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Posted to users@cloudstack.apache.org by Junaid Shahid <ju...@gmail.com> on 2014/03/20 16:24:28 UTC
Is installing xstools.iso drivers enough for Windows VMs?
Hi,
If a Windows VM is spun from a template that is not marked as "Other PV",
rather it is marked as "Windows R2 Std. etc", and we install Xen PV drivers
in that VM by attaching xstools.iso, and reboot it, would the VM start
using new PV drivers or do we have to mark it as "Other PV"?
In our exp. Windows VMs don't need to be marked as "Other PV", and they
still start using PV drivers when and if they are installed.
In KVM for example, the windows VM has to be marked as "Other PV" (in
addition to other necessary steps of course) before the VM starts using PV
drivers (for KVM of course the drivers are different).
Re: Is installing xstools.iso drivers enough for Windows VMs?
Posted by Junaid Shahid <ju...@gmail.com>.
Thanks for the reply!
On CS 4.1 based Xen host , specifying "Other PV" for a windows VM in which
PV drivers have been installed, doesn't cause the VM to crash; the VM boots
and runs OK.. Though specifying or not specifying "Other PV" doesn't have
any effect on a Windows VM. Specifying "Other PV" however for a KVM host
affects both Linux and Windows guests, in regards to PV (virtio) drivers.
Cheers.
On Fri, Mar 21, 2014 at 11:08 AM, Kirk Kosinski <ki...@gmail.com>wrote:
> Hi, no, you should continue to use the applicable Windows OS Types for
> Windows VMs. The PV drivers will work correctly with the correct
> Windows OS Type. Furthermore, on XenServer hosts a Windows VM won't
> work at all with a PV mode OS Type such as "Other PV". Those OS Types
> are only for OSs with PV support in the kernel (i.e. Linux).
>
> Best regards,
> Kirk
>
> On 03/20/2014 08:24 AM, Junaid Shahid wrote:
> > Hi,
> > If a Windows VM is spun from a template that is not marked as "Other PV",
> > rather it is marked as "Windows R2 Std. etc", and we install Xen PV
> drivers
> > in that VM by attaching xstools.iso, and reboot it, would the VM start
> > using new PV drivers or do we have to mark it as "Other PV"?
> >
> > In our exp. Windows VMs don't need to be marked as "Other PV", and they
> > still start using PV drivers when and if they are installed.
> >
> > In KVM for example, the windows VM has to be marked as "Other PV" (in
> > addition to other necessary steps of course) before the VM starts using
> PV
> > drivers (for KVM of course the drivers are different).
> >
>
Re: Is installing xstools.iso drivers enough for Windows VMs?
Posted by Kirk Kosinski <ki...@gmail.com>.
Hi, no, you should continue to use the applicable Windows OS Types for
Windows VMs. The PV drivers will work correctly with the correct
Windows OS Type. Furthermore, on XenServer hosts a Windows VM won't
work at all with a PV mode OS Type such as "Other PV". Those OS Types
are only for OSs with PV support in the kernel (i.e. Linux).
Best regards,
Kirk
On 03/20/2014 08:24 AM, Junaid Shahid wrote:
> Hi,
> If a Windows VM is spun from a template that is not marked as "Other PV",
> rather it is marked as "Windows R2 Std. etc", and we install Xen PV drivers
> in that VM by attaching xstools.iso, and reboot it, would the VM start
> using new PV drivers or do we have to mark it as "Other PV"?
>
> In our exp. Windows VMs don't need to be marked as "Other PV", and they
> still start using PV drivers when and if they are installed.
>
> In KVM for example, the windows VM has to be marked as "Other PV" (in
> addition to other necessary steps of course) before the VM starts using PV
> drivers (for KVM of course the drivers are different).
>