Fwd: [help] how to deal with Incorrect metadata area header checksum in LVM

[Robin Laing]

max wrote:
> Zhen Zhou wrote:
>> On Wed, Jun 11, 2008 at 8:45 PM, David Timms <dtimms at iinet.net.au> wrote:
>>> Zhen Zhou wrote:
>>>> So what is the right path to recover these lvm?
>>>>
>>>> Any tips will be welcome! Thanks in advanced,
>>>>
>>>> BTW: the attached is lvm metadata file. More detail information
>>>> needed, pls tell me.
>>> You might find experts in LVM hanging out on:
>>> linux-lvm at redhat.com [subscription required].
>>>
>>> Good luck.
>> FTA, thanks for your tips.
>> and I really wonder whether these errors "Incorrect metadata area
>> header checksum,
>> Volume group VolGroup00 metadata is inconsistent" is impossible to 
>> recover.
>>
>> Or what I need to deal, is to follow:
>> http://thread.gmane.org/gmane.linux.redhat.fedora.general/196481
>> to recover all lvm's data?
>>
>> Any tips will be welcome. TIA
>>
>> Zhou Zhen
>>
> I asked in a related thread on the developer's list and I'll ask here. 
> Someone please let me know if my question doesn't make any sense. Is it 
> harder to recover files from an LVM than with the older partioning scheme?
> 

FWIW, I did recover data from an LVM that was removed (on purpose) in 
part of an upgrade.  I couldn't mount the drive as the LVM recovery 
procedures listed and I thought I was toast.  If I left the drive in the 
computer, the computer would try to add the drive back into the LVM no 
matter what I tried.

To complicate things even further, the drive was part of a RAID 1 array. 
  I put the drive into a carrier.  As the drive was SATA, I ended up 
getting a Thermaltake carrier that supports SATA and IDE (end product 
plug). :)

It was many months ago but I used normal recovery tools to pull the data 
off of the drive.  I would have to look at my notes which are at home. 
If I remember I will see if I can find my notes.

Basically, it is possible but I don't know if it is harder as this was 
my first time.

-- 
Robin Laing