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Re: [Xen-users] Migrating XEN VMs on CentOS 4.4 to CentOS 5

To: Wayne Mallett <wayne.mallett@xxxxxxxxxx>
Subject: Re: [Xen-users] Migrating XEN VMs on CentOS 4.4 to CentOS 5
From: Nico Kadel-Garcia <nkadel@xxxxxxxxx>
Date: Wed, 09 May 2007 18:52:29 +0100
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Wayne Mallett wrote:
G'day All,

I have a number of VMs that I installed on CentOS 4.4 with custom dom0 and domU kernels. All VMs reside on logical volumes and a
disk = [ 'phy:/dev/vg0/name,sda1,w', ...]
type entry can be found in the XEN configuration file. I have been searching on and off for a week (no success) trying to find out how to move these VMs onto a CentOS-5 system - using the XEN implementation that comes with this O/S.

I suppose what I'm asking is how do I move existing VMs from sda to xvda disks within XEN.
Don't bother. Simply continue to use them as "sda" devices, which is what I do. Also, getting a non-standard kernel to operate correctly in paravirtualizd mode is going to be fun for you! I wound up using the xensource published kernel-xen-2.6.16 kernel for this.

If you really need to migrate to /dev/xdva names, you'll need to edit /etc/fstab on the / partition to match the new layout, and edit your Xen configuration file appropriately.

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