NAME

       cryptsetup-luksHeaderRestore - restore a binary backup of the LUKS header and keyslot area

SYNOPSIS

       cryptsetup luksHeaderRestore --header-backup-file <file> [<options>] <device>

DESCRIPTION

       Restores a binary backup of the LUKS header and keyslot area from the specified file.
       NOTE: Using '-' as filename reads the header backup from a file named '-'.

       <options> can be [--header, --header-backup-file, --disable-locks].

       WARNING: Header and keyslots will be replaced, only the passphrases from the backup will
       work afterward.

       This command requires that the volume key size and data offset of the LUKS header already
       on the device and of the header backup match. Alternatively, if there is no LUKS header on
       the device, the backup will also be written to it.

OPTIONS

       --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.

       --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).

       --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.

       --header-backup-file <file>
           Specify file with header backup file.

       --help, -?
           Show help text and default parameters.

       --usage
           Show short option help.

       --version, -V
           Show the program version.

REPORTING BUGS

       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(8), integritysetup(8) and veritysetup(8)

CRYPTSETUP

       Part of cryptsetup project <https://gitlab.com/cryptsetup/cryptsetup/>.