openstack team mailing list archive

[Ewan Mellor <Ewan.Mellor@xxxxxxxxxxxxx>]

> -----Original Message-----
> From: openstack-bounces+ewan.mellor=citrix.com@xxxxxxxxxxxxxxxxxxx
> [mailto:openstack-bounces+ewan.mellor=citrix.com@xxxxxxxxxxxxxxxxxxx]
> On Behalf Of Soren Hansen
> Sent: 04 August 2011 03:45
> To: Aron Matskin
> Cc: Mark Gius; openstack@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Openstack] some newbie questions
> 
> 2011/8/4 Aron Matskin <aron.matskin@xxxxxxxxx>:
> > It seems to me that it refers to my Ubuntu installation on the guest,
> I've
> > used ubuntu-10.10-desktop-i386.iso , I probably should have
> > used ubuntu-10.10-desktop-amd64.iso . Can anybody confirm this before
> I
> > spend half a day on re-installation?
> 
> You don't *need* to run 64-bit Linux on the host, but if you're
> running a 32-bit Linux kernel on the host, you'll be limited to 32-bit
> guests as well (at least with KVM (for now), not sure about the
> others).

A similar thing is true of Xen too -- a 32-bit hypervisor limits you to 32-bit guests.  XenServer runs a 64-bit hypervisor and a 32-bit domain 0.

Ewan.