cryptsetup-reencrypt --version (return code: 0)
crypt_reencrypt 1.6.6
cryptsetup-reencrypt --help (return code: 0)
crypt_reencrypt 1.6.6
Usage: cryptsetup-reencrypt [OPTION...] <device>
--version Print package version
-v, --verbose Shows more detailed error messages
--debug Show debug messages
-B, --block-size=MiB Reencryption block size
-c, --cipher=STRING The cipher used to encrypt the disk (see
/proc/crypto)
-s, --key-size=BITS The size of the encryption key
-h, --hash=STRING The hash used to create the encryption
key from the passphrase
--keep-key Do not change key, no data area
reencryption.
-d, --key-file=STRING Read the key from a file.
-i, --iter-time=msecs PBKDF2 iteration time for LUKS (in ms)
-q, --batch-mode Do not ask for confirmation
-T, --tries=INT How often the input of the passphrase can
be retried
--use-random Use /dev/random for generating volume key.
--use-urandom Use /dev/urandom for generating volume
key.
--use-directio Use direct-io when accessing devices.
--use-fsync Use fsync after each block.
--write-log Update log file after every block.
-S, --key-slot=INT Use only this slot (others will be
disabled).
--keyfile-offset=bytes Number of bytes to skip in keyfile
-l, --keyfile-size=bytes Limits the read from keyfile
--reduce-device-size=bytes Reduce data device size (move data
offset). DANGEROUS!
--device-size=bytes Use only specified device size (ignore
rest of device). DANGEROUS!
-N, --new Create new header on not encrypted device.
Help options:
-?, --help Show this help message
--usage Display brief usage