Re: [Xen-users] graceful windows guest shutdown/restart

[Nathan Goulding <ngoulding@xxxxxxxxx>]

On Dec 22, 2011, at 4:59 PM, Nathan Goulding wrote:

>> Am 22.12.2011 19:00, schrieb Nathan Goulding:
>>> Specifically: "One of the big problems of Windows XP under Xen is that 
>>> Windows Setup chokes on Xen's ACPI, and thus you have to disable ACPI for 
>>> Windows Setup to work."
>>> Anyone know if that's still a problem?
>> 
>> I've not found this to be a problem when running Windows Server 2008R2 (as 
>> it comes with SBS 2011 Standard, German); that setup runs properly, and I 
>> haven't seen reboot problems like you mentioned. Most probably, SBS 2011 
>> already comes with some form of patched Windows, so I'd take this report 
>> with a grain of salt.
>> 
> 
> At this point the success rate of installs is ~5% and declining as I attempt 
> more things for reliability. Interestingly enough, once Windows 2008 R2 is 
> installed it seems to work fine with the settings I have in my vm config 
> file. xm reboot, xm shutdown -wR, and rebooting from within the guest OS all 
> work. Just the install that causes a problem.
> 
> FWIW, the storage backing is iSCSI with a block-iscsi script and some 
> modifications to XendDomainInfo.py and qemu-dm to account for that.
> 
> Also, there seem to be myriad power control options and actions 
> (xen_extended_power_mgmt, xen_platform_pci, pci_power_mgmt, viridian, acpi) 
> but I can't seem to hit the sweet. Can someone with knowledge of Xen explain 
> how it handles power control and its interaction with Windows?

As an update to anyone out there with a similar problem: It's necessary that 
the GPLPV drivers be pre-installed for Windows Setup to complete with sysprep'd 
images. Windows Setup will consistently fail on Xen's ACPI if they're not.

So it would appear that the old wiki's statement that "[o]ne of the big 
problems of Windows XP under Xen is that Windows Setup chokes on Xen's ACPI, 
and thus you have to disable ACPI for Windows Setup to work." is still accurate 
for Xen 4.1. Since with Server 2008 it's not possible to disable ACPI you have 
to install 2008 manually (i.e. from CD/iso), then install the GPLPV drivers, 
then sysprep, then you're good.

-Nathan
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