2011/8/4 Aron Matskin <aron.matskin at gmail.com>: > 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). -- Soren Hansen | http://linux2go.dk/ Ubuntu Developer | http://www.ubuntu.com/ OpenStack Developer | http://www.openstack.org/