[linux-lvm] Re: lvm 1.0.3, kernel 2.4.17 and the libs...
Heinz J . Mauelshagen
mauelshagen at sistina.com
Wed Feb 27 11:41:02 UTC 2002
On Wed, Feb 27, 2002 at 12:28:03PM -0500, Daniel Savard wrote:
> le mar 26-02-2002 à 17:56, Andreas Dilger a écrit :
> > On Feb 26, 2002 17:28 -0500, Daniel Savard wrote:
> > > I did mkfs.ext2 on /dev/sda8 !!! However, this was still pointing to my
> > > LVM partition even if fdisk was not showing this.
> > >
> > > The big question: Is it still possible to recover some data from the LVM
> > > partition which was the only partition in my VG?
> >
> > Well, mke2fs writes a LOT of data into the partition, being especially
> > careful to overwrite everything at the start of the disk. It might be
> > possible to recover this with "vgcfgrestore", but even then you have the
> > problem of overwriting the rest of the data on the disk. If the primary
> > ext2 superblock is overwritten on an LV inside this disk, you can use
> > "e2fsck -b 32768" or so to try and recover.
> >
> > Cheers, Andreas
> > --
> > Andreas Dilger
> > http://sourceforge.net/projects/ext2resize/
> > http://www-mddsp.enel.ucalgary.ca/People/adilger/
> >
>
> Since my LVM partition has been moved by the operations on the
> partitions with fdisk. I had to use the vgcfgrestore command as follow
> and getting the following error:
>
> [root at einstein sbin]# vgcfgrestore -n datavg -o /dev/sda9 /dev/sda7
> vgcfgrestore -- INFO: using backup file "/etc/lvmconf/datavg.conf"
> vgcfgrestore -- ERROR "pv_read(): PV identifier invalid" reading physical volume "/dev/sda7"
>
> Is there still something I can try or should I forget it?
"pvcreate -ff /dev/sda7" before you try vgcfgrestore again.
>
> --
>
> =======================================
> Daniel Savard
>
> Internet: dsavard at cids.ca
> =======================================
>
>
>
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> 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
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