I have a physical server running Debian 6 and Xen Hypervisor 3.2.1, and kernal -a says "2.6.26-1-xen-amd64". I have not updated for a long time, because when I run apt-get upgrade, one of the updates is linux-image-2.6-amd64. My understanding was that my kernel needs to have Xen support, will upgrading to this kernel break my dom0? I have myself up against a wall, because I host a VM for a website that isn't mine, so I need the latest security updates, but can't risk taking them offline. Eventually they will move off, and I won't be hosting something I am unqualified to host, but that isn't the point right now.