Oh what a sunny day!
I had to try a few mirrors to find the complete isos, but it was easy to find a fast one here in germany.
Looking forward to test Xen / pvops installs from Cobbler now.
Importing worked without any intervention, even on my old cobbler version from EPEL
mount -o loop,ro /mnt/CentOS-6.0-i386-bin-DVD.iso /isomount/ cobbler import --path=/isomount --name=CentOS-6.0-i386 mount -o loop,ro /mnt/CentOS-6.0-x86_64-bin-DVD1.iso /isomount/ cobbler import --path=/isomount --name=CentOS-6.0-x86_64
-bash-3.2# cobbler list distros: CentOS-6.0-i386 CentOS-6.0-x86_64