Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

After reinstallation of my OS, I decide to manually assemble a RAID6 array.

# mdadm --assemble --auto=yes --scan=auto /dev/md0

I don't exactly remember a message but programmdadm return a resizing raid array.

$ more /proc/mdstat

Personalities : [raid6] [raid5] [raid4] md0 : active raid6 sdc1[0] sdf1[7](S) sdh1[6] sdd1[5] sdg1[4] sda1[3] sdi1[2] sdb1[1] 4883799680 blocks level 6, 64k chunk, algorithm 2 [7/7] [UUUUUUU]

After I try to run an encryption and:

# cryptsetup luksOpen /dev/md0 md0_crypt

Device /dev/md0 is not a valid LUKS device

I searched but I can't find in Internet how to solve this problem.

This is really bad, because they are a life's fotos/videos... :(

share|improve this question
    
You updated your backups before playing with mdadm, did you? –  S19N Jan 7 '12 at 16:01
    
What does "hexdump -C /dev/md0" show you? Show the first 16 lines. –  ott-- Jan 7 '12 at 22:43

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.