[BlueOnyx:12041] Re: Dracut can't mount LVM volumes

[Gerald Waugh]

On 01/17/2013 11:54 PM, Chuck Tetlow wrote:
> Hi Blueonyx experts,
>
> Can anyone help me with a LVM problem?  One of the servers I manage 
> for a company was doing some weird things this afternoon.  While I 
> don't like to reboot our servers for problems that are not 
> system-related, I'd run out of ideas.  So I commanded a reboot.  BIG 
> MISTAKE!  Now it won't come up.
>
> The boot fails with: kernel panic - not syncing:  Attempted to kill init
>
> Working on it a bit - I've got the output coming to the screen.  And I 
> get:
>
> dracut: Scanning devices sda2 for LVM logical volumes VolGroup00/root 
> VolGroup00/swap
> dracut: Volume group VolGroup00 is exported
> dracut: Volume group VolGroup00 is exported
> dracut Warning: nNo root device "block:/dev/mapper/VolGroup00-root" found
> dracut Warning: LVM VolGroup00/root not found
> dracut Warning: LVM VolGroup00/swap not found
> dracut:
>
> So apparently - dracut isn't able to find or mount the LVM 
> partitions.  And I'm stuck.  Nothing I've found on the net is 
> helping.  The suggestions I've found all require you to mount the LVM 
> partitions under a rescue boot or a Knoppix boot - to find/fix the 
> problem.  But its not working.
>
> Has anyone got some experience with LVM and can provide suggestions?  
> I really need to get this server back up soon.
>

If RAID 1 system try booting off of the mirrored drive.

-- 
Gerald
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