Hi all, The CentOS 5.4 x86_64 tree seems to be missing a .treeinfo file: http://mirrors.tummy.com/mirrors/CentOS/5.4/os/x86_64/.treeinfo compared to http://mirrors.tummy.com/mirrors/CentOS/5.4/os/i386/.treeinfo This is useful info, as virt-install and virt-manager use this to detect the URL distro, which allows us to enable goodies like virtio for sufficiently new distros (5.4 included)*. - Cole * 5.4 detection isn't actually present in 5.4 virt-install, is available upstream.