[linux-lvm] Can't access LVM volume group after changing a non-LVM partition
Heinz Mauelshagen
mauelshagen at redhat.com
Thu Dec 9 11:55:08 UTC 2004
On Tue, Dec 07, 2004 at 02:54:39PM +0100, Òscar Álvarez Vilaplana wrote:
> Hi,
>
> When I try to access my lvm group (for example, running vgdisplay) I
> get the following error:
> Couldn't find device with uuid '5VBBLW-70Dj-fwjf-Xvzc-7VZr-icQa-l9XQ2N'.
> Couldn't find all physical volumes for volume group data.
> Couldn't find device with uuid '5VBBLW-70Dj-fwjf-Xvzc-7VZr-icQa-l9XQ2N'.
> Couldn't find all physical volumes for volume group data.
> Volume group "data" doesn't exist
>
> It happened just right after I deleted a /dev/hda6 (a *non-lvm*
> partition) and created two partitions in the space that the deleted
> partition was occupying (/dev/hda6 and /dev/hda8) (my idea was to
> shrink /dev/hda6, and that did work).
>
> Here's what the partition table looked before and after the change:
>
> before:
> Device Boot Start End Blocks Id System
> /dev/hda1 * 1 1459 11719386 8e Linux LVM
> /dev/hda2 1460 3891 19535040 83 Linux
> /dev/hda3 3892 14593 85963815 5 Extended
> /dev/hda5 3892 5107 9767488+ 8e Linux LVM
> /dev/hda6 5108 14225 73240303+ 83 Linux
> /dev/hda7 14226 14471 1975963+ 8e Linux LVM
> /dev/hda8 14472 14593 979933+ 82 Linux swap
>
> after:
> /dev/hda1 * 1 1459 11719386 8e Linux LVM
> /dev/hda2 1460 3891 19535040 83 Linux
> /dev/hda3 3892 14593 85963815 5 Extended
> /dev/hda5 3892 5107 9767488+ 8e Linux LVM
> /dev/hda6 11796 14225 19518943+ 8e Linux LVM
> /dev/hda7 14226 14471 1975963+ 8e Linux LVM
> /dev/hda8 5108 11795 53721328+ 83 Linux
>
>
> I looked up (in /etc/lvm) the uuid lvm was complaining about and found
> out it corresponds to /dev/hda7. This seems odd, /dev/hda7 should not
> have been affected by the partition deleting & creation... its start
> and end cylinder remained the same throughout the process and there
> was no partition overlapping.
>
> I thought maybe changing the uuid for /dev/hda7 in the /etc/lvm files,
> but I couldn't find how to get the correct uuid for /dev/hda7.
>
> What course of action do you suggest? Is it possible to get the data back?
vgscan ; vgdisplay
>
> Thanks a lot,
> Oscar.
>
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> 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 ***
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Heinz Mauelshagen Red Hat GmbH
Consulting Development Engineer Am Sonnenhang 11
56242 Marienrachdorf
Germany
Mauelshagen at RedHat.com +49 2626 141200
FAX 924446
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