From mboxrd@z Thu Jan 1 00:00:00 1970 From: James W Anderson Message-ID: <20030424163942.GH12350@mit.edu> Mime-Version: 1.0 Content-Disposition: inline Subject: [linux-lvm] restoring volume group from file Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Thu Apr 24 11:39:02 2003 List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@sistina.com Hi, I recently made a copy of an lvm partition to a file, using dd: dd if=/dev/hde5 of=lvm-file bs=... I would now like to mount this file, which contains a single volume group, on a different machine. Here is what I have done so far: 1) create a loopback device for the file # losetup /dev/loop0 lvm-file 2) pvscan, detects the volume group # pvscan pvscan -- reading all physical volumes (this may take a while...) pvscan -- inactive PV "/dev/loop0" of VG "vg00" [23.45 GB / 3.20 GB free] pvscan -- total: 1 [23.46 GB] / in use: 1 [23.46 GB] / in no VG: 0 [0] 3) Now, when I try to do vgcfgrestore, I get the following error: # vgcfgrestore -n vg00 -f vg00.conf -o /dev/hde5 /dev/loop0 vgcfgrestore -- size of physical volume /dev/loop0 differs from backup I tried passing the -i option to tell it to ignore the size difference, and then it did create the volume group, but all of the logical volumes are unusable---e2fsck cannot find the superblocks on the filesystems. Does anyone have any suggestions as to what I might try to get this to work? Any help would be tremendously appreciated. Many thanks, James