Re: [linux-lvm] Help! VG corrupted?

[Ben <kf4wbx@hamsnet.net>]

Sorry for the accidental repost :(

I will try to get a newer version of LVM installed this week and give
you the response from vgck.

BTW, is it safe for me to just use the 1.0.1rc4 utils and kernel on a VG
created with the 0.9 release?

Until then,
thanks for your advice.
-BAK


On Tue, 2001-11-20 at 05:36, Heinz J . Mauelshagen wrote:
> 
> Ben,
> 
> what does vgck(8) tell you about the health of your LVM on disk metadata?
> BTW: it is recommended that you upgrade to LVM 1.0.1
> 
> On Mon, Nov 19, 2001 at 02:12:31PM -0500, Ben wrote:
> > Hello,
> > 
> > I am running Mandrake 8.1 which installs Linux LVM 0.9.  I've read posts
> > that mention that 0.9 is "bad for your health."  While I'm not totally
> > sure why or how, it seems to be the case for me as well.
> > 
> > I installed the OS and ran find with one IDE HD partition dedicated
> > (/dev/hda9, one VG on one PV) to LVM and two LV's (/usr and /var).
> > Yesterday, I added another partition (/dev/hda7) and added its PEs to
> > the VG.  I thhen added the newly added PE's to the /usr LV.  Everything
> > was great.  Then I rebooted.  Upon reboot, I got:
> > [root@cray]# vgscan -v
> > vgscan -- removing "/etc/lvmtab" and "/etc/lvmtab.d"
> > vgscan -- reading all physical volumes (this may take a while...)
> > vgscan -- scanning for all active volume group(s) first
> > vgscan -- found inactive volume group "vg0"
> > vgscan -- reading data of volume group "vg0" from physical volume(s)
> > vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" can't get
> > data of volume group "vg0" from physical volume(s)
> > vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" creating
> > "/etc/lvmtab" and "/etc/lvmtab.d"
> > [root@cray]#
> > 
> > I then tried the vgcfgrestore, which ran sucessfully.  Now I get vgscan
> > reporting no volumes.  Found a reference on how to fix this (using dd
> > and reading uuids from pv's, then writing them back to the disk).  That
> > procedure brings me back to the starting point.
> > 
> > It seems the data is there because pvscan reports:
> > 
> > [root@cray]# pvscan
> > pvscan -- reading all physical volumes (this may take a while...)
> > pvscan -- inactive PV "/dev/ide0/host0/bus0/target0/lun0/part7" is
> > associated to an unknown VG (run vgscan)
> > pvscan -- inactive PV "/dev/ide0/host0/bus0/target0/lun0/part9" is
> > associated to an unknown VG (run vgscan)
> > pvscan -- total 2 [12.02 GB] / in use: 2 [12.02 GB] / in no VG: 0 [0]
> > [root@cray]#
> > 
> > One more note of interest:  My partitions on disk are out of order.
> > hda7 occupies cylinders 2848-3736 and hda9 occupies cylinders 2168-2847.
> > 
> > [root@cray]# fdisk /dev/hda
> > Command (m for help): p
> > 
> > Disk /dev/hda: 255 heads, 63 sectors, 3763 cylinders
> > Units = cylinders of 16065 * 512 bytes
> > 
> >    Device Boot     Start       End      Blocks    Id  System
> > /dev/hda1  *           1       934     7502323+    b  Win95 FAT32
> > /dev/hda2            935      3736    22507065     5  Extended
> > /dev/hda5  *         935      1874     7550518+    7  HPFS/NTFS
> > /dev/hda6           1875      2135     2096451    83  Linux
> > /dev/hda7           2848      3736     7140861    8e  Linux LVM
> > /dev/hda8           2136      2167      256977    82  Linux swap
> > /dev/hda9           2168      2847     5462037    8e  Linux LVM
> > 
> > Partition table entries are not in disk order
> > 
> > 
> > 
> > 
> > So, can anyone help me?  Would recreating the VG and adding the PV's to
> > it restore access to my data?  Or would I just blow it all away in the
> > attempt?
> > 
> > Please send responses directly to kf4wbx@hamsnet.net
> > 
> > 
> > Thanks for any help!
> > -Ben K
> > kf4wbx@hamsnet.net
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > _______________________________________________
> > 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
> 
> 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@Sistina.com                           +49 2626 141200
>                                                        FAX 924446
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> 
> _______________________________________________
> 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
>