cryptsetup-luksHeaderRestore(8) — Linux manual page



NAME         top

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

SYNOPSIS         top

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

DESCRIPTION         top

       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,

       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         top

       --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 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.

           Show short option help.

       --version, -V
           Show the program version.

REPORTING BUGS         top

       Report bugs at cryptsetup mailing list
       <> or in Issues project section

       Please attach output of the failed command with --debug option

SEE ALSO         top

       Cryptsetup FAQ

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

CRYPTSETUP         top

       Part of cryptsetup project
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cryptsetup 2.8.0-git           2023-09-13       CRYPTSETU...ERRESTORE(8)

Pages that refer to this page: cryptsetup(8)