Bowie Bailey wrote:
> On 4/15/2013 1:35 PM, m.roth@xxxxxxxxx wrote:
>> Bowie Bailey wrote:
>>> On 4/12/2013 5:33 PM, Bowie Bailey wrote:
>>>> I had to replace the motherboard on one of my CentOS 4 systems and am
>>>> now getting a kernel panic.
>>>>
>>>> When I try to boot up, I get this:
>>>>
>>>> Volume group "VolGroup00" not found
>>>> ERROR: /bin/lvm exited abnormally! (pid 448)
>>>> mount: error 6 mounting ext3
>>>> mount: error 2 mounting none
>>>> switchroot: mount failed: 22
>>>> umount /initrd/dev failed: 2
>>>> Kernel panic - not syncing: Attempted to kill init!
>>>>
>>>> (I apologize for any typos, I don't have a way to copy/paste from that
>>>> screen)
>>>>
>>>> I can boot up with the boot CD, go into rescue mode and browse the
>>>> files, so I know the drives are ok.
>>>>
>>>> I found some stuff online saying that I should recreate my initrd from
>>>> rescue mode if the motherboard changed. I tried this, but am still
>>>> getting the same results.
>> Sorry, hit <send> and had another thought: I think you said you rebuilt
>> the initrd... *could* you see the drives? *Did* the running system you
>> rebuilt from have all the LVM drivers loaded when you rebuilt it?
>
> I can see the drives from the rescue environment. I don't know how to
> check the LVM drivers.
You need *both* the md drivers and lvm drivers. I haven't built a system
using lvm in years, I'm afraid, but it shouldn't be too hard.
Btw, this may be of some interest:
<http://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/device_mapper.html>
mark
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