On 10/6/2010 2:36 PM, Aleksey Tsalolikhin wrote:
Thank you very much for your replies and suggestions!
Turns out I have a broken RAID. I checked the failed out drive by mounting read-only the /boot partition, and it is configured to boot the older kernel version (the one the system actually boots).
Like Phil said, the OS is seeing one thing, and GRUB another.
Questions:
- How do I fix the array? (How do I put the failed out
drive back in? (I hope it is a small failure that the software RAID can recover from, like a few bad blocks or something. Otherwise I am willing to replace the drive.)
# mdadm /dev/md0 --add /dev/sda1 mdadm: Cannot open /dev/sda1: Device or resource busy #Maybe it's busy because the system really booted off it?
Do you still have it mounted as you mentioned above? If so, unmount it. If it shows as 'failed' in /proc/mdstat you would have to use mdadm to remove it before adding it back.