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Re: [linux-lvm] Please help, [Incorrect metadata area header checksum]



Could you do a 'pvscan -vvvv' and post (attach) the output?

You could also copy the first several MB of the PVs that compose "alice". We could then either look directly at them, or you could feel free to be more brave with #2 and #3 below - given that you will have a backup of the front of each disk.

 brassow

On Jan 3, 2009, at 6:43 AM, me wrote:

Hello list,

i've got a (hopefully not) serious problem with my lvm installation.

I did some changes in my XEN-networking and wanted to reboot my server. For this I did shutdown every DOM-U and tried to stop lvm with 'vgchange
-a n'. At this point lvm states 'Incorrect metadata area header
checksum', before this every worked fine. I tried to start lvm
immediately without success, a reboot didn't help either.
I searched the net (almost two days now) for a solution, without
success.

1) It's not a filter-issue (lvm.conf), only loop-devices are scanned.
2) vgcfgrestore doesn't work either (tried only testrun)
3) pvcreate --uuid xxx --restorefile /etc/lvm/archive/xxx_00039.vg xxx
says, the uuid is already in use on /dev/loopX (correct device). I
didn't try the '--force'-option, I'm a coward at last :(

The last change (and reboot) was in november. I added two new drives and growed the raid, rebooted the server and growed one lv. All without any
error. There's only one PV.

If you need any information (configs etc), I'll post everything ;)


--- snip ---

$>pvscan
 Incorrect metadata area header checksum
 Incorrect metadata area header checksum
 WARNING: Volume Group alice is not consistent
 PV /dev/loop53   VG alice   lvm2 [6.37 TB / 408.57 GB free]
 Total: 1 [376.57 GB] / in use: 1 [376.57 GB] / in no VG: 0 [0   ]


Any help is appreciated!

greets
ralf


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