Re: [linux-lvm] Re: lvm 1.0.3, kernel 2.4.17 and the libs...

["Heinz J . Mauelshagen" <mauelshagen@sistina.com>]

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@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@cids.ca
> =======================================
> 
> 
> 
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-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
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