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If you get really desparate and don't mind sorting throught the wreckage.
testdisk might be your friend.

Download here: http://www.cgsecurity.org/wiki/TestDisk_Download

Howto use here: http://itknowledgeexchange.techtarget.com/linux-lotus-domino/recovering-files-from-an-lvm-or-ext3-partition-with-testdisk/

----- Original Message -----
From: "Guy Roussin" <guy.roussin@xxxxxxxxxxxxxxxx>
To: xen-users@xxxxxxxxxxxxxxxxxxx
Sent: Tuesday, 9 March, 2010 2:02:12 AM
Subject: Re: [Xen-users] Error with clvm

Hi again,

Do you think it's possible to restore some data from my VG.
I can't access it anymore. When i boot the host, it's stuck on
the error which i have describe.

If i move the volume on a another dom0, i can't access with lvm
because this is a clustered VG.
Is it possible to downgrade to a non cluster LVM, (remove cluster
metadata) without loosing data ?

Thank you.

Guy

> Hi,
>
> I get this error when i try to start clvm (debian lenny) :
> This is a clvm version with openais
>
> # /etc/init.d/clvm restart
> Deactivating VG ::.
> Stopping Cluster LVM Daemon: clvm.
> Starting Cluster LVM Daemon: clvmCLVMD[86475770]: Mar 8 11:25:27
> CLVMD started
> CLVMD[86475770]: Mar 8 11:25:27 Our local node id is -1062730132
> CLVMD[86475770]: Mar 8 11:25:27 Add_internal_client, fd = 7
> CLVMD[86475770]: Mar 8 11:25:27 Connected to OpenAIS
> CLVMD[86475770]: Mar 8 11:25:27 Cluster ready, doing some more
> initialisation
> CLVMD[86475770]: Mar 8 11:25:27 starting LVM thread
> CLVMD[86475770]: Mar 8 11:25:27 clvmd ready for work
> CLVMD[40800950]: Mar 8 11:25:27 LVM thread function started
> CLVMD[86475770]: Mar 8 11:25:27 Using timeout of 60 seconds
> CLVMD[86475770]: Mar 8 11:25:27 confchg callback. 1 joined, 0 left, 1
> members
> File descriptor 4 left open
> File descriptor 5 left open
> File descriptor 6 left open
> WARNING: Locking disabled. Be careful! This could corrupt your metadata.
> CLVMD[40800950]: Mar 8 11:25:43 LVM thread waiting for work
>
> I need to CTRL-C
>
> How can i fix this error. Thank you.
>

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