Re: Windows under KVM + dual boot

[David Abrahams <dave-UB3wUj7V41K5azolltMz9laTQe2KTcn/@public.gmane.org>]

on Wed Apr 11 2007, Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w-AT-public.gmane.org> wrote:

> David Abrahams wrote:
>>>> I want to be able to launch the same windows installation under KVM/Linux
>>>> that I can also boot into directly.  Are there instructions somewhere
>>>> for that?
>>>>
>>>> I could try to adapt http://www.motin.eu/www/mirror/physvmware/, but I
>>>> would prefer to have something more kvm-specific if possible.
>>>>   
>>>>       
>>> I'm not aware of anyone doing this currently although I suspect that 
>>> it's definitely possible.  If you have any success, documenting it in 
>>> the wiki would be greatly appreciated!
>>>     
>>
>> Unfortunately, KVM core dumps the instant I select XP from my grub
>> menu.  By contrast, it will happily launch a linux kernel (on
>> partitions other than the ones I'm booted into; don't worry).  This
>> makes me think that it's probably not a driver problem, although I
>> could of course be wrong.
>>
>> Anyone care to help me diagnose this one?
>>   
>
> We probably misemulate something that grub uses when chainloading 
> another bootloader.
>
> A good test is running with -no-kvm.  

The VM hangs immedately, with a few random characters scattered across
its console.

> The gdb backtrace from the core dump is also interesting.

Happy to try that, but where is it putting the core dumps?  I can't
find them.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com

Don't Miss BoostCon 2007! ==> http://www.boostcon.com


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