On Sat, Mar 03, 2007 at 08:59:38PM -0500, Stuart D. Gathman wrote: > Which display commands display on-disk metadata, which display > lvmtab/lvmtab.d, and which display kernel data structures? I'd like to > know if the metadata is trashed on my original two PVs, or just on > the new one I tried to add. Because you're refering to LVM1, you see kernel metadata unless you provide the -D option to the *display commands. > > Given my situation described previously (where vgextend/me screwed up and > kernel data is fine, VG is active, but disk metadata seems to be toast), > should I run vgcfgrestore on the live VG in the hope that things might > boot? I have Centos-3 /etc/lvmconf backups of metadata (I think) for > prior to the attempt to vgextend. Make sure that your /etc/lvmconf backup is alright for your case by running "vgcfgrestore -ll -f ...". If so, vgcfgrestore it after initializing the PVs with pvcreate -f. > > What is the equivalent of pvremove (which is what I needed) in LVM1? > I tried using pvcreate "I'm really really sure", but that seems to have > screwed up. If VG metadata is stored at the beginning of a PV, then > I guess dd might be the answer. There's no pveremove in LVM1, so dd of 512 bytes of zeroes will do. > > Does the last /etc/lvmconf entry respresent the result of the last > command? /etc/lvmconf contains a backup history including the actual VG configuration. > Or is it a backup of things just before the last autobackup > command? > > > -- > Stuart D. Gathman <stuart@bmsi.com> > Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154 > "Confutatis maledictis, flammis acribus addictis" - background song for > a Microsoft sponsored "Where do you want to go from here?" commercial. > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Red Hat GmbH Consulting Development Engineer Am Sonnenhang 11 Storage Development 56242 Marienrachdorf Germany Mauelshagen@RedHat.com PHONE +49 171 7803392 FAX +49 2626 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
