Hello, After installing a fresh fc5, I followed fedoraproject.org/wiki/FedoraXenQuickstartFC5 up until xenguest-install.py part. After that point for a quick try I downloaded both fc4 and debian prebuilt images from jailtime.org . However both images, as I boot them with xm create -c {related one}.cfg , crash with this error: VFS: Cannot open root device "sda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) I did extensive googling and mounted the images, cheking their fstab and so on. Everything looks fine. But the problem is unresolved. Does anybody have any experiences with jailtime images? any suggestions? BTW my host fc5 has LVM partitioning. Very unlikely but can this have an effect? Have a nice day. -- Murat Isik www.bilgiguvenlik.com