[CentOS] raid 1

Sat Apr 28 18:48:50 UTC 2007
Les Mikesell <lesmikesell at gmail.com>

CentOS List wrote:
>>>>>> It might be easier to swap the old sdb into the sda position so 
>>>>>> you'll boot from it, but you should also be able to boot the 
>>>>>> install cd with
>>>>> If swapped and booted, and got a kernel panic error.
>>>> What does it complain about?
>>> <snip>
>>> mounting root filesystem cfs: can't find ext3 filesystem on dev md2
>>> mount: error 22 mounting ext
>>> mount: error 22 mounting none switching to new root switchroot: mount 
>>> failed: 22 unmount /initrd/dev failed: 2
>>> Kernel panic - not syncing: attempted to kill init!
>> From the rescue mode boot, can you mount either /dev/md2 or the 
>> underlying /dev/sd?2 from either of the disks.  If not, the raid isn't 
>> your problem, it is the contents of the partition.
> # mount /dev/md2 /mnt/part3
> mount: Mounting /dev/md2 on /mnt/part3 failed: Invalid argument

What about the /dev/sda2 or /dev/sdb2 that was the original disk?  If 
you can't mount the filesystem from there, I think the contents either 
weren't what you thought (the raid wasn't working before the other drive 
failed) or something you have done since has damaged it.

   Les Mikesell
    lesmikesell at gmail.com