but Heinz is there anyway I can restore a vol group whose .conf file has been deleted -----Original Message----- From: Heinz J . Mauelshagen [mailto:mauelshagen@sistina.com] Sent: 02 June 2003 10:34 To: linux-lvm@sistina.com Subject: Re: 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@bt.com> > To: <linux-lvm@sistina.com> > Sent: Thursday, May 29, 2003 8:03 PM > Subject: 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@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@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@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://tldp.org/HOWTO/LVM-HOWTO/ _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
