It's not very hard to compile Xen for Centos 5.5, I did it last week using xen 4.0.1 and 2.6.32.21 pv_op dom0 kernel. Let me know if you need any help. -- View this message in context: http://xen.1045712.n5.nabble.com/How-to-upgrade-to-Xen-4-0-1-on-Centos-5-5-tp2839552p2839692.html Sent from the Xen - User mailing list archive at Nabble.com. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users