FSFREEZE(8) FSFREEZE(8) fsfreeze - (Ext3/4 ReiserFS JFS XFS) fsfreeze --freeze|--unfreeze _ fsfreeze . fsfreeze . fsfreeze RAID . fsfreeze device-mapper. ( LVM) . dmsetup(8). - . ( mount(8)). atime ( strictatime mount(8)). -f --freeze . write(2) (dirty data) . . (unlinking). (snapshot). -u --unfreeze . . -h --help . -V --version . . (18-12-2016) btrfs ext2/3/4 f2fs jfs nilfs2 reiserfs xfs. . loopback . xfs_freeze(8). Hajime Taira. mount(8) . fsfreeze util-linux . util-linux 2.42.1 2026-05-18 FSFREEZE(8)