openstack team mailing list archive

[Alessandro Pilotti <apilotti@xxxxxxxxxxxxxxxxxxxxxx>]

Hi Bruno,

During the first boot after sysprep, Windows disinstalls and reinstall drivers based on PNP, but this is unfortunately having issues on XenServer/XCP so our Cloudbase-Init unattend.xml used during sysprep avoids removing the drivers on boot.

We still have to test a XenServer/XCP image booted on Hyper-V, but it's IMO a feasible way to go.


Best,

Alessandro


On May 10, 2013, at 18:31 , Peter Pouliot <ppouliot@xxxxxxxxxxxxx<mailto:ppouliot@xxxxxxxxxxxxx>> wrote:

>From a driver wise perspective.   Windows has the hyper-v bits baked in to achieve partial paravirtualization/enlightment.   The problem obviously is moving the data from one virtual disk format to another.


In theory

Peter J. Pouliot, CISSP
Senior SDET, OpenStack

Microsoft
New England Research & Development Center
One Memorial Drive,Cambridge, MA 02142
PPOULIOT@xxxxxxxxxxxxx<mailto:PPOULIOT@xxxxxxxxxxxxx> | Tel: +1(857) 453 6436

-----Original Message-----
From: Openstack [mailto:openstack-bounces+ppouliot=microsoft.com@xxxxxxxxxxxxxxxxxxx<mailto:bounces+ppouliot=microsoft.com@xxxxxxxxxxxxxxxxxxx>] On Behalf Of Bruno Oliveira
Sent: Thursday, May 9, 2013 5:26 PM
To: openstack
Subject: Re: [Openstack] [HyperV][xen] Porting Windows disk_image from xen to HyperV

I forgot to mention that I found this doc mentioning how to migrate http://jeff-brady.blogspot.com.br/2011/12/linux-on-hyper-v-migrate-redhat-vm-from.html

*But* I'm more concerned for the aspect of driver-wise.
Technically a xen-to-hyperV image will boot, would it be auto-suficient?

I mean, would I have to reinstall all drivers ?

thanks



On Thu, May 9, 2013 at 6:12 PM, Bruno Oliveira <brunnop.oliveira@xxxxxxxxx<mailto:brunnop.oliveira@xxxxxxxxx>> wrote:
Hi guys,

I've got a quick question regarding HyperV and Xen virtualization
modes and their compatibility.

Can you help me out on this? Here's the deal:

Knowing that when xen boots up a Windows box, it goes as "HVM"
(Hardware Virtualization) but needs some "PV"
(Paravirtualization) drivers...

And that Hyper-V *does* work with Windows in HVM (without the
PV-drivers), theorically and tecnically, is there a way I could have a
"Windows Server" which the disk_image is xen-based ported to HyperV ?
Even if I have to apply some process in the way

Thank you!

Regards,

Bruno de Oliveira
System Analyst, Developer
skype: brunnop.oliveira
brunnop.oliveira@xxxxxxxxx<mailto:brunnop.oliveira@xxxxxxxxx>

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