Ubuntu Manpage: guestfs-release-notes - libguestfs Release Notes

Provided by: libguestfs0t64_1.52.2-6ubuntu3_amd64

NAME

       guestfs-release-notes - libguestfs Release Notes

RELEASE NOTES FOR LIBGUESTFS 1.50

These are the release notes for libguestfs stable release 1.50. This describes the major
changes since 1.48.

Libguestfs 1.50.0 was released on 7 February 2023.

Language bindings
Fix the PHP bindings for PHP8 (Geoff Amey).

Fix various deprecation warnings in the GObject bindings.

We no longer use the deprecated Python distutils library (thanks Miro Hrončok).

Inspection
When listing the packages in RPM-based guests, the inspection API no longer checks package
signatures. This is because the newer librpm used by libguestfs does not understand
signatures stored in older guests, such as SHA1 used by RHEL 6 (thanks Panu Matilainen).

"guestfs_inspect_get_hostname" in guestfs(3) can now handle /etc/hostname files containing
comments (thanks Dawid Zamirski).

"guestfs_file_architecture" in guestfs(3) can now parse files using zstd compression.

"guestfs_inspect_get_osinfo" in guestfs(3) now returns the correct osinfo field for
Windows 11. However because of decisions made by Microsoft, these guests still return
product name and other strings identifying as Windows 10 (thanks Yaakov Selkowitz, Yongkui
Guo).

API
New APIs

"guestfs_device_name" in guestfs(3) is a new API to read the device name associated with a
drive, for example calling this with 0 will return "/dev/sda".

"guestfs_clevis_luks_unlock" in guestfs(3) is a new API for unlocking disks using the
Clevis/Tang network-based full disk encryption scheme. Furthermore implement this in
guestfish and guestmount (Laszlo Ersek).

"guestfs_inspect_get_build_id" in guestfs(3) is a new API for reading the build ID from
some Linux and Windows guests. It is not widely used on Linux, but for Windows it is
vital for identifying Windows 11.

Other API changes

In the "guestfs_add_drive" in guestfs(3) API, the "name" and "iface" fields are not used.
"name" has not been used since around 2017, but the documentation has only just been
updated to reflect this. "iface" was never allowed for the libvirt backend and didn't
work reliably with the direct backend (Laszlo Ersek).

"guestfs_readdir" in guestfs(3) is no longer limited to the maximum message size but can
read a directory of any size (Laszlo Ersek).

Build changes
Note that the Augeas bindings for libguestfs are no longer bundled with libguestfs and
must be built separately. See: https://people.redhat.com/~rjones/augeas/ For RHEL 7+
rebuilding the Fedora Rawhide package will work.

Note that libguestfs now requires minimum OCaml 4.04. It will not compile on RHEL 6.

Note that zstd is now a required dependency.

OCaml gettext is no longer a dependency of libguestfs. (Plain gettext is still optionally
used to translate C source files.)

Add support for OCaml 4.14.

Fix build for missing stdlib functions in OCaml 4.04.

Fix "./configure --disable-ocaml". OCaml is still required to build libguestfs, but this
now correctly disables the OCaml bindings of the API.

Add support for building on Artix, Rocky and Virtuozzo (Halil Tezcan KARABULUT, Neil
Hanlon, Andrey Drobyshev). In addition when working out the local distro we now look at
$ID_LIKE in /etc/os-release before $ID which helps on Arch (thanks S D Rausty).

Add preliminary support for compiling libguestfs on macOS.

Fix website description of cloning the libguestfs repository (Kashyap Chamarthy).

We no longer use glibc custom printf.

We no longer use "LD_PRELOAD=libSegFault.so" in the appliance. This feature was removed
in glibc 2.35.

We no longer use dtrace / systemtap probes.

Internals
Fix regression tests to use correct paths (Nikolay Shirokovskiy).

Various improvements to qcow2 appliance handling (Andrey Drobyshev).

Disable 5-level page tables in qemu. This avoids a bug in older versions of qemu.

Disable the LVM2 devicesfile in the appliance since it interferes with cloned LVs that
have the same UUID (Laszlo Ersek).

Don't use "-cpu max" on RISC-V as it is not yet supported by qemu's TCG emulation of that
architecture. This will be reenabled when qemu gets support.

Avoid a rare hang that would happen when launching the appliance. This turned out to be
caused by using the unsafe call setenv(3) between fork and exec (thanks Siddhesh
Poyarekar).

When running the file command inside the appliance we now disable seccomp since it
interferes with processing compressed files (thanks David Runge, Toolybird).

Bugs fixed
https://bugzilla.redhat.com/2108425
compile of libguestfs-1.48.4 fails with Error: static declaration of
‘caml_alloc_initialized_string’ follows non-static declaration

https://bugzilla.redhat.com/2064182
SHA 1 signatures required to inspect packages in RHEL 6 guests

https://bugzilla.redhat.com/2033247
document encrypted RBD disk limitation

https://bugzilla.redhat.com/2012658
libguestfs fails to detect Windows 11 guest image

https://bugzilla.redhat.com/1965941
lvm-set-filter failed in guestfish with the latest lvm2 package

https://bugzilla.redhat.com/1844341
The duplicate block device is listed when iface is set to 'virtio'

https://bugzilla.redhat.com/1809453
[RFE] Add support for LUKS encrypted disks with Clevis & Tang

https://bugzilla.redhat.com/1794518
Rewrite libguestfs use of setfiles so that it doesn't stop on ext4 immutable bits

https://bugzilla.redhat.com/1674392
No return values from a directory listing when there are simply too many files in that
directory (NULL value return)

https://bugzilla.redhat.com/1554735
RFE: customize --selinux-relabel should be the default, with --no-selinux-relabel used
to opt out

AUTHORS

       Adolfo Jayme Barrientos
       Andrey Drobyshev
       Emilio Herrera
       Ettore Atalan
       Geoff Amey
       Hela Basa
       Jan Kuparinen
       Kashyap Chamarthy
       Laszlo Ersek
       Marcin Stanclik
       Michał Smyk
       Neil Hanlon
       Nikolay Shirokovskiy
       Pavel Borecki
       Piotr Drąg
       Richard W.M. Jones
       Ricky Tigg
       Temuri Doghonadze
       Yuri Chornoivan

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.

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