[linux-lvm] LVM ate my data!
Heinz J . Mauelshagen
mauelshagen at sistina.com
Mon Feb 25 12:28:02 UTC 2002
On Mon, Feb 25, 2002 at 06:09:09PM +0000, lvm-mail at wbh.org wrote:
> Hiya.
> I've just upgraded my kernel, and on booting my LVM setup isn't
> recognised. Going back to the old kernel, it still isn't.
> Running vgscan gives:
> vgscan -- reading all physical volumes (this may take a while...)
> vgscan -- found inactive volume group "pvg"
> vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" can't get data of volume group "pvg" from physical volume(s)
> vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" creating "/etc/lvmtab" and "/etc/lvmtab.d"
>
In case *all* your PVs making up your VG are accessable, your LVM metadata
looks toasted.
> OK, create a new vg and import?
No.
You need to "pvcreate -ff" your PVs and vgcfgrestore a metadata backup
to all of them.
Before doing so, you can save your actual metadata for recovery in case
something goes badly wrong with:
for d in /dev/hda[34]
do
dd if=$d of=$(basename $d).vgda bs=1k count=1k
done
So, assuming /dev/hda[34] are all your PVs which belonged to the missing VG
(otherwise add those), figure out the recent metadata backup in /etc/lvmconf.
Say /etc/lvmconf/VG.conf would be the one.
Then run:
pvcreate -yff /dev/hda[34]
vgcfgrestore -n YourVGName /dev/hda3
vgcfgrestore -n YourVGName /dev/hda4
vgscan
vgchange -ay
> vgcreate gives:
> vgcreate -- ERROR: "/etc/lvmtab" doesn't exist; please run vgscan
> and pvscan gives:
> pvscan -- reading all physical volumes (this may take a while...)
> pvscan -- inactive PV "/dev/hda3" is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/hda4" is associated to an unknown VG (run vgscan)
> pvscan -- total: 2 [16.88 GB] / in use: 2 [16.88 GB] / in no VG: 0 [0]
>
> Where do I go from here - vgcfgrestore? uuid_fixer? Even something really smelly!
Please upgrade to LVM 1.0.3 and do the pvcreate + vgcfgrestore above.
> Thanks,
> Bill
> (Sorry if this comes over a bit garbled, I'm posting using lynx, 'coz
> pine's somewhere on /dev/hda4 ...)
>
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
--
Regards,
Heinz -- The LVM Guy --
*** 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 at Sistina.com +49 2626 141200
FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
More information about the linux-lvm
mailing list