[linux-lvm] help needed
Heinz J . Mauelshagen
mauelshagen at sistina.com
Mon Jun 2 10:13:02 UTC 2003
On Mon, Jun 02, 2003 at 02:04:25PM +0100, narsimha.kulkarni at bt.com wrote:
> but Heinz is there anyway I can restore a vol group whose .conf file has
> been deleted
Heh! ;)
You don't want to tell me that the metadata backup files weren't included
in your regular backup ?
>
> -----Original Message-----
> From: Heinz J . Mauelshagen [mailto:mauelshagen at sistina.com]
> Sent: 02 June 2003 10:34
> To: linux-lvm at sistina.com
> Subject: Re: [linux-lvm] help needed
>
>
> On Fri, May 30, 2003 at 09:42:00AM +0530, Sameer Halgatti wrote:
> > hi narsimha,
> > If u want to completely remove ur PV (i.e. if u want to lose ur data) then
> > there is a very simple way to get rid of this problem. Just do
> following....
> > dd of=/dev/hda3 ......hda3 becuse ur PV resides on that
> > <enter approx 50 chars>
> > <press cntrl+d>
> >
>
> This avoids that you type something LVM might consider to be valid metadata
> ;)
>
> dd if=/dev/zero of=/dev/hda3 bs=512
>
> Regards,
> Heinz -- The LVM Guy --
>
>
> > Of course it not the recommend solution, but it will solve ur problem :-)
> > Actually ur VGDA data on the disk may be corrupted, that's why u r getting
> > this error message.
> > When u create a PV/VG, some data is written on the disk (on some initial
> > disk blocks). So if u erase that by doing 'dd', then u can create fresh
> > PV/VG using that disk.
> >
> >
> > ----- Original Message -----
> > From: <narsimha.kulkarni at bt.com>
> > To: <linux-lvm at sistina.com>
> > Sent: Thursday, May 29, 2003 8:03 PM
> > Subject: [linux-lvm] help needed
> >
> >
> > > hi following is the log of the commands....
> > > i want to remove the volume group completely....
> > > or i want to restore it....
> > >
> > > how do i do it
> > >
> > > vgscan -- reading all physical volumes (this may take a while...)
> > > vgscan -- found active volume group "helena_vg"
> > > vgscan -- ERROR "lv_read_all_lv(): number of LV" can't get data of
> volume
> > > group)
> > > vgscan -- found active volume group "volg"
> > > vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> > > vgscan -- WARNING: This program does not do a VGDA backup of your volume
> > > groups
> > >
> > > vgremove -- ERROR: can't remove active volume group "helena_vg"
> > >
> > >
> > > vgcfgrestore -- locking logical volume manager
> > > vgcfgrestore -- restoring volume group "helena_vg" from
> > > "/etc/lvmconf/helena_vg.conf"
> > > vgcfgrestore -- checking existence of "/etc/lvmconf/helena_vg.conf"
> > > vgcfgrestore -- "/etc/lvmconf/helena_vg.conf" doesn't exist
> > > vgcfgrestore -- a backup for volume group helena_vg is not available
> > >
> > >
> > > pvscan -- reading all physical volumes (this may take a while...)
> > > pvscan -- inactive PV "/dev/hda3" is associated to an unknown VG (run
> > > vgscan)
> > > pvscan -- ACTIVE PV "/dev/hdb1" of VG "volg" [31.48 GB / 31.48 GB
> > > free]
> > > pvscan -- total: 2 [39.08 GB] / in use: 2 [39.08 GB] / in no VG: 0 [0]
> > >
> > > pvchange -- locking logical volume manager
> > > pvchange -- reading physical volume data /dev/hda3 from disk
> > > pvchange -- checking physical volume "/dev/hda3" consistency
> > > pvchange -- finding volume group of physical volume "/dev/hda3"
> > > pvchange -- unable to find volume group of "/dev/hda3" (VG not active?)
> > > pvchange -- unlocking logical volume manager
> > > pvchange -- 0 physical volumes changed / 0 physical volumes already o.k.
> > >
> > > _______________________________________________
> > > linux-lvm mailing list
> > > linux-lvm at sistina.com
> > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> >
> >
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm at sistina.com
> > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
> *** 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
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> =-
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> 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 ***
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
56242 Marienrachdorf
Germany
Mauelshagen at Sistina.com +49 2626 141200
FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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