guestfs-release-notes - libguestfs Release Notes

Authors

       Andrey Drobyshev
       cunshunxia
       Emilio Herrera
       grimst
       HATAYAMA Daisuke
       Jan Kuparinen
       Jürgen Hötzel
       Laszlo Ersek
       Pavel Borecki
       Richard W.M. Jones
       Temuri Doghonadze
       Tian Shixiong
       Yuri Chornoivan
       Zixun LI

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.

libguestfs-1.54.1                                  2025-02-18                      guestfs-release-notes-1.52(1)

Copyright

       Copyright (C) 2009-2024 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.

Name

       guestfs-release-notes - libguestfs Release Notes

Release Notes For Libguestfs 1.52

These are the release notes for libguestfs stable release 1.52. This describes the major changes since
1.50.

Libguestfs 1.52.0 was released on 5January2024.

Languagebindings
The Python bindings now use "bytes" (instead of "str") for the event callback message, since it may
contain arbitrary 8 bit data (thanks Yonatan Shtarkman).

Also in the Python bindings, fix a rare crash, and avoid memory leaks in event callbacks (thanks Yonatan
Shtarkman, Laszlo Ersek, Eric Blake).

Support for OCaml 5, and OCaml ≥ 4.07 is now the minimum (thanks Guillaume Munch-Maccagnoni, Jerry James,
Josh Berdine, Jürgen Hötzel, Vincent Laviron).

The OCaml bindings now release the runtime lock around calls to "guestfs_close", since that call might be
long-running (for example it might have to shut down the appliance and synch disks).

Inspection
Support OpencloudOS (cunshunxia@tencent).

API
SELinux relabelling now runs in parallel, meaning it's a lot quicker (Andrey Drobyshev).

Add support for lzma and zstd compression methods in tar APIs (like "guestfs_tar_in") (Zixun LI).

"guestfs_pvs_full" previously didn't always return the correct device names. This has now been fixed.

"guestfs_btrfs_filesystem_balance" fixed so it now works with more modern btrfs tools (Jürgen Hötzel).

Tools
The guestfish(1) --key option now recognizes LVM names like /dev/mapper/rhel_bootp--73--75--123-root
(Laszlo Ersek).

guestfish --key option also supports a new --keyall:... selector to try the same key on all devices.

In guestmount(1) avoid calling fclose(NULL) on error paths, which might have caused a crash on some
platforms.

Buildchanges
The "RELEASES" file (which listed release dates) has been removed and replaced with a simple
"RELEASE_DATE" macro in ./configure. This should simplify builds.

Optionally passt(1) may be used for networking (Laszlo Ersek).

dhcpcd(8) is now used in preference to dh-client on Red Hat platforms.

Old Ruby "MiniTest" and "Test::Unit" dependencies replaced with new "Minitest".

Fix compatibility issues with libxml2 2.12.

Internals
On x86-64 we now use the more modern q35 machine type when running the appliance. This should perform
slightly better and has more development attention from the qemu community. The change should be
invisible to libguestfs users.

Fix a segmentation fault when "TERM" environment variable was set to "dumb" (Daisuke HATAYAMA).

Avoid a warning on modern Fedora which does not have /selinux (Andrey Drobyshev).

Fix build on OpenSUSE LEAP 15 or other distros with a file(1) command which did not understand the -S
option (thanks Olaf Hering).

Bugsfixed
https://bugzilla.redhat.com/2247057
Remove dependency on dhcp-client in libguestfs

https://bugzilla.redhat.com/2184967
RFE: support passt for appliance networking, as QEMU userspace networking backend

https://bugzilla.redhat.com/2168578
use q35 machine type for libguestfs appliance

https://bugzilla.redhat.com/1910039
virt-dib doesn't work with newer diskimage-builder version on RHEL8