I am running CentOS 5.4 (both i386 and x86_64 - different physical machines)... I've been able to get Fedora 11 running as a Xen guest - no trouble. However, I have had no luck with Fedora 12. My kickstart file lists /boot as ext3 - but for whatever reason Fedora 12 insists on making /boot ext4. I do have a bare metal machine running Fedora 12, so I thought "let me try to put together a kickstart file denoting /boot as ext3." I ran system-config-kickstart and about the only difference I saw in syntax was --fstype="ext3" versus what I was doing which is --fstype ext3 So, I changed my kickstart file to reflect --fstype="ext3" - the result is still the same: Fedora 12 insists /boot be ext4. As a result, when I run xm create <fedora vm name>, it fails stating "Error creating domain: Boot loader didn't return any data!" Please note, this is the same kickstart file I use to install CentOS 5.4 (and in the past 5.3) guests - as well as Fedora 11 guests. Has anyone managed to get Fedora 12 running as a Xen guest??? Scot P. Floess 27 Lake Royale Louisburg, NC 27549 252-478-8087 (Home) 919-890-8117 (Work) Chief Architect JPlate http://sourceforge.net/projects/jplate Chief Architect JavaPIM http://sourceforge.net/projects/javapim Architect Keros http://sourceforge.net/projects/keros