CRYPTSETUP-REFRESH(8) (NAME) cryptsetup-refresh - (SYNOPSIS) cryptsetup refresh [<>] <> (DESCRIPTION) <> . <> ( unmount ). : LUKS1 LUKS2 ( ) plain crypt loop-AES. open . : --perf-same_cpu_crypt --perf-submit_from_crypt_cpus --perf-no_read_workqueue --perf-no_write_workqueue --allow-discards. ( ) . LUKS2: --integrity-no-journal LUKS2 dm-integrity . --persistent LUKS2 ( ). --disable-keyring dm-crypt . <> : [--allow-discards, --perf-same_cpu_crypt, --perf-submit_from_crypt_cpus, --perf-no_read_workqueue, --perf-no_write_workqueue, --header, --disable-keyring, --disable-locks, --persistent, --integrity-no-journal]. (OPTIONS) --allow-discards discard (TRIM) . LUKS2 . : . . . 3.1 . . --batch-mode, -q . ! --verify-passphrase . --debug --debug-json . # . --debug-json JSON LUKS2 . --disable-keyring dm-crypt . LUKS2 . --disable-locks . LUKS2 . : cryptsetup ( /run ) . --header < LUKS> () LUKS . (ciphertext) LUKS . LUKS ( luksAddKey) LUKS LUKS . --help, -? . --integrity-no-journal ( ). . . --perf-high_priority dm-crypt (writer thread) . (throughput) dm-crypt . dm-crypt dm-crypt . 6.10 . --perf-no_read_workqueue, --perf-no_write_workqueue dm-crypt (synchronous) . dm-crypt dm-crypt . 5.9 . --perf-same_cpu_crypt CPU / (IO) . (unbound workqueue) CPU . dm-crypt dm-crypt . --perf-submit_from_crypt_cpus . (write bios) . bio . dm-crypt dm-crypt . --persistent LUKS2 open refresh . ( crypttab .) --persistent ( discard --persistent --allow-discards ). --allow-discards --perf-same_cpu_crypt --perf-submit_from_crypt_cpus --perf-no_read_workqueue --perf-no_write_workqueue --integrity-no-journal . --usage . --version, -V . (REPORTING BUGS) cryptsetup . --debug . (SEE ALSO) cryptsetup (FAQ) cryptsetup(8), integritysetup(8) veritysetup(8) (CRYPTSETUP) cryptsetup . cryptsetup 2.8.7 2026-07-21 CRYPTSETUP-REFRESH(8)