How to mount an LVM volume? (was lvm2 problem)
Antonio Olivares
olivares14031 at yahoo.com
Mon Sep 22 23:54:58 UTC 2008
--- On Mon, 9/22/08, Eric <spamsink at scoot.netis.com> wrote:
> From: Eric <spamsink at scoot.netis.com>
> Subject: How to mount an LVM volume? (was lvm2 problem)
> To: fedora-list at redhat.com
> Date: Monday, September 22, 2008, 1:41 PM
> At 12:45 PM 9/22/2008, Chris Tyler wrote:
>
> >>>>>
> >The specific commands you need are vgscan and vgchange;
> access to the
> >logical volume will be through
> /dev/mapper/yourVGname-yourLVname
> >(or /dev/yourVGname/yourLVname) and not /dev/sdb*
> (which is the raw
> >partition containing a PV).
> >
> >(Although the context is different, there are some
> examples of
> >vgscan/vgchange usage here:
> >http://dailypackage.fedorabook.com/index.php?/archives/159-.html
> )
> >>>>>
>
> Good afternoon, Chris.
>
> My problem is related but not exactly the same. In my case
> I have
> upgraded from FC5 to F9 by doing a fresh install on a new
> hard drive,
> and I need to mount the old FC5 boot disk to copy some
> stuff off of it.
>
> "mount /dev/sdb2 /driveb" doesn't work for
> the reasons noted
> (/dev/sdb2 is a container and not a volume).
>
> So, I said "lvm vgscan" and got:
>
> File descriptor 20 left open
> Reading all physical volumes. This may take a while...
> Found volume group "VolGroup00" using metadata
> type lvm2
> Found volume group "VolGroup00" using metadata
> type lvm2
>
> Then I said "pvs" and got:
>
> File descriptor 20 left open
> PV VG Fmt Attr PSize PFree
> /dev/sda2 VolGroup00 lvm2 a- 111.59G 32.00M
> /dev/sdb2 VolGroup00 lvm2 a- 76.22G 32.00M
>
> (Hope the formatting and column alignment on the above
> doesn't come
> through all screwed up...)
>
> Apparently it thinks that both volumes are named VolGroup00
> (instead
> of ...00 and ...01) so things like lvm vgchange don't
> do any good
> because it doesn't know which VolGroup00 to make
> available.
>
> /dev/mapper contains:
>
> crw-rw---- 1 root root 10, 60 2008-09-22 11:20 control
> brw-rw---- 1 root disk 253, 0 2008-09-22 15:20
> VolGroup00-LogVol00
> brw-rw---- 1 root disk 253, 1 2008-09-22 11:20
> VolGroup00-LogVol01
>
> ... with no corresponding LogVol00/01 for VolGroup01 (since
> the
> system was told that both of the volumes are named
> VolGroup00).
>
> I've Googled everything I can think of and am out of
> ideas.
>
> Thanks...
>
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Eric,
You can try to use Slax Linux Live CD(get the latest slax608rc6.iso.
http://www.slax.org/forum.php?action=view&parentID=17340
or you can also use:
http://forums.fedoraforum.org/showthread.php?p=707874
to find out answers!
HTH,
Antonio
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