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Re: [Xen-users] Error moving DomU image to LVM

To: "Johnson, Tony M" <Tony.Johnson@xxxxxxxxx>
Subject: Re: [Xen-users] Error moving DomU image to LVM
From: Igor Chubin <igor@xxxxxxx>
Date: Wed, 2 Apr 2008 11:21:18 +0300
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On Di, Apr 01, 2008 at 11:54:07 -0400, Johnson, Tony M wrote:
> In creating LVMs during the Fedora install. I created the following
> layout;
> /dev/sdb
>    /dev/sdb1     /boot
>    /dev/sdb2     VolGroup01
>    /dev/sdb3     VolGroup02
> VolGroup00
>   LogVol01       swap
>   LogVol00       /
> VolGroup01
>   LogVol00      /guest1
>   LogVol01      /guest2
> I then used virt-install to create HVMs. However I created them using a
> file system: '/xen/file.img'.
> Later I used the dd command to copy the image as follows: dd
> if=/xen/file.img of=/dev/VolGroup01/guest1
> I added the following to the config: disk =
> ['phy:VolGroup/guest1,xvda1,w'] and get the following error: Error:
> Device 770 (vbd) could not be connected. Device /dev/VolGroup01/guest1
> is mounted in the privileged domain, and so cannot be mounted by a
> guest.
> After rebooting I get this error: fsck.ext3: Bad magic number in
> super-block while trying to open /dev/VolGroup01/guest1

Do file /xen/file.img contains only one partition or all the system
(with MBR and so on)?

If /xen/file.img contains MBR (and one or more partitions), 
you sholed specify 
instead of

If it works, you can split partitions (insidde /xen/file.img) 
to several volumes, in a way described here [1], [2].


> Can I recover from the above if so how? What is the correct procedure to
> convert the image to the LVM? 

dd is ok

> Help is greatly appreciated!

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WBR, i.m.chubin

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