From: "Bryn M. Reeves" <breeves@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Broken hard disk
Date: Thu, 12 Oct 2006 23:53:09 +0100 [thread overview]
Message-ID: <452EC755.1070603@redhat.com> (raw)
In-Reply-To: <200610122350.46609.martin.wilmes@java-cup.de>
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Martin Wilmes wrote:
> Now I installed the old, hopefully still working disk in a different computer
> and booted with Knoppix 5.0.1 to get some of my data back but vgscan -v comes
> back with nothing at all.
It's a bit strange that it outputs nothing at all. I'd expect to see
something like:
$ sudo vgscan -v
Wiping cache of LVM-capable devices
Wiping internal VG cache
Reading all physical volumes. This may take a while...
Finding all volume groups
Finding volume group "scratch0"
Couldn't find device with uuid 'ZpQI30-qpx3-Cm54-YcSR-5Ho4-rlUx-uCxGBi'.
Couldn't find all physical volumes for volume group scratch0.
Couldn't find device with uuid 'ZpQI30-qpx3-Cm54-YcSR-5Ho4-rlUx-uCxGBi'.
Couldn't find all physical volumes for volume group scratch0.
Volume group "scratch0" not found
If there's a PV missing from the volume group.
You can add move 'v's to increase the verbosity of vgscan to see what
it's scanning - do you have any device filters configured in /etc/lvm.conf?
It'd also be good to see what pvscan shows, for e.g.:
$ sudo pvscan
Couldn't find device with uuid 'ZpQI30-qpx3-Cm54-YcSR-5Ho4-rlUx-uCxGBi'.
PV /dev/hda2 VG d800_vg0 lvm2 [34.18 GB / 760.00 MB free]
PV unknown device VG scratch0 lvm2 [60.00 MB / 0 free]
PV /dev/loop1 VG scratch0 lvm2 [60.00 MB / 52.00 MB free]
Total: 3 [34.30 GB] / in use: 3 [34.30 GB] / in no VG: 0 [0 ]
Once you find the volume group, activate it without the missing PV using
the --patial option, e.g:
vgchange -ay --partial <vgname>
Cheers,
Bryn.
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next prev parent reply other threads:[~2006-10-12 22:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-12 21:50 [linux-lvm] Broken hard disk Martin Wilmes
2006-10-12 22:53 ` Bryn M. Reeves [this message]
2006-10-13 3:53 ` Martin Wilmes
2006-10-13 16:33 ` Bryn M. Reeves
2006-10-13 18:46 ` Martin Wilmes
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