> Is there any (easy?) way to migrate running standalone CentOS 4 or 5 > systems to xen virtual stacks? > > Rebuilding those systems from scratch on the xen machine would take > plenty of work. I did so but it can be a bit tricky. You need to make sure you have the needed kernel installed and also configured disk modules and mount points and such. Then you can use tar or rsync to migrate the whole system. Maybe you can install one guest just for test and see how exactly it must be configured. Then you configure the live systems the same way. I can't tell you exactly because it's long time ago - and it's not really easy :) Simon