virt-diff(1) (NAME) virt-diff - (SYNOPSIS) virt-diff [--options] -d domain1 -D domain2 virt-diff [--options] -a disk1.img [-a ...] -A disk2.img [-A ...] (DESCRIPTION) "virt-diff" . . (checksums) (extended attributes) . . (forensics) . -a -d -A -D . : virt-diff -a old.img -A new.img libvirt: virt-diff -d oldguest -D newguest (OPTIONS) --help . -a file --add file file . -a . . --format=.. . -a URI --add URI . "ADDING REMOTE STORAGE" guestfish(1) . --all --extra-stats, --times, --uids --xattrs. --atime (atime) . atime . -A file -A URI . --blocksize=512 --blocksize=4096 --blocksize . . --blocksize . "guestfs_add_drive_opts" guestfs(3) . --checksum --checksum=crc|md5|sha1|sha224|sha256|sha384|sha512 (checksum) . md5 . . . -c URI --connect URI libvirt URI . libvirt . (-a) libvirt . --csv CSV ( ). " CSV" . --dir-links . nlink . --dir-times . . -d guest --domain guest libvirt . UUID . -D guest libvirt . UUID . --echo-keys virt-diff (echo) . (Tempest attacks) . --extra-stats . --format=raw|qcow2|.. --format -a/-A . -a/-A . --format -a/-A . : virt-diff --format=raw -a disk.img [...] raw ( ) disk.img . virt-diff --format=raw -a disk.img --format -a another.img [...] raw disk.img another.img . raw . (CVE-2010-3851). -h --human-readable . --key SELECTOR LUKS LUKS . --key NAME:key:KEY_STRING --key UUID:key:KEY_STRING --key all:key:KEY_STRING "NAME" libguestfs ( "/dev/sda1"). "UUID" (UUID) . "all" . "KEY_STRING" (passphrase). --key NAME:file:FILENAME --key UUID:file:FILENAME --key all:file:FILENAME FILENAME. --key NAME:clevis --key UUID:clevis --key all:clevis Clevis . (NBDE) "ENCRYPTED DISKS" guestfs(3) . QEMU libguestfs . --keys-from-stdin (stdin). /dev/tty . . --times . --time-days ( ). 0 << >> . --time-relative ( ). --time-t (Unix epoch). --uids UID GID. -v --verbose . -V --version . -x (tracing) API libguestfs. --xattrs (extended attributes). CSV (NOTE ABOUT CSV FORMAT) (CSV) . . : . : . : "foo,bar",baz : . : . : "foo bar",baz "csvtool" (https://github.com/Chris00/ocaml-csv ). CSV ( "Text::CSV" csv ). CSV . (EXIT STATUS) . (SEE ALSO) guestfs(3), guestfish(1), virt-cat(1), virt-copy-out(1), virt-ls(1), virt-tar-out(1), http://libguestfs.org. (AUTHOR) Richard W.M. Jones http://people.redhat.com/~rjones (COPYRIGHT) Copyright (C) 2009-2025 Red Hat Inc. (LICENSE) (GNU General Public License) ( ) . . . : Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. (BUGS) libguestfs : https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools libguestfs : https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools : o libguestfs. o libguestfs ( ). o . o libguestfs-test-tool(1) . guestfs-tools-1.56.0 2026-07-11 virt-diff(1)