<div>Seasons greetings, all,</div><div><br></div><div>Long time, no see. I've been enjoying 0.22 so much that I fell off the mailing list.</div><div>Now I'm trying to upgrade to 0.24 and ran into some (albeit non-mythtv) trouble.</div>
<div>But I suspect others on the list have some experience here, so crossing my fingers.</div><div><br></div><div>I figured it was also time to upgrade the server to Lucid. This appeared to go ok.</div><div>When I rebooted, it refused to mount my RAID array. For reference, here's what I have:</div>
<div><br></div><div>sda1: boot partition</div><div>sda2: RAID</div><div>sdb1: swap</div><div>sdb2: RAID</div><div>sdc1: swap</div><div>sdc2: RAID</div><div>sdd1: swap</div><div>sdd2: RAID</div><div><br></div><div>I booted from a Lucid CD, and ran mdadm --assemble /dev/md0, and it said:</div>
<div><br></div><div><div>mdadm: failed to add /dev/sda2 to /dev/md0: Device or resource busy</div><div>mdadm: /dev/md0 has been started with 3 drives (out of 4).</div></div><div><br></div><div>Looking at dmesg, it says:</div>
<div><br></div><div><div>[ 5.975166] EXT3-fs (sda1): mounted filesystem with ordered data mode</div><div>[ 6.044417] EXT3-fs error (device sda2): ext3_check_descriptors: Block bitmap for group 1920 not in group (block 32832)!</div>
<div>[ 6.044423] EXT3-fs (sda2): error: group descriptors corrupted</div><div>[ 6.330151] EXT4-fs (sdd2): Couldn't mount because of unsupported optional features (4000000)</div></div><div><br></div><div>/proc/mdstat says:</div>
<div><br></div><div><div>Personalities : [raid6] [raid5] [raid4] </div><div>md0 : active raid5 sda2[4] sdd2[3] sdc2[2] sdb2[1]</div><div> 729599808 blocks level 5, 64k chunk, algorithm 2 [4/3] [_UUU]</div><div> [===================>.] recovery = 99.0% (240874624/243199936) finish=0.6min speed=56580K/sec</div>
<div> </div><div>unused devices: <none></div></div><div><br></div><div>At this point, I *could* just copy everything off and start from ground zero,</div><div>but I think you all know what a pain in the back-end that would be, and</div>
<div>I have this tiny suspicion that there's something I could do to make</div><div>it happy again.</div><div><br></div><div>Would some kind soul suggest some things I could try to bring back my myth server ?</div><div>
<br></div><div>Thanks!</div><div><br></div>