTFS 1.14
These release notes only cover the differences from the previous stable/dev branch split
(1.12.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
Erlang bindings.
virt-alignment-scan is a new tool to check the alignment of
partitions within virtual machines or disk images.
virt-sparsify is a new tool to make virtual machine disk images
sparse.
virt-sysprep is a new tool to make cloning guests from a template
simpler.
guestfish
- New commands setenv, unsetenv, to set environment variables.
- The input file and line number is printed in error messages.
- guestfish progress bars are now a "mini-library" used by other
tools too.
guestmount
- the --live option (for access to live VMs) now works.
virt-cat
- virt-cat can now handle Windows paths and drive letters (RHBZ#693359).
virt-filesystems
- the MBR partition type byte is displayed in --long output.
virt-make-fs
- virt-make-fs now sets the MBR partition type byte correctly,
improving compatibility with Windows (RHBZ#746295).
virt-resize
- virt-resize can now work with guests using extended and logical
partitions, in particular Ubuntu guests.
- virt-resize can now align the first partition of Windows guests,
improving performance. The new virt-resize --align-first option
controls this behaviour.
- The virt-resize --machine-readable flag makes it possible to use
virt-resize from other programs.
- Partitions are now aligned to 128 sectors (usually 64K) by
default. This improves efficiency on high-end storage. The new
virt-resize --alignment option allows the alignment to be
adjusted.
virt-win-reg
- The syntax for deleting registry keys and values is documented
in the man page (RHBZ#737944).
library
- non-printing characters are escaped correctly in debug output.
- GUESTFS_EVENT_ENTER is a new event type generated whenever a
libguestfs function is called.
- the library contains systemtap/DTrace probes.
- the library can now be compiled without hivex (RHBZ#723474).
inspection
- Improve detection of Windows disks.
- Adds support for:
ttylinux - a minimal Linux
Mageia (thanks Michael Scherer)
OpenSUSE and zypper (thanks Michael Scherer, Vincent Untz)
Ubuntu logos (thanks Michael Scherer)
NetBSD and pkgsrc (thanks Michael Scherer)
- Handle some guest types that use /dev/root in /etc/fstab.
- Fix handling of guests with > 26 disks (thanks Matthew Booth)
- Add support for guests with HP Smart Array disks (thanks Matthew Booth)
febootstrap
- FEBOOTSTRAP_KERNEL, FEBOOTSTRAP_MODULES environment variables can
be set in order to choose which kernel to use for the appliance.
misc
- ArchLinux support now working with Linux 3.0 (thanks Erik Nolte)
- libvirt disks marked <readonly/> are now added readonly when
using the virt-tools '-d' option.
Security
(no security problems were found or fixed in this release)
New APIs
compress-out, compress-device-out, copy-device-to-device,
copy-device-to-file, copy-file-to-device, copy-file-to-file,
get-smp, part-to-partnum, set-smp.
The mount API no longer implicitly adds -o sync,noatime options.
add-domain has a new 'readonlydisk' optional parameter to control
how <readonly/> disks are handled.
Internals
- Coverity was run on the source and more bugs were identified and
fixed.
- PCRE library is now required to build libguestfs.
- APIC is now the default for the appliance. You can also enable
SMP support in the appliance.
- OCaml bindings now correctly acquire GC lock during callbacks.
- Out of tree builds should now work correctly (thanks Hilko Bengen).
- ./configure --with-extra="..." can be used by packagers to set
the extra version string.
- zero, zero-device APIs: if the blocks already contain zeroes,
don't write zeroes, so that we don't unnecessarily make the
underlying storage non-sparse.
- is-zero, is-zero-device APIs: optimize these so zero detection is
faster.
Bugs fixed
- 748266 libguestfs should detect versions of qemu which require -machine pc option
- 747290 libguestfs ignores <readonly/> in libvirt XML
- 747287 Misleading error message when permission denied opening a disk image
- 746295 virt-make-fs doesn't set partition ID
- 744795 guestmount --live is not usable
- 737944 virt-win-reg hyphen (delete key) syntax may be wrong, and is not documented
- 733297 ruby event handlers fail with "exception in callback: wrong argument type Proc (expected Data)"
- 731744 libguestfs should escape special/non-printing characters in debug output
- 729887 appliance crashes running aug_init with flags=4
- 729075 libguestfs confuses Hp_recovery partition with Windows root filesystem
- 727178 error: luks_open: cryptsetup: error while loading shared libraries: libfipscheck.so.1: cannot open shared object file: No such file or directory
- 726739 libguestfs: error: aug_get: no matching node, trying to find hostname
- 723474 If hivex and/or pcre not installed, libguestfs fails to compile
- 693359 virt-cat and virt-edit don't handle case sensitive NTFS paths properly
- 678231 virt-inspector reports unknown filesystem UUID
- 671082 libguestfs does not work with kernel-rt
- 666578 libguestfs: unknown filesystem label SWAP-sda2
- 642821 virt-resize falls over on a disk image with a logical swap partition
RELEASE NOTES FOR LIBGUESTFS 1.12
These release notes only cover the differences from the previous stable/dev branch split
(1.10.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
guestfish
- guestfish strings can use escapes,
eg. ><fs> write /foo "line 1\nline 2\n"
- guestfish write-append command can be used to append to files.
- Long-running file uploads and downloads can be cancelled through the
API or by hitting ^C in guestfish.
- New guestfish "display" command for displaying graphical files
inside guests.
- In guestfish, tab completion now works on /dev/mapper devices.
virt-inspector
- Inspection API can get an icon or logo for certain guests.
- virt-inspector includes the logo and hostname for certain guests.
- virt-inspector can now get the version and release numbers for RPM
packages.
- CentOS and Scientific Linux are now treated as separate distros by
the inspection API.
virt-resize
- virt-resize can now handle btrfs.
- New virt-resize --ntfsresize-force option allows Windows VMs to be
resized multiple times.
other virt tools
- guestfish, guestmount, virt-cat, virt-df, virt-edit, virt-filesystems,
virt-inspector, virt-ls and virt-rescue now allow you to use
"-d UUID" option to specify a guest by UUID. This makes them more
robust to use from other programs.
- virt-ls -lR option allows complex file iteration and guest analysis.
- virt-win-reg supports HKEY_USERS\<SID> and HKEY_USERS\<username>.
- virt-win-reg new option --unsafe-printable-strings allows printable
strings to be displayed in the output (unsafely: read the documentation
before using).
- virt-edit has been rewritten in C.
API and language bindings
- Java is now completely supported.
See http://libguestfs.org/guestfs-java.3.html
- JRuby is supported via the Java bindings.
- guestfs_close now appears in trace messages.
- Python binding adds explicit g.close() method.
- Python programs can now use the new event API.
- Python GIL is released during libguestfs calls, allowing multithreaded
Python programs to work properly.
- 9pfs (Plan 9 filesystems exported from the host) are now supported.
- Add -DGUESTFS_WARN_DEPRECATED=1 to warn about use of deprecated API
functions in C programs.
- New manual page guestfs-recipes(1) with recipes.
- mkfs-opts can now set inode size and sector size on created filesystems
(thanks Nikita Menkovich).
- guestfs_last_errno is now accessible from OCaml (as g#last_errno ()).
Security
- optargs_bitmask is checked even for calls that have no optional
arguments. This closes a possible exploit in the daemon from
untrusted callers.
New APIs
btrfs-filesystem-resize, get-pgroup, inspect-get-icon, is-zero,
is-zero-device, list-9p, list-dm-devices, mount-9p, ntfsresize-opts,
set-pgroup, write-append
Internals
- Coverity (a static analysis tool) was run across the codebase and
many fixes were made.
- Generator can handle functions that return RBufferOut and have
optional arguments.
- Compatible with Perl 5.14.
- Compatible with gcc 4.6.
- Perform safety checks on QEMU.
- C API tests can now fully test calls that have optional arguments.
- Use ./configure --enable-install-daemon to install /usr/sbin/guestfsd.
- po-docs directory now covers all man pages.
- stderr from qemu process is now captured by the event subsystem.
Bugs fixed
- 602997 part-get-bootable gives wrong result with an unordered part layout
- 661280 virt-rescue: panic when shutting down: "/sbin/reboot: No such file or directory"
- 700369 qemu-system-x86_64 says 'KVM not supported for this target'
- 705200 guestmount attempt results in access denied
- 714981 'list-filesystems' does not know about virtio 9p filesystems or detect existing mounts
- 717786 libguestfs python bindings should have an explicit close call
- 721275 virt-resize in F16 should support btrfs
Release notes for libguestfs 1.10.0
These release notes only cover the differences from the previous stable/dev branch split
(1.8.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
- libguestfs and tools can be used against live virtual machines.
See the 'guestfish --live' and 'guestmount --live' options, and (for
the low-level interface) the new APIs set-attach-method and
get-attach-method.
- New virt tools:
virt-copy-in, virt-copy-out, virt-tar-in, virt-tar-out.
- libguestfs can get the drive letter mappings for Windows guests.
- virt-inspector displays drive letter mappings for Windows guests.
- Drive letters can now be used in virt-edit and guestfish programs
when operating on Windows guests.
- virt-resize now works on 32 bit hosts.
- You can now inspect the install disks and live CDs of many different
operating systems.
- guestfish <! cmd which executes a shell cmd and inlines the result.
- guestfish, guestmount, virt-rescue now all support --ro and --rw
options, and the default for this can be chosen via a configuration
file (/etc/libguestfs-tools.conf).
- New event API allows more than one callback to be registered for
each event, makes it possible to call the API from other languages,
and allows nearly all log, debug and trace messages to be rerouted
from stderr.
- Greater FHS compliance for temporary files, including using /var/tmp
for large cached files that should survive reboot (instead of /tmp).
- guestfish, guestmount -m option allows mount options to be passed
through to the underlying filesystem.
- mkfs-opts allows filesystem features to be specified.
- More intelligent handling of mountpoints, allowing mkmountpoint, mount
and umount-all commands to work together properly.
- Trace messages are prefixed with a distinct string, allowing them to
be easily 'grepped' out from debug output.
- guestfs_launch (guestfish 'run' command) now produces progress
messages (a guestfish progress bar) if it takes longer than 5
seconds to run.
- Several long-running commands where we are unable to estimate time
to completion generate "pulse mode" progress events. Progress bar
in guestfish has been updated to display these.
- Publish new example code in: C, Perl, Python, OCaml, Ruby.
- New virt-dhcp-address example program.
- The Java and Ruby bindings have been improved greatly.
- Perl includes a way to get the errno of the last error.
- Python bindings now compatible with rpyc (thanks Erez Shinan).
- Transifex is now being used to manage translations.
http://www.transifex.net/projects/p/libguestfs/
- Inspection now supports Red Hat Desktop, Slackware distributions.
- Inspection no longer fails for Windows guests that have two or
more disks.
- Inspection can now tell the difference between Windows 2008 Server
and Windows 7.
- Inspection can detect 32 bit applications installed in 64 bit
Windows, running on the WOW64 emulator.
- A series of protocol fixes has fixed the old bug RHBZ#576879
which used to cause errors during the upload command to lose
protocol synchronization.
- New logo!
Security
[none]
New APIs
first-private, get-attach-method, inspect-get-drive-mappings,
inspect-get-product-variant,
inspect-get-windows-current-control-set, next-private, resize2fs-M,
set-attach-method.
Internals
- The 'HACKING' file is obsolete. The contents have been moved into
a section of the guestfs(3) manual page.
- libguestfs-test-tool simplified. It no longer needs the static
binary or tries to construct an ISO.
- rpcgen-generated files are compiled with -fno-strict-aliasing
which should be safer (thanks Matt Booth).
- virt-resize was rewritten in OCaml.
- guestfish and other tools tested with valgrind; some memory leaks
were fixed.
Bugs fixed
- 502533 Updated Polish translation of libguestfs
- 576879 libguestfs protocol loses synchronization if you 'upload' before mounting disks
- 599503 document that mkmountpoint and umount-all cannot be mixed
- 617440 guestfish: fails to tilde expand '~' when the $HOME env is unset
- 664558 RFE: Allow to set log callback in Ruby bindings
- 665358 Punjabi Translation Completed (pa_IN)
- 666577 libguestfs: unknown filesystem /dev/fd0
- 667610 Multiple bugs, memory leaks in libguestfs ruby bindings
- 668112 virt-filesystems command fails on guest with corrupt filesystem label
- 668574 guestfish -i is trying to mount all mounts from /etc/fstab and fails with an error when device doesn't exists
- 673479 Add a grep-friendly string to LIBGUESTFS_TRACE output
- 674130 Inspection code fails for Windows guest with two disks
- 682756 libguestfs trace segfaults when list-filesystems returns error
- 682979 libguestfs incorrectly detects Red Hat desktop as 'redhat-based' instead of 'redhat'
- 690819 mkfs fails creating a filesystem on a disk device when using a disk with 'ide' interface
- 691389 Extended attributes don't work over guestmount (FUSE)
- 691724 virt-inspector reports unknown filesystem /dev/vda1
- 692545 inspect-list-applications fails to detect 32 bit apps installed under WOW64 emulator on 64 bit Windows
- 693324 sfdisk's python interface only accepts lists of type 'list' for the lines parameter
Release notes for libguestfs 1.8
These release notes only cover the differences from the previous stable/dev branch split
(1.6.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
- Support and packages for Debian and Ubuntu.
- Daily builds from git repository on Debian and Ubuntu to reduce risk
of regressions.
- Port to ArchLinux 'pacman' (thanks Thomas S Hatch).
- The following tools have been rewritten in C (originally in Perl):
. virt-cat
. virt-df
. virt-inspector
. virt-ls
. virt-rescue
- Some C tools support encrypted guests automatically. This is
supported in: guestfish, guestmount, virt-cat, virt-inspector,
virt-ls.
- New tool virt-filesystems (in C) which is a replacement for
virt-list-filesystems and virt-list-partitions, and has a superset
of the functionality of those tools.
- guestfish, guestmount and the C tools use unified command line option
parsing, so they support many common options such as '-a disk.img',
'-d libvirt-domain', '-x', '-v'. The old command line option
parsing is preserved for compatibility in scripts etc.
- guestfish no longer has any dependencies on Perl
- New man pages containing programming examples: guestfs-examples(3) (C/C++),
guestfs-ocaml(3), guestfs-python(3), guestfs-ruby(3).
- Trace mode prints return values from API functions.
- virt-inspector can list applications installed in Windows guests, along
with a great deal of information about those applications.
- Add support for inspecting: Linux Mint, Mandriva, FreeBSD.
- guestfish --rw option (with no effect currently) to make potentially
dangerous write access explicit.
- guestfish --listen --csh for compatibility with csh, tcsh (thanks
Eric Blake).
- The first upstream version that introduced each API function is now
documented in guestfs(3).
- guestfs_last_errno allows you to retrieve the errno from the
daemon, correctly translated to the local operating system.
- Functions can now have optional parameters.
- Progress bars and progress notifications can now happen for upload
commands.
- Appliance builder more careful about not leaving temporary files
around in /tmp.
- getfattr/setfattr commands added to virt-rescue.
- ROADMAP file covers roadmap and goals for future releases.
Security
- New SECURITY section in guestfs(3) API documentation.
- virt-inspector no longer runs any guest commands.
- Inspection code is more careful about avoiding very large files
from guests which might previously have caused a denial of service.
- FUSE calls into guestmount are now traced when using guestmount -x.
New APIs
- add-domain
- add-drive-opts
- getxattr
- inspect-get-hostname
- inspect-get-package-format
- inspect-get-package-management
- inspect-get-roots
- inspect-list-applications
- lgetxattr
- mkfs-opts
Internals
- C programs now only link precisely with the libraries that they use.
- PCRE, libmagic, hivex and libvirt libraries are now completely
optional for building.
- Multiple memory leaks and file descriptor leaks fixed.
- Add a POD wrapper to unify generation of man pages and HTML files
across all programs.
- Source includes phony images of Fedora, Debian, Ubuntu and
Windows guests.
- Ruby bindings have 'make install' rule.
- <guestfs.h> is now a single file.
- <guestfs.h> does not require XDR headers.
- ocaml xml-light library is no longer required to build (thanks
Maxim Koltsov).
- ./configure --disable-[...] for each language binding (thanks
Maxim Koltsov).
- Old ocaml-viewer program removed (use guestfs-browser instead).
- New C API test type 'InitScratchFS' makes the tests run a little
more quickly.
- Excluded packages in the appliance are now listed in a separate
file appliance/excludelist.in, and can be customized per-distro.
Bugs fixed
- 663407 readlink and readlinklist returns /sysroot/ in some paths
- 661280 virt-rescue: panic when shutting down: "/sbin/reboot: No such file or directory"
- 657499 checksum: wrong check sum type causes umount to fail
- 655554 Whole disk paths are not made canonical by virt-inspector
- 654638 openssl updated to 1.0.0b libguestfs depends on exact file names
- 652796 ruby bindings not installed by 'make install', hence omitted from the binary distribution
RELEASE NOTES FOR LIBGUESTFS 1.6
These release notes only cover the differences from the previous stable/dev branch split
(1.4.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
- Use a new method for creating and caching the appliance. This
greatly improves the performance of libguestfs, often by a factor
of x 4 to x 5.
- Support for guest inspection (like virt-inspector) via the ordinary
API and all language bindings. 'guestfish -i' option is as a side-
effect much quicker.
- virt-inspector and core inspection API can now detect guests running:
Fedora, Debian, Ubuntu, Windows, Red Hat Enterprise Linux, CentOS,
Scientific Linux, Gentoo, Pardus, Arch Linux, MeeGo.
- Support for LUKS whole-disk encryption in guests.
- PHP bindings.
- Progress messages (and progress bars in guestfish and virt-resize)
for certain long-running operations.
- virt-df is now much more efficient. Use '--one-per-guest' to restore
the old per-guest isolation behaviour.
- guestfish 'copy-in' and 'copy-out' commands for copying files and
directories recursively in and out of the guest.
- guestfish 'hexedit' command for doing binary edits to devices and
files.
- Change guestfish -i syntax to allow commands to be specified on the
command line (retaining backwards compatibility).
- guestfish '-d <domain>' for adding disks from libvirt domains.
- guestfish '-N' option supports several new prepared disk image types:
lvfs : disk with LV formatted with filesystem
lv : disk with LV
bootroot : boot+root
bootrootlv : boot and root on LV
- guestfish 'more' and 'edit' commands now work with arbitrary files.
- guestfish '--echo-keys' option allows you to echo keys/passphrases
while typing them.
- guestmount now supports -a / -d / -i options, like guestfish.
- Use virtio-serial for communications with the appliance. This
also has a major performance benefit.
- virt-edit '-b' option to create a backup of edited files.
- virt-edit '-e' option for non-interactive edits to files.
- Ability to capture core dumps from the appliance (thanks Matthew Booth).
- virt-rescue now shuts down cleanly (thanks Matthew Booth).
- virt-rescue now has a --network option to enable network access.
- virt-resize can now handle guests which use GPT partition table format.
- virt-resize has better support for shrinking guests.
- virt-resize supports qcow2-format guests.
- $TMPDIR can be used to override almost all temporary directory usage.
- OCaml users can use an alternate OO-style of coding, eg. g#launch ()
- The API supports calls which take optional parameters, eg.
$g->add_drive_opts ("disk", readonly => 1);
- Trace output now escapes and shortens large strings (thanks
Matthew Booth).
- Autosync is now on by default, resulting in more reliable behaviour
when the handle is closed.
- virt-df --uuid option allows you to follow a domain across migration
and renaming.
- Translations of manual pages.
Security
- CVE-2010-3851 libguestfs: missing disk format specifier when adding a disk
https://www.redhat.com/archives/libguestfs/2010-October/msg00036.html
This is comprehensively fixed in this release, and the fix will be
backported to the other stable branches after more testing.
- virt-inspector no longer relies on untrusted guest code to list
applications in some guests.
New APIs
download-offset, file-architecture, findfs-label, findfs-uuid,
inspect-os, inspect-get-arch, inspect-get-distro,
inspect-get-filesystems, inspect-get-major-version,
inspect-get-minor-version, inspect-get-mountpoints,
inspect-get-product-name, inspect-get-type, is-blockdev, is-chardev,
is-fifo, is-lv, is-socket, is-symlink, list-filesystems, luks-add-key,
luks-close, luks-format, luks-format-cipher, luks-kill-slot,
luks-open, luks-open-ro, lvm-clear-filter, lvm-canonical-lv-name,
lvm-set-filter, part-to-dev, pread-device, pwrite-device,
upload-offset
Internals
- Use size_t for loop iterators.
- Refactor the library code into separate files.
- Refactor the generator code into separate files.
- Generate guestfish commands.
- guestfish & guestmount options processing is unified.
- Protocol changes:
error message size increased to 64K
send errno to library
- Add 'make bindist' to make a binary distribution.
- Cleaner behaviour under valgrind.
- More testing of the guestfish command line options and libvirt
integration.
- The Perl inspection code is no longer used by any of the tools.
Bugs fixed
- 646822 libguestfs trace mode should not print long binary strings
- 646821 virt-df should have --uuid option
- 646432 /dev/mapper paths should not be returned from guestfs_mountpoints
- 643624 libguestfs tools documentation should describe how to quote guest domain names from shell
- 642934 No way to specify disk format when adding a disk to libguestfs
- 642933 guestfs_list_filesystems should be used in all possible places
- 642932 guestmount options should match guestfish options
- 642930 virt-inspector (Sys::Guestfs::Lib) should use C inspection APIs
- 642929 C inspection code should ignore /dev/fd* in /etc/fstab
- 642826 virt-resize converts any other image format to raw without notifying user, instructions do not account for this
- 640961 Document that grub-install might be needed for old Linux guests after virt-resize
- 639986 virt-df --csv does not properly quote " in libvirt domain names
- 639405 Interrupted cached appliance creation leaves libguestfs unusable
- 638901 Appliance filename should not contain repository name
- 638899 /dev/mapper paths should not be returned from C inspection APIs
- 636918 Updates to Spanish translation
- 636061 [abrt] guestfish-1.2.11-1.fc12: malloc_consolidate: Process /usr/bin/guestfish was killed by signal 11 (SIGSEGV)
- 635969 glob echo mkfs ext2 /dev/vd[b-t]1 prints garbage
- 634246 guestfs_part_get_parttype returns "loop" when run against a partition, LV or filesystem
- 633766 virt-resize --shrink fails
- 633357 Updates to Spanish translation
- 633096 virt-resize calculates block device size incorrectly, doesn't work with qcow2 target
- 629593 Dutch translation added
- 627556 Updates to Spanish translations of libguestfs
- 626843 Updates to Spanish translations
- 619793 [RFE] Need a way to determine if a particular block device is a logical volume
- 618556 virt-rescue return none zero value when exit
- 617200 mount operation failed and hung on some images which running in read-only mode
- 610880 libguestfs should set broader read perms on tmpdir, so works in some situations when executed with umask 077
- 599503 document that mkmountpoint and umount-all cannot be mixed
- 571714 Running virt-df on disk image relabels it, so qemu can no longer write to it.
- 502533 Updated Polish translation of libguestfs
RELEASE NOTES FOR LIBGUESTFS 1.4
These release notes only cover the differences from the previous stable/dev branch split
(1.2.0). For detailed changelogs, please see the git repository, or the ChangeLog file
distributed in the tarball.
New features
- guestfish lets you choose a prepared disk image, eg:
guestfish -N fs:ext4
- Add write support to guestmount (FUSE) module.
- virt-resize can now resize the content of partitions and logical
volumes in the guest, and we have better support for shrinking guests.
- Bash tab-completion script for guestfish.
- Add ZFS support to virt-rescue.
- New tool 'virt-make-fs' for creating filesystems with content.
- Allow suffixes on any guestfish number parameter, eg. "1M".
- guestfish 'man' command opens the manual page.
- guestfish supports a "heredoc" syntax for uploading files:
upload -<<_end_ /foo
content
_end_
- Some guestfish commands now print their output in octal or hex
where appropriate (RHBZ#583242).
- Allow dash prefix on guestfish command line. This ignores any
error from the second command: (RHBZ#578407)
guestfish -- cmd1 : -cmd2 : cmd3
- guestfish -h / help command now returns an error for non-existent
commands (RHBZ#597145).
- New 'supported' command in guestfish to list optional groups of
commands which are supported by the daemon / configuration.
- virt-inspector and guestfish -i now work for filenames which
contain spaces (RHBZ#507810).
- Change the protocol to use link-local addresses, to avoid
conflicting with any address that the host might be using
(RHBZ#588763).
- libguestfs now sets the correct time and timezone on filesystem
modifications.
- Sort the domains into alphabetical order in virt-df.
- Make mkfs-b command work for FAT and NTFS by mapping the blocksize
parameter to the cluster size (RHBZ#599464).
- Add version numbers to Perl modules (RHBZ#521674).
- Localization now works for all the libguestfs tools (RHBZ#559963).
- Tools now support filesystem-on-image VMs (RHBZ#590167).
- virt-list-partitions has a '-t' option to show the total size of disks.
- Include extra Augeas lenses in the supermin appliance (Matthew Booth).
- Add error and close callbacks.
- Add explicit close method in the Perl API.
- Multiple fixes for RHEL 5 compatibility.
- Multiple fixes for Debian/Ubuntu compatibility.
- Multiple revisions to improve the documentation.
Security
- Fix a potential DoS in virt-inspector and virt-v2v if a specially
crafted disk image contained a char device in place of one of the
configuration files that we read under /etc (RHBZ#582484).
New APIs
- aug-clear - clear Augeas path
- available-all-groups - return a list of all optional groups
- base64-in - upload base64-encoded data to file
- base64-out - download file and encode as base64
- checksum-device - compute checksums on the contents of a device
- checksums-out - compute checksums of multiple files in a directory
- debug-upload - upload a file to the appliance
- fallocate64 - preallocate a file in the guest filesystem
- fill-pattern - fill a file with a repeating pattern of bytes
- get-umask - get the current umask
- lvresize-free - expand an LV to fill free space
- ntfsresize - resize an NTFS filesystem
- ntfsresize-size - resize an NTFS filesystem (with size)
- part-del - delete a partition
- part-get-bootable - get the bootable flag of a partition
- part-get-mbr-id - get the MBR type byte of a partition
- part-set-mbr-id - set the MBR type byte of a partition
- pvresize-size - resize a physical volume (with size)
- pwrite - write to part of a file
- resize2fs-size - resize an ext2/3/4 filesystem (with size)
- txz-in - unpack compressed tarball to directory (RHBZ#580556)
- txz-out - pack directory into compressed tarball (RHBZ#580556)
- vfs-label - get the filesystem label
- vfs-uuid - get the filesystem UUID
- vgscan - rescan for LVM physical volumes, volume groups and logical volumes
- write - create a new file
- zero-device - write zeroes to an entire device
Internals
- Extend the generator to support testing optional features.
- Stricter checks on input parameters to many calls (RHBZ#501893 RHBZ#501894)
- Extend the protocol to support sending arbitrary 8 bit data buffers.
- Ship 'BUGS' file with releases. This is a summary of the bugs in
the Red Hat Bugzilla database.
- Ship 'RELEASE-NOTES' file with releases, containing release notes.
- Unify supermin appliance building into one place, in febootstrap 2.7.
- Fix the protocol code to handle the case where both ends send cancel
messages at the same time.
Bugs fixed
- 612178 guestfish: using -m option in conjunction with --listen option causes appliance to die
- 610880 libguestfs should set broader read perms on tmpdir, so works in some situations when executed with umask 077
- 604691 OCaml bindings are not thread safe
- 603870 Updates to Spanish translation
- 602592 [RFE] expose guestfs_close in perl bindings
- 600977 virt-df -h --csv "Argument .. isn't numeric in printf"
- 599464 mkfs-b does not support vfat/ntfs
- 598807 add_cdrom does not work in RHEL 6
- 598309 part-list and several other cmd failed on libguestfs on RHEL5
- 597145 guestfish 'help' command should indicate error in exit status with an unknown command
- 597135 guestfish write-file cmd does not check "size" parameter
- 597118 A warning should be given in the help of mke2journal-L for the length of label
- 597112 get-e2uuid should use blkid instead of "tune2fs -l" to get filesystem UUID
- 596776 virt-inspector doesn't discover modprobe aliases on RHEL 3 guests
- 596763 Updates to Spanish translation
- 593292 Updates to Spanish translation
- 592883 can not edit files on images mounted with guestmount cmd
- 592360 Updates to Spanish translation
- 591250 virt-tar prints "tar_in: tar subcommand failed on directory" if the archive is compressed or not in the right format
- 591155 virt-tar prints "tar_in: tar subcommand failed on directory" if a disk image is not writable
- 591142 virt-inspector should give an error for unrecognized disk images
- 590167 virt-inspector and other virt tools should be able to handle filesystem-on-image VMs
- 589039 guestfish read-file cmd will cause daemon hang when read large files
- 588851 guestfs_launch() returns -1, but guestfs_last_error() == NULL
- 588763 libguestfs should use non-public or link-local addresses for appliance network
- 588733 Updates to Spanish translation
- 588651 guestfish 'strings-e' cmd does not give proper error message or hint
- 587484 lvresize can't reduce size of a volumn
- 585961 Updates to Spanish translation
- 585223 ntfsresize should support shrinking filesystems
- 585222 pvresize should support shrinking PVs
- 585221 resize2fs should support shrinking filesystems
- 584038 Updates to Spanish translation
- 583554 [FEAT] mknod-mode command is needed to set mode explicitly
- 583242 [RFE] guestfish should print outputs in a suitable base (eg. octal for modes)
- 582993 guestfish eats words when tab completing case (in)sensitive paths
- 582953 Misleading help information about lvcreate command
- 582948 mknod command doesn't make block, character or FIFO devices
- 582929 mknod doesn't check for invalid mode
- 582901 guestfish chmod/umask commands do not check invalid mode value
- 582899 guestfish:sparse is missed from command autocomplete list
- 582891 [Feature Request] behavior and return value of guestfish umask cmd should be changed
- 582548 [mknod] umask shouldn't take effect when mode is set explicitly
- 582484 some guestfish sub commands can not handle special files properly
- 582252 Updates to Spanish translation
- 581501 Updates to Spanish translation
- 580650 virt-inspector warns "No grub default specified at /usr/lib/perl5/Sys/Guestfs/Lib.pm at [...]"
- 580556 request for libguestfs to support .txz tarballs
- 580246 tar-in command hangs if uploading more than available space
- 580016 aug-ls in guestfish does not take augeas variable as argument
- 579664 guestfish doesn't report error when there is not enough space for image allocation
- 579608 multiple commands in guestfish can not work for symbol links
- 579155 libguestfs hangs if qemu doesn't start (in null vmchannel mode)
- 578407 the prefix '-' in sub-command isn't handled by guestfish in remote control mode
- 576879 libguestfs protocol loses synchronization if you 'upload' before mounting disks
- 559963 libguestfs Perl programs do set locale, but still localization doesn't work
- 521674 Perl modules are unversioned, but should carry version numbers
- 516096 Race condition in test_swapon_label_0: /sbin/blockdev: BLKRRPART: Device or resource busy
- 507810 guestfish -i / virt-inspector cannot handle spaces in filenames
- 502533 Updated Polish translation of libguestfs
- 501894 Some String parameters should be OptString
- 501893 String parameters should be checked for != NULL
- 501889 write-file does not support strings containing ASCII NUL
- 484986 grub-install fails on virtio disk
RELEASE NOTES FOR HISTORICAL VERSIONS OF LIBGUESTFS
Before 2010 libguestfs did not have official release notes or a formalized version
numbering system. However these are links to historically significant versions.
2009-11-10 (1.0.78)
https://www.redhat.com/archives/libguestfs/2009-November/msg00095.html
2009-09-13 (1.0.67)
https://www.redhat.com/archives/libguestfs/2009-August/msg00281.html
2009-07-23 (1.0.64)
https://www.redhat.com/archives/libguestfs/2009-July/msg00059.html
2009-07-14 (1.0.59)
https://www.redhat.com/archives/libguestfs/2009-July/msg00023.html
2009-04-01 (the initial announcement)
http://rwmj.wordpress.com/2009/04/01/libguestfs-access-and-modify-virtual-machine-disk-images/
SEE ALSO
guestfs-examples(1), guestfs-faq(1), guestfs-performance(1), guestfs-recipes(1),
guestfs-testing(1), guestfs(3), guestfish(1), http://libguestfs.org/
AUTHOR
Richard W.M. Jones
COPYRIGHT
Copyright (C) 2009-2019 Red Hat Inc.
LICENSE
This program is free software; you can redistribute it and/or modify it under the terms of
the GNU General Public License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program;
if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA.
BUGS
To get a list of bugs against libguestfs, use this link:
https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools
To report a new bug against libguestfs, use this link:
https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools
When reporting a bug, please supply:
• The version of libguestfs.
• Where you got libguestfs (eg. which Linux distro, compiled from source, etc)
• Describe the bug accurately and give a way to reproduce it.
• Run libguestfs-test-tool(1) and paste the complete, unedited output into the bug
report.