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 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 Stretch release: https://snapshot.debian.org/archive/debian/20220823T031903Z/ ... as well as the following git repositories: blktests 676d42c (Thu, 2 Mar 2023 15:25:44 +0900) e2fsprogs archive/debian/1.47.0-1 (Mon, 6 Feb 2023 22:36:16 -0500) fio fio-3.31 (Tue, 9 Aug 2022 14:41:25 -0600) fsverity v1.5-6-g5d6f7c4 (Mon, 30 Jan 2023 23:22:45 -0800) ima-evm-utils v1.3.2 (Wed, 28 Oct 2020 13:18:08 -0400) nvme-cli v1.16 (Thu, 11 Nov 2021 13:09:06 -0800) quota v4.05-53-gd90b7d5 (Tue, 6 Dec 2022 12:59:03 +0100) util-linux v2.38.1 (Thu, 4 Aug 2022 11:06:21 +0200) xfsprogs v6.1.1 (Fri, 13 Jan 2023 19:06:37 +0100) xfstests-bld 35650073 (Mon, 6 Mar 2023 20:48:08 -0500) xfstests v2023.02.26-8-g821ef488 (Thu, 2 Mar 2023 10:23:51 -0500) The gen-image script found in the kvm-xfstests/test-appliance directory of the xfstests-bld git repository, plus Debian jessie'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-2023-03-03-821ef4889 The URL's for the other git repositories and scripts to download the sources from those repositories can be found in xfstests-bld's scripts.