On Sat, Mar 29, 2008 at 4:36 AM, John <jses27 at gmail.com> wrote: > http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU In reading that > How To, will using the GUI Configuration Tools create all the files need > to run a "DomU". Will I have manual edit any configuration files? Yes, you can use virt-manager to do this. > Next question is the machine has 256MBs of ram and Dom0 uses about > 225MBs of it. Is that a bit much? VmWare Server does not use that much > ram. See #top Below....With out running the Xen Kernel it has no where > near the ram usage as with the Xen one. Is that expected? dom0 takes the memory it can use, but if you create a domU, Xen will use "ballooning" to reduce the amount of memory allocated to dom0. You can set the minimum of dom0 memory in /etc/xen/xend-config.sxp by tweaking the dom0-min-mem option. Be aware that the hypervisor also takes a chunk of memory, so you may want to add more memory to get a useful setup. Take care, Daniel