[linux-lvm] LVM problem - how to recover?
unixtipz at yahoo.com
Fri Dec 8 17:23:39 UTC 2006
1. What does/did vgcfgrestore tell you when you tried
to use it? You said it did not work....
2. Does debugreiserfs /dev/mapper/VGgroup-LVlist say
that there is a filesystem there? (assuming you have
not created a new filesystem there && also assuming
you can perform "vgchange -a y VGgroup" )
--- Richard Kampmann <Richard.Kampmann at freenet.de>
> Hi everybody,
> I'm a bit disappointed, because there was really no
> feedback to my mail.
> The situation is a real problem for me - is there
> anything missing? Or is
> there no way to recover (can't believe that ...)?
> Wrong way or place to ask? Then please tell me where
> to go ...
> I tried to find a solution myself (also with help of
> Google ...), but it did
> not help me.
> Richard Kampmann
> Am Dienstag, 28. November 2006 21:15 schrieb Richard
> > Hi everybody ...
> > I recently had a lvm crash from which I now have
> to recover. So now I need
> > your help ...
> > The system is a SUSE 10.1 system with actual
> > # uname -rio
> > 22.214.171.124-0.25-default i386 GNU/Linux
> > # lvm version
> > LVM version: 2.02.02 (2006-02-07)
> > Library version: 1.02.03 (2006-02-08)
> > Driver version: 4.5.0
> > #
> > There was the unenlightened crash and before there
> was a volume goup
> > spanning two physical partitions (sda2, sdb2),
> each on one physical disk
> > (sda, sdb). The system froze (maybe in coincidence
> with some
> > snapshot-handling) and I had to press the reset
> button. When rebooting lvm
> > told me he could not open the volume group because
> one pv was missing. The
> > partition looked OK when checking the partition
> table. I tried several
> > things - and to do a vgcfgrestore but it did not
> > The volume group (system_vg) contained the root
> partition, so I installed a
> > new system on a third disc and tried to recover
> the old volume group.
> > Unfortunately when doing the pvcreate for the two
> physical volumes I did
> > NOT choose the "--zero n" switch.
> > Fact is: I now have the volume group containing
> two physical discs and two
> > physical volumes with the correct PV UUIDs. But
> the first sectors are
> > zeroed, aren't they?
> > Any way to recover the LVs of the old volume
> group? A vgcfgrestore (YES,
> > there was a vgcfgbackup before!) does not work ...
> bad luck.
> > Ah - and all logical volumes contain Reiser
> Filesystems V 3.6 - they MUST
> > still be there ...
> > So - what could be my next steps?
> > Bye
> > Richard Kampmann
> > _______________________________________________
> linux-lvm mailing list
> linux-lvm at redhat.com
> read the LVM HOW-TO at
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