Well I have an Xen server, I've got a CentOS container up fine but a friend of mine wants (oh god) Ubuntu Server 12.04, why he can't use Debian is beyond my understanding. But anyways, I can't remember how I installed the CentOS container but I'm giving virt-manager a try now, since I don't have a disk image already the only option is to get a Network Install URL since I'm using PV.
So does anyone know what I should type in there, if it was CentOS I could easily type http://mirror.centos.org/centos/6.2/os/i386 for example. The furthest I've got in finding a suitable URL is http://archive.ubuntu.com/ubuntu/dists/precise/ but that of course wont work.
Any ideas?