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Full Discussion: LVM restore / recovery
Special Forums Hardware Filesystems, Disks and Memory LVM restore / recovery Post 302245158 by otheus on Thursday 9th of October 2008 01:21:44 PM
Old 10-09-2008
lvm RAID-1 recovery

Quote:
Originally Posted by Zburatorul
No, I haven't done anything to it.

But how exactly do I mount lvm volumes without them being in a group? Does mounting do anything to the underlying devices as you ask?
No, I don't think so, unless you also striped across partitions. But I'm far from certain. The safe thing to do is go to the physical partiitions and try to fsck them with -n:

fsck -n /dev/hd3a

or whatever. Keep trying different superblocks until you get a hit. Also try LinuxQuestions.org, but make sure you direct your question to an advanced forum.
 

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VGREDUCE(8)						      System Manager's Manual						       VGREDUCE(8)

NAME
vgreduce - reduce a volume group SYNOPSIS
vgreduce [-a|--all] [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--removemissing] [-t|--test] [-v|--verbose] VolumeGroupName [Physi- calVolumePath...] DESCRIPTION
vgreduce allows you to remove one or more unused physical volumes from a volume group. OPTIONS
See lvm for common options. -a, --all Removes all empty physical volumes if none are given on command line. --removemissing Removes all missing physical volumes from the volume group, if there are no logical volumes allocated on those. This resumes normal operation of the volume group (new logical volumes may again be created, changed and so on). If this is not possible (there are logical volumes referencing the missing physical volumes) and you cannot or do not want to remove them manually, you can run this option with --force to have vgreduce remove any partial LVs. Any logical volumes and dependent snapshots that were partly on the missing disks get removed completely. This includes those parts that lie on disks that are still present. If your logical volumes spanned several disks including the ones that are lost, you might want to try to salvage data first by acti- vating your logical volumes with --partial as described in lvm (8). SEE ALSO
lvm(8), vgextend(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGREDUCE(8)
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