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Re: Can't reboot after power failure (RAID problem?)



Hello,

davidg@alcor.concordia.ca a écrit :
> My system went down because of a power failure, and now it won't start.  I
> use RAID 1, and I don't know if that's related to the problem.  The screen
> shows the following.
> 
> Loading, please wait...
> Gave up waiting for rood device.  Common problems:
> - Boot args (cat /proc/cmdline)
>   - Check rootdelay- (did the system wait long enough?)
>   - Check root- (did the system wait for the right device?
> - Missing modules (cat /proc/modules; ls /dev)
> ALERT! /dev/disk/by-uuid/47173345-34e3-4ab3-98b5-f39e80424191 does not exist.
> Dropping to a shell!
> 
> I don't know if that uuid is an MD device, but it seem likely.  Grub is
> installed on each disk, and I previously tested the RAID 1 arrays by
> unplugging each disk one at a time and was able to boot to either.

The kernel and initramfs started, so grub did its job and does not seem
to be the problem.

Are the disks, partitions and RAID devices present in /proc/partitions
and /dev/ ? What does /proc/mdstat contain ? Any related messages in dmesg ?


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