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= cryptsetup-repair(8)
:doctype: manpage
:manmanual: Maintenance Commands
:mansource: cryptsetup {release-version}
:man-linkstyle: pass:[blue R < >]
:COMMON_OPTIONS:
:ACTION_REPAIR:
== Name
cryptsetup-repair - repair the device metadata
== SYNOPSIS
*cryptsetup _repair_ [<options>] <device>*
== DESCRIPTION
Tries to repair the device metadata if possible. Currently supported
only for LUKS device type.
This command is useful to fix some known benign LUKS metadata header
corruptions. Only basic corruptions of unused keyslot are fixable. This
command will only change the LUKS header, not any key-slot data. You may
enforce LUKS version by adding --type option.
It also repairs (upgrades) LUKS2 reencryption metadata by adding
a metadata digest that protects it against malicious changes.
If LUKS2 reencryption was interrupted in the middle of writing
reencryption segment the repair command can be used to perform
reencryption recovery so that reencryption can continue later.
Repairing reencryption requires verification of reencryption
keyslot so passphrase or keyfile is needed.
*<options>* can be [--timeout, --verify-passphrase, --disable-locks,
--type, --header, --key-file, --keyfile-size, --keyfile-offset, --key-slot].
*WARNING:* Always create a binary backup of the original header before
calling this command.
include::man/common_options.adoc[]
include::man/common_footer.adoc[]
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