$ virt-builder -l centos-6 CentOS 6.5 cirros-0.3.1 CirrOS 0.3.1 debian-6 Debian 6 (Squeeze) debian-7 Debian 7 (Wheezy) fedora-18 Fedora® 18 fedora-19 Fedora® 19 fedora-20 Fedora® 20 scientificlinux-6 Scientific Linux 6.4 ubuntu-10.04 Ubuntu 10.04 (Lucid) ubuntu-12.04 Ubuntu 12.04 (Precise) ubuntu-13.10 Ubuntu 13.10 (Saucy)