man 8 CRYPTSETUP-CLOSE

CRYPTSETUP-CLOSE(8)          Maintenance Commands          CRYPTSETUP-CLOSE(8)

NAME
       cryptsetup-close - removes the existing mapping <name> (and the
       associated key)

SYNOPSIS
       cryptsetup close [<options>] <name> 

DESCRIPTION
       Removes the existing mapping <name> and wipes the key from kernel
       memory.

       For backward compatibility, there are close command aliases: remove,
       plainClose, luksClose, loopaesClose, tcryptClose, bitlkClose (all
       behave exactly the same, device type is determined automatically from
       the active device).

       <options> can be [--deferred, --cancel-deferred, --header,
       --disable-locks].

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.

       --cancel-deferred
           Removes a previously configured deferred device removal in close
           command.

       --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.

       --deferred
           Defers device removal in close command until the last user closes
           it.

       --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.

       --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/>.

cryptsetup 2.7.2                  2025-06-13               CRYPTSETUP-CLOSE(8)