On 15/01/08 20:00, Adrian Sevcenco wrote: > Hi! i would like to use some virtual machines in SL4.x .. > Is there someone that experimented with this ? Any advices ? (or horror > stories ?) The kernel in SL4 is not suitable for the hypervisor/dom0, you need at least SL5 (or some Fedora), or replace the SL4 kernel(and some utilities - not realy recommended). SL4 can then run as a domU, with some caveats (cannot mix 32/64 bit doms). Jarek has put together a few recipes at https://twiki.cern.ch/twiki/bin/view/LinuxSupport/XenHowTo Of course, recipes for CentOS and Red Hat would equally apply, e.g http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU Regards jan