CRYPTSETUP-FVAULT2DUMP(8) (NAME) cryptsetup-fvault2Dump - FileVault2 (SYNOPSIS) cryptsetup fvault2Dump [<>] <> (DESCRIPTION) FVAULT2 ( FileVault2). --dump-volume-key (volume key) FVAULT2 . . . . . <> : [--dump-volume-key, --volume-key-file, --key-file, --keyfile-offset, --keyfile-size, --timeout]. (OPTIONS) --batch-mode, -q . ! --verify-passphrase . --debug --debug-json . # . --debug-json LUKS2 JSON . --dump-volume-key, --dump-master-key ( ) . --volume-key-file . --help, -? . --key-file, -d . "-" (stdin) . . NOTES ON PASSPHRASE PROCESSING cryptsetup(8) . --keyfile-offset . --keyfile-size, -l . --help . . . --keyfile-offset . --timeout, -t () . . --key-file . () . . --usage . --version, -V . --volume-key-file , --master-key-file ( ) . . (REPORTING BUGS) cryptsetup . --debug . (SEE ALSO) cryptsetup (FAQ) cryptsetup(8), integritysetup(8) veritysetup(8) (CRYPTSETUP) cryptsetup . cryptsetup 2.8.7 2026-07-21 CRYPTSETUP-FVAULT2DUMP(8)