These KVM test appliance images are designed to be used with the kvm-xfstests system which can be found here: git://git.kernel.org/pub/scm/fs/ext2/xfstests-bld.git If you are testing a 32-bit x86 kernel you must use the root_fs.img.i386. If you are using a 64-bit x86 kernel, you may use either the i386 or x86_64 root_fs.img file. Information on how to use these images can be found at the Quick Start guide, located at: https://github.com/tytso/xfstests-bld/blob/master/Documentation/kvm-quickstart.md The "corresponding source" of the GPL binaries found in these KVM images can be found in the source packages from this snapshot of Debian distribution's "trixie" release: https://snapshot.debian.org/archive/debian/20250719T144917Z/ ... as well as the following git repositories: blktests 4badb27 (Fri, 31 Oct 2025 19:53:27 +0900) fio fio-3.41 (Fri, 5 Sep 2025 14:21:17 -0600) fsverity v1.7 (Tue, 4 Nov 2025 17:28:17 -0800) ima-evm-utils v1.5 (Mon, 6 Mar 2023 07:40:07 -0500) libaio libaio-0.3.108-82-gb8eadc9 (Thu, 2 Jun 2022 13:33:11 +0200) ltp 20250930 (Tue, 30 Sep 2025 13:53:45 +0200) quota v4.05-77-g22ff3d9 (Tue, 2 Sep 2025 08:12:02 -0400) util-linux v2.41.2 (Mon, 22 Sep 2025 12:56:34 +0200) xfsprogs v6.17.0 (Mon, 20 Oct 2025 16:49:00 +0200) xfstests v2025.11.04-10-gdf376ed02 (Thu, 6 Nov 2025 20:33:17 -0500) xfstests-bld gce-xfstests-202504292206-29-g05dac0d9 (Thu, 6 Nov 2025 22:04:13 -0500) zz_build-distro trixie The gen-image script found in the test-appliance directory of the xfstests-bld git repository, plus Debian trixie's debootstrap, constitutes the scripts used to control the creation of these KVM images. Local changes to xfstests can be found at: https://github.com/tytso/xfstests release-2025-11-06-df376ed02