table of contents
CRYPTSETUP-CONVERT(8) | Maintenance Commands | CRYPTSETUP-CONVERT(8) |
NAME¶
cryptsetup-convert - converts the device between LUKS1 and LUKS2 format
SYNOPSIS¶
cryptsetup convert --type <format> [<options>] <device>
DESCRIPTION¶
Converts the device between LUKS1 and LUKS2 format (if possible). The conversion will not be performed if there is an additional LUKS2 feature or LUKS1 has unsupported header size.
Conversion (both directions) must be performed on inactive device. There must not be active dm-crypt mapping established for LUKS header requested for conversion.
The --type option is mandatory with the following accepted values: luks1 or luks2.
WARNING: The convert action can destroy the LUKS header in the case of a crash during conversion or if a media error occurs. Always create a header backup before performing this operation!
<options> can be [--header, --type, --disable-locks].
OPTIONS¶
--type <device-type>
--header <device or file storing the LUKS header>
For commands that change the LUKS header (e.g. luksAddKey), specify the device or file with the LUKS header directly as the LUKS device.
--disable-locks
WARNING: Do not use this option unless you run cryptsetup in a restricted environment where locking is impossible to perform (where /run directory cannot be used).
--batch-mode, -q
If the --verify-passphrase option is not specified, this option also switches off the passphrase verification.
--debug or --debug-json
If --debug-json is used, additional LUKS2 JSON data structures are printed.
--version, -V
--usage
--help, -?
Report bugs at cryptsetup mailing list <cryptsetup@lists.linux.dev> or in Issues project section <https://gitlab.com/cryptsetup/cryptsetup/-/issues/new>.
Please attach output of the failed command with --debug option added.
SEE ALSO¶
Cryptsetup FAQ <https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions>
CRYPTSETUP¶
Part of cryptsetup project <https://gitlab.com/cryptsetup/cryptsetup/>.
2023-06-30 | cryptsetup 2.6.0 |