guestfs-tools-release-notes - guestfs tools release Notes
These are the release notes for guestfs tools stable release 1.54. This describes the major changes since 1.52.
Guestfs tools 1.54.0 was released on 21st May 2025.
The upstream git repository is now: https://github.com/libguestfs/guestfs-tools
New --inject-blnsvr which can be used to inject the Windows memory balloon server into guests.
--inject-virtio-win no longer supports the osinfo method (use libosinfo for virtio-win driver information), as it is no longer maintained and had got quite out of date. The default method using virtio-win directory names is more reliable and preferred in all instances (Cole Robinson).
Handle large output of the rpm(1) command when listing drivers in some SUSE guests.
Use the file(1) -S option to disable seccomp protection when we also use the file(1) -z option, as the two options are incompatible and cause crashes on some Linux distros.
Correct the calculation of the target disk. In some cases with the --resize option it was not calculated correctly and partition creation on the target would fail with a confusing error.
We now use stderr consistently for debug messages.
Add support for LoongArch (liuxiang from Loongson).
Fix OCaml bytecode builds (Jerry James, Ilya Leoshkevich).
Allow nbd+unix:// URIs in -a parameters to several tools.
Add a git-publish profile (Kashyap Chamarthy).
json-c is now required. This replaces Jansson which was previously used for parsing JSON input files.
OCaml ≥ 4.08 is now required.
OCaml oUnit is no longer used.
We now assume that __attribute__((cleanup)) always works. This requires gcc or Clang.
Add support for GCC 14 and 15.
Some deprecated autoconf macros are no longer used.
Fix some issues when building on macOS (Mohamed Akram).
The tests were modified to use a set of common functions and remove use of the weird $TEST_FUNCTIONS macro, similar to how we do it in nbdkit.
Some internal OCaml List and String functions that we used have been replaced by ones from the OCaml stdlib, reducing code maintenance.
Fix compatibility with GNU gettext 0.25.
Harden grub2-mkconfig to avoid overwriting /boot/efi/EFI/redhat/grub.cfg
Improve the error info when virt-customize options are used for incompatible guest OS [rhel-9.7]
Improve the error info when virt-customize options are used for incompatible guest OS [rhel-10.1]
CentOS 9 Migration from VMWare to Openshift Virt fails [rhel-9.6]
virt-drivers fails on opensuse guest if kernel-source is installed
Issues building on macOS
Copyright (C) 2009-2025 Red Hat Inc.
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.
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.