Re: Xen curiosity

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On Sun, 2006-07-02 at 13:27 -0400, Tom Horsley wrote:
> Just curious:
> Suppose I have a system with several separate boot partitions
> on it and several version of linux on the different partitions.
> Can I install the Xen kernel on one of them, then teach Xen
> to run the existing kernels from the other boot partitions
> as guests?
> Or does Xen insist on being the one who installed things to
> be able to run them?

You can only run *unmodified* OSes on VT or Pacifica hardware.  

If you don't then you will need to run Xenified kernel's to boot each of
them, but yes you can use the existing boot partitions and define them
as xvda's in the domU config, eg:

disk = [ 'phy:/dev/hda1,xvda1,w',
         'phy:/dev/hdb4,xvdb1,w' ]

> Let's make it an even bigger challenge: Suppose the kernels
> are a mix of i386 and x86_64 kernels, can Xen run mixed
> architecture guests at the same time?

No sure on this one.

Take care,


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