Hi Anand. On Wed, Apr 17, 2002 at 01:39:28AM +1000, Anand Kumria wrote: > Hi there, > > Quite some time ago, Heinz assisted me with a partial recovery of > data from one of my LVM volumes. In the meantime I've managed to > reconstruct a lot of it but have discovered there are one or two > items I need to get back from the original. > > I'm using LVM tool 1.1rc1 reports: > caliban:~# vgscan > vgscan -- reading all physical volumes (this may take a while...) > vgscan -- found active volume group "caliban" > vgscan -- only found 11364 of 11520 LEs for LV /dev/caliban/h2 > vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created > vgscan -- WARNING: This program does not do a VGDA backup of your volume group > > If I try and mount the h2 filesystem my kernel opps as the first 150 > PE<->LE mappings don't exist. Has anyone written a tool that copies > either PEs or LEs from disk without mounting the affected partition? Not that I am aware if. A tool to extract accessable LEs of a LV basically needs to: - run "lvdisplay -Dv /dev/caliban/h2" in order to retrieve all physical volumes and extents of the LV - pvdisplay -v on all of the PVs to get the mapping and run dd commands for every extend which name the output files per le Attached script, which *needs* 1.1-rc tools to run, tries this: Tell me, if it is of any use for you. Regards, Heinz -- The LVM Guy -- > > That would allow me to salvage more of the data. I'm at the point where > writing the code myself is an option if only I got some pointers. I'm > unclear on where the mapping from LE<->PE<->disk blocks is stored. Plus > I'm finding it confusing trying to see which version of the on-disk metadata > LVM is using. > > Thanks, > Anand > > -- > `` We are shaped by our thoughts, we become what we think. > When the mind is pure, joy follows like a shadow that never > leaves. '' -- Buddha, The Dhammapada > > _______________________________________________ > 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 *** 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 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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save_les.sh
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