Re: [Xen-users] 32bit DomU on 64-bit Xen

[Lionel Bouton <lionel-subscription@xxxxxxxxxxx>]

Petersson, Mats wrote the following on 24.10.2006 17:46 :
>  
>
>   
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> > Lionel Bouton
> > Sent: 24 October 2006 16:14
> > To: xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: [Xen-users] 32bit DomuU on 64-bit Xen
> >
> > Hi,
> >
> > from what I could find digging around, it is ok to run a 32-bit DomU 
> > with a 64bit Xen/Dom0 as long as you use linux32 to avoid the package 
> > utilities from trying to install 64 bit packages in the DomUs.
> >     
> Ehm, no you CAN NOT run 32-bit DomU on a 64-bit Xen/Dom0, because all
> kernel modes must be the same (32-bit no PAE, 32-bit PAE or 64-bit).
>   
What I thought was possible is to start the 32-bit DomU with a 64-bit 
kernel and use a custom initrd to call linux32 before /sbin/init -> the 
whole DomU could still be 32-bit, but the kernel would be 64-bit. I'm 
wondering if there could be problems with some userland system utilities 
like iptables though.
Can't this work?

Lionel

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