Provided by: libguestfs0_1.50.1-4ubuntu1_amd64 bug

NAME

       guestfs-release-notes - libguestfs Release Notes

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

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) 2009-2023 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.