[mythtv-users] Rebuild raid array ?
keraba at gmail.com
Sun Nov 21 01:08:14 UTC 2010
Seasons greetings, all,
Long time, no see. I've been enjoying 0.22 so much that I fell off the
Now I'm trying to upgrade to 0.24 and ran into some (albeit non-mythtv)
But I suspect others on the list have some experience here, so crossing my
I figured it was also time to upgrade the server to Lucid. This appeared to
When I rebooted, it refused to mount my RAID array. For reference, here's
what I have:
sda1: boot partition
I booted from a Lucid CD, and ran mdadm --assemble /dev/md0, and it said:
mdadm: failed to add /dev/sda2 to /dev/md0: Device or resource busy
mdadm: /dev/md0 has been started with 3 drives (out of 4).
Looking at dmesg, it says:
[ 5.975166] EXT3-fs (sda1): mounted filesystem with ordered data mode
[ 6.044417] EXT3-fs error (device sda2): ext3_check_descriptors: Block
bitmap for group 1920 not in group (block 32832)!
[ 6.044423] EXT3-fs (sda2): error: group descriptors corrupted
[ 6.330151] EXT4-fs (sdd2): Couldn't mount because of unsupported
optional features (4000000)
Personalities : [raid6] [raid5] [raid4]
md0 : active raid5 sda2 sdd2 sdc2 sdb2
729599808 blocks level 5, 64k chunk, algorithm 2 [4/3] [_UUU]
[===================>.] recovery = 99.0% (240874624/243199936)
unused devices: <none>
At this point, I *could* just copy everything off and start from ground
but I think you all know what a pain in the back-end that would be, and
I have this tiny suspicion that there's something I could do to make
it happy again.
Would some kind soul suggest some things I could try to bring back my myth
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