Hi, I'm trying to find out how to install an Ubuntu guest on a Centos 6 Host without using an ISO but I cannot find the proper URL to use. I usually only use Centos guest and one URL from a mirror would be "http://ftp.halifax.rwth-aachen.de/centos/6.3/os/x86_64" but I can't find the corresponding Ubuntu version of such an URL on Google. Any ideas? Regards, Dennis