# cryptsetup-config

## NAME



           cryptsetup-config - set permanent configuration options (store to
           LUKS header)
    


## SYNOPSIS



           **cryptsetup** _config_ **< options> <device>**
    


## DESCRIPTION



           Set permanent configuration options (store to LUKS header). The
           _config_ command is supported only for LUKS2.
    
           The permanent options can be --priority to set priority (normal,
           prefer, ignore) for keyslot (specified by --key-slot) or --label
           and --subsystem.
    
           **< options> **can be [--priority, --label, --subsystem, --key-slot,
           --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.
    
           **--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 is 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 the
               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.
    
           **--key-slot** , **-S** _< 0-N>_
               For LUKS operations that add key material, this option allows
               you to specify which keyslot is selected for the new key.
    
               The maximum number of keyslots depends on the LUKS version.
               LUKS1 can have up to 8 keyslots. LUKS2 can have up to 32
               keyslots based on keyslot area size and key size, but a valid
               keyslot ID can always be between 0 and 31 for LUKS2.
    
           **--label** _< label>_,  **--subsystem** _< subsystem>_
               Set label and subsystem description for LUKS2 device. These
               are similar to filesystem labels. The label and subsystem are
               optional fields and can be later used in udev scripts to
               trigger user actions once the device marked by these labels is
               detected.
    
           **--priority** _< normal|prefer|ignore>_
               Set a priority for LUKS2 keyslot. The _prefer_ priority marked
               slots are tried before the _normal_ priority. The _ignored_
               priority means that the slot is never used, if not explicitly
               requested by --key-slot option.
    
           **--usage**
               Show short option help.
    
           **--version** , **-V**
               Show the program version.
    


## CRYPTSETUP



           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 dm-crypt@saout.de. This
           page was obtained from the project's upstream Git repository
           ⟨https://gitlab.com/cryptsetup/cryptsetup.git⟩ on 2025-08-11. (At
           that time, the date of the most recent commit that was found in
           the repository was 2025-08-01.) 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
           man-pages@man7.org
    
    cryptsetup 2.8.1-git            2025-08-09           _CRYPTSETUP-CONFIG_(8)
    


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