cryptsetup-repair - Linux
Overview
cryptsetup-repair is a command in Linux that allows you to repair damaged or corrupt LUKS encryption headers. It can be used to recover data from encrypted partitions in case of accidental damage or hardware failure.
Syntax
cryptsetup-repair [options] <device> [<device> ...]
Options/Flags
- –progress: Display progress of repair operation.
- –verify: Verify the repaired header after repair.
- –expert: Force advanced repair options. Use with caution.
- –debug: Enable debug logging.
- –help: Display help information.
Examples
Repair a damaged LUKS header
cryptsetup-repair /dev/sda2
Repair multiple LUKS headers
cryptsetup-repair /dev/sda2 /dev/sdb1
Verify repaired header
cryptsetup-repair --verify /dev/sda2
Advanced repair using expert mode (Caution: Use with care)
cryptsetup-repair --expert /dev/sda2
Common Issues
Unable to open device
Ensure the device you’re trying to repair is unlocked and accessible.
Repair failed with unknown error
Try using the --expert option for advanced repair techniques.
Header seems OK, but data is still inaccessible
Consider using data recovery tools or professional data recovery services.
Integration
cryptsetup-repair can be used in conjunction with other commands such as:
- cryptsetup: To manage and manipulate LUKS headers.
- fsck: To check and repair the filesystem on the encrypted partition.
- dd: To copy data from the repaired header to a new device.
Related Commands
cryptsetupluksformatluksopenfsck