Comment 51 for bug 27037

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Jeffrey Baker (jwbaker) wrote :

@Jeremy Foshee I ran my apport-collect on a Karmic server above. I had the same workaround as one of the above commenters. I had a useless, incomplete md_d0 listed in mdstat which had claimed three of the four devices in my RAID. I stopped md_d0 and assembled the RAID again with success.

$ cat /proc/mdstat
Personalities : [raid0]
md_d0 : inactive sde[3](S) sdc[1](S) sdd[2](S)
      1321098048 blocks

unused devices: <none>
# mdadm --assemble /dev/md0 /dev/sdb /dev/sdc /dev/sdd /dev/sde
mdadm: /dev/md0 has been started with 4 drives.
# cat /proc/mdstat
Personalities : [raid0]
md0 : active raid0 sdb[0] sde[3] sdd[2] sdc[1]
      1761460224 blocks 1024k chunks

unused devices: <none>