On Tue, Jan 29, 2002 at 01:57:38PM -0800, Marc MERLIN wrote: > [Adding a Cc to lvm-devel, since I apparently hit a bug in the code. Please > remove or edit as appropriate] > > On Mon, Jan 28, 2002 at 10:42:58AM +0100, Heinz J . Mauelshagen wrote: > > > It fails and says: > > > parameter error setting up snapshot copy on write exception > > > > > > So yes, I have snapshots in there, but I can't delete the snapshots if the > > > volume isn't active, and I can't activate the volume because of a snapshot. > > > > > > To make things worse, /dev/System contains /usr and /var. > > > > > > The snapshots were created with 1.0.1rc4 on 2.4.14 and I now run 2.4.17 with > > > 1.0.1rc4-ish > > > > I am afraid you need to figure out the last metadata backup in /etc/lvmconf/ > > which *doesn't* contain the flaky snapshot(s). > > > > You didn't mention the name of you VG so let's say it was 'A'. > > > > You can do that with "vgcfgrestore -f /etc/lvmconf/A.conf.1.old -n A -ll". > > Replace the '1' in the metadata backup filename above with 2, 3 and so on > > (you should have a default of up to 9). > > After you found one (say #3), remember all you PVs belonging to that VG and run > > > > pvcreate -yff /dev/AllYourPVsBelongingToA > > for pv in /dev/AllYourPVsBelongingToA > > do > > vgcfgrestore -f /etc/lvmconf/A.conf.3.old -n A $pv > > done > > vgscan > > vgchange -ay A > > Unfortunately, that doesn't work because I had a cron job that was creating > daily snapshots (in an attempt to emulate ONTAP's snapshot's feature), so my > 10 backups contain snapshot LVs Well, in this case you might still have a consistent backup with snapshots which you can use like mentioned above. > > If the backups were text, I could edit them and remove the snapshot info in > there, but with a binary backup, I don't know how to do that. > > If I know how big my /var and /usr partitions were and in which order I > created them (vgcfgrestore -ll shows this anyway), can I recreate the VG on > top of itself without losing the data in the the LVs? > Is there another way to recover from this? > > More importantly, is this a known bug? Can I give info to help fix it? We get ocassional problem reports like yours. Any syslog or console output which is related to a snapshot flaw would help. > > Marc > -- > Microsoft is to operating systems & security .... > .... what McDonalds is to gourmet cooking > > Home page: http://marc.merlins.org/ | Finger marc_f@merlins.org for PGP key > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
