mdadm RAID problem -- won't boot
rbragg at gmnet.net
Mon Aug 20 17:36:40 UTC 2012
I am having a problem booting my system. My boot disk is not a raid array,
however, I do have 4 other disks making a raid 10 array that I mount at /mnt/md0.
My problem is that when I boot my system, I get to a point where it says it
it can't start the degraded array, and asks me if I want to start the degraded
array. If I say yes or no, it always drops me to a shell. At the shell, I do a
"cat /proc/mdadm" and I can see 2 arrays! One is /dev/md0 started, degraded with
only 3 of my disks (sda1, sdc1, sdd1.) The other array is /dev/md127 with the
other disk all by itself (sdb1) and not started. Again, I am booting from a
different disk entirely (sde1.) I tried to remove the md127 array altogether, and
re-add sdb1 into the md0 array, and it syncs up fine. After syncing and seeing
that the md0 array is fine, I reboot. After rebooting, I get the same problem over
and over again.
My question is:
How can I fix this so that I only have one array at /dev/md0 with all 4 disks
synced? Also, how can I bypass this and boot my system without any raid at all so
I can fix that later? I am using ubuntu server 10.04 LTS.
More information about the ubuntu-users