I can also confirm that this bug is stil present on precise
I first did a release-upgrade when the crash started appearing. I
reinstalled the box and the issue still appears. I will try these tips
here regarding mdadm.conf.
On a related note. I find it interesting that my only RAID-device
becomes /dev/md127 instead of /dev/md0 as it has always been.
root@dom0:/home/thu# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
root@dom0:/home/thu# cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
#DEVICE partitions containers
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# instruct the monitoring daemon where to send mail alerts
MAILADDR root
# definitions of existing MD arrays
# This file was auto-generated on Sat, 28 Jul 2012 01:05:22 +0200
# by mkconf $Id$
root@dom0:/home/thu# mdadm --detail /dev/md127
/dev/md127:
Version : 0.90
Creation Time : Sat Jan 24 14:16:52 2009
Raid Level : raid6
Array Size : 13186245888 (12575.38 GiB 13502.72 GB)
Used Dev Size : 1465138432 (1397.26 GiB 1500.30 GB)
Raid Devices : 11
Total Devices : 12
Preferred Minor : 127
Persistence : Superblock is persistent
Update Time : Sat Jul 28 13:31:06 2012
State : clean, degraded, recovering
Active Devices : 10
Working Devices : 11
Failed Devices : 1
Spare Devices : 1
Layout : left-symmetric
Chunk Size : 128K
Rebuild Status : 85% complete
UUID : 1f095377:1c62a5f4:352a6ad4:582f9bd3
Events : 0.608892
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https://bugs.launchpad.net/bugs/136252
Title:
[->UUIDudev] mdadm.conf w/o ARRAY lines but udev/mdadm not assembling
arrays. (boot & hotplug fails)
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