Usage: cryptsetup [-?vyrq] [-?|--help] [--usage] [--version] [-v|--verbose]
        [--debug] [-c|--cipher=STRING] [-h|--hash=STRING]
        [-y|--verify-passphrase] [-d|--key-file=STRING]
        [--master-key-file=STRING] [--dump-master-key] [-s|--key-size=BITS]
        [-l|--keyfile-size=bytes] [--keyfile-offset=bytes]
        [--new-keyfile-size=bytes] [--new-keyfile-offset=bytes]
        [-S|--key-slot=INT] [-b|--size=SECTORS] [-o|--offset=SECTORS]
        [-p|--skip=SECTORS] [-r|--readonly] [-q|--batch-mode]
        [-t|--timeout=secs] [--progress-frequency=secs] [-T|--tries=INT]
        [--align-payload=SECTORS] [--header-backup-file=STRING]
        [--use-random] [--use-urandom] [--shared] [--uuid=STRING]
        [--allow-discards] [--header=STRING] [--test-passphrase]
        [--tcrypt-hidden] [--tcrypt-system] [--tcrypt-backup] [--veracrypt]
        [--veracrypt-pim=INT] [--veracrypt-query-pim] [-M|--type=STRING]
        [--force-password] [--perf-same_cpu_crypt]
        [--perf-submit_from_crypt_cpus] [--deferred] [-i|--iter-time=msecs]
        [--pbkdf=STRING] [--pbkdf-memory=kilobytes]
        [--pbkdf-parallel=threads] [--pbkdf-force-iterations=LONG]
        [--priority=STRING] [--disable-locks] [--disable-keyring]
        [-I|--integrity=STRING] [--integrity-no-journal]
        [--integrity-no-wipe] [--token-only] [--token-id=INT]
        [--key-description=STRING] [--sector-size=INT] [--persistent]
        [--label=STRING] [--subsystem=STRING]
        [OPTION...] <action> <action-specific>
cryptsetup: Option --offset is supported only for open of plain and loopaes devices.