I can confirm this problem too after an upgrade from Feisty to Gutsy,
but I don't think that the problem is a missing module (see below). Here
is my configuration:
Single hard disk (/dev/sda) configured with two Linux RAID Auto partitions.
$ sudo fdisk -l:
=====================
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000e03ff
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 fd Linux RAID autodetect
/dev/sda2 14 60801 488279610 fd Linux RAID autodetect
=====================
$ cat /proc/mdstat:
=====================
Personalities : [raid1]
md1 : active raid1 sda2[0]
488279488 blocks [2/1] [U_]
md0 : active raid1 sda1[0]
104320 blocks [2/1] [U_]
unused devices: <none>
=====================
md0 and md1 are degraded arrays. They were purposefully created with one
`missing' drive in case I want to simply make it redundant, or replace
the disk easily.
LVM Configuration:
$ sudo pvs:
=====================
PV VG Fmt Attr PSize PFree
/dev/md1 rootvg lvm2 a- 465.66G 0
=====================
After my upgrade from Feisty to Gutsy, the system wouldn't boot. I tried
recovery mode, but that too wouldn't boot. I then resorted to the Feisty kernel
which thankfully booted (which is what I am still using).
I did manage to do a little debugging in the initramfs busybox shell. I
dont think that there are any modules missing from the ramdisk. The
md_mod and raid1 modules were loaded (which from a running system seem
to be all that are needed). I was unable to use mdadm to activate the md
device. I tried the following command:
mdadm --assemble --scan
This command was not able to detect any raid partitions.
I suspect that the problem could be with udev???
Please let me know if there is anything that you would like me to
test....
--
gutsy md module not present in ramdisk
https://bugs.launchpad.net/bugs/133765
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