Upgrade Ubuntu 8.10 -> 10.04 broke RAID config
I have just upgraded an Ubuntu desktop 8.10 to 10.04 The drive configuration is a single drive with the O/S, and two pairs of disks on software RAID1. When I reboot the server, I get error messages on startup telling me that /dev/md0 and /dev/md1 are inaccessible; I have to skip mounting them in order to proceed. However, if I use Syetem -> Administration -> Disk Utility once I have logged in, I can see the drives and if I tear down the two RAID devices and bring them back up again they both come back healthy. The problem only seems to be bringing them online on startup. Any suggestions? -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG
On 20/08/10 15:55, Mark Rogers wrote:
, I get error messages on startup telling me that /dev/md0 and /dev/md1 are inaccessible; I have to skip mounting them in order to proceed. However, if I use Syetem -> Administration -> Disk Utility once I have logged in, I can see the drives and if I tear down the two RAID devices and bring them back up again they both come back healthy.
The problem only seems to be bringing them online on startup. Any suggestions?
I had the same. Worked around it by booting with kernel 2.6.32-24-generic instead of 2.6.32-24-generic-pae. -- Martijn
On 20/08/10 16:35, Martijn Koster wrote:
I had the same. Worked around it by booting with kernel 2.6.32-24-generic instead of 2.6.32-24-generic-pae.
Thanks for the suggestion but it didn't work for me; I didn't have a pae kernel anyway. I did solve it, though: apt-get remove mdadm mv /etc/mdadm/mdadm.conf /etc/mdadm/mdadm.conf.old apt-get install mdadm It looks like the key problem was mdadm.conf, although I didn't investigate any further. -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG
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Martijn Koster