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

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

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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