NAME | SYNOPSIS | DESCRIPTION | OPTIONS | REPORTING BUGS | SEE ALSO | CRYPTSETUP
CRYPTSETUP-CONVERT(8) Maintenance Commands CRYPTSETUP-CONVERT(8)
cryptsetup-convert - converts the device between LUKS1 and LUKS2 format
cryptsetup convert --type <format> [<options>] <device>
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].
--type <device-type> Specifies required device type, for more info read BASIC ACTIONS section in cryptsetup(8). --header <device or file storing the LUKS header> Use a detached (separated) metadata device or file where the LUKS header is stored. This option allows one to store ciphertext and LUKS header on different devices. 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 Disable lock protection for metadata on disk. This option is valid only for LUKS2 and ignored for other formats. 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 Suppresses all confirmation questions. Use with care! If the --verify-passphrase option is not specified, this option also switches off the passphrase verification. --debug or --debug-json Run in debug mode with full diagnostic logs. Debug output lines are always prefixed by #. If --debug-json is used, additional LUKS2 JSON data structures are printed. --version, -V Show the program version. --usage Show short option help. --help, -? Show help text and default parameters.
Report bugs at cryptsetup mailing list <firstname.lastname@example.org> or in Issues project section <https://gitlab.com/cryptsetup/cryptsetup/-/issues/new>. Please attach output of the failed command with --debug option added.
Cryptsetup FAQ <https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions> cryptsetup(8), integritysetup(8) and veritysetup(8)
Part of cryptsetup project <https://gitlab.com/cryptsetup/cryptsetup/>. This page is part of the Cryptsetup ((open-source disk encryption)) project. Information about the project can be found at ⟨https://gitlab.com/cryptsetup/cryptsetup⟩. If you have a bug report for this manual page, send it to email@example.com. This page was obtained from the project's upstream Git repository ⟨https://gitlab.com/cryptsetup/cryptsetup.git⟩ on 2022-12-17. (At that time, the date of the most recent commit that was found in the repository was 2022-12-14.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to firstname.lastname@example.org cryptsetup 2.6.1-git 2022-12-14 CRYPTSETUP-CONVERT(8)
Pages that refer to this page: cryptsetup(8)