INTEGRITYTAB(5) integritytab INTEGRITYTAB(5) (NAME) integritytab - (dm-integrity) (SYNOPSIS) /etc/integritytab (DESCRIPTION) /etc/integritytab . "#" . . (white space) . : volume-name block-device [keyfile|-] [options|-] (format) . /dev/mapper/ . "UUID=" UUID "PARTUUID=" UUID "LABEL=" "PARTLABEL=" . "-" . "integrity-algorithm" "hmac-sha256" . hmac-sha256 hmac-sha512 phmac-sha256 hmac-sha512. . "-" . : allow-discards (discard TRIM) . . . 250. mode=(journal|bitmap|direct) (journaled) (bitmapped) (direct passthrough) . Journaled . (crash) . Bitmap . Direct . << >> (direct writes) dm-integrity[1] . . journal-* . 254. journal-watermark=[0..100]% (watermark) . (journal flush) . "0%" . 250. journal-commit-time=[0..N] (commit) . ( ) . . 250. data-device=/dev/disk/by-... . integritytab data-device . 250. integrity-algorithm=[crc32c|crc32|xxhash64|sha1|sha256|hmac-sha256|hmac-sha512|phmac-sha256|phmac-sha512] . crc32c . (format) . 250. _netdev . systemd.mount(5) _netdev . integritysetup-pre.target integritysetup.target remote-fs-pre.target remote-integritysetup.target . : (mount point) fstab(5) _netdev . local-fs.target . 258. noauto integritysetup.target . . noauto . 258. nofail (hard dependency) integritysetup.target . . . nofail . 258. systemd-integritysetup-generator(8) systemd . (EXAMPLES) 1. /etc/integritytab . home PARTUUID=4973d0b8-1b15-c449-96ec-94bab7f6a7b8 - journal-commit-time=10,allow-discards,journal-watermark=55% data PARTUUID=5d4b1808-be76-774d-88af-03c4c3a41761 - allow-discards 2. /etc/integritytab home PARTUUID=4973d0b8-1b15-c449-96ec-94bab7f6a7b8 3. /etc/integritytab home PARTUUID=4973d0b8-1b15-c449-96ec-94bab7f6a7b8 - data-device=/dev/disk/by-uuid/9276d9c0-d4e3-4297-b4ff-3307cd0d092f 4. /etc/integritytab HMAC home PARTUUID=4973d0b8-1b15-c449-96ec-94bab7f6a7b8 /etc/hmac.key (SEE ALSO) systemd(1), systemd-integritysetup@.service(8), systemd-integritysetup- generator(8), integritysetup(8) (NOTES) 1. dm-integrity https://docs.kernel.org/admin-guide/device-mapper/dm-integrity.html systemd 261.2 INTEGRITYTAB(5)