Hi List,
as a result of executing a command from the history, after a reboot, when the disk letters were changed, I have accidentally overwritten the LUKS header with the raid superblock one :(
Now I can not open the cryptodisk with the "luksOpen" as it states the "No key available with this passphrase."
However, when I run "luksDump" the header information is available
# cryptsetup luksDump /dev/sdd1
LUKS header information for /dev/sdd1
Version: 1
Cipher name: aes
Cipher mode: xts-plain64
Hash spec: sha256
Payload offset: 4096
MK bits: 256
MK digest: a6 a6 de 04 5a 19 9f 97 54 a9 79 bf f8 c1 37 89 69 44 34 76
MK salt: 7a 0b 8e cc 68 06 35 ec 09 fc 5e f9 90 e3 c9 ef
8b 11 96 10 4c 25 ab 89 a1 48 df fe 6a 88 20 96
MK iterations: 232809
UUID: 0f91c412-6f6a-405d-8040-5cc17ad17b47
Key Slot 0: ENABLED
Iterations: 3724958
Salt: c4 52 ac 04 59 8a d1 4f 7a 3c 5d e8 d3 50 1a c4
11 20 0b 66 66 81 78 09 9f 7a f4 c1 dc 80 d4 40
Key material offset: 8
AF stripes: 4000
Key Slot 1: DISABLED
Key Slot 2: DISABLED
Key Slot 3: DISABLED
Key Slot 4: DISABLED
Key Slot 5: DISABLED
Key Slot 6: DISABLED
Key Slot 7: DISABLED
The RAID superblock that was written by mdadm is default, version 1.2 that is located 4K from the beginning of the device.
Providing that I have no backup of the original header and I know wht was written, is there a way to restore the header and get the data?
Konstantin
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