On Mon, May 28, 2007 at 11:29:03AM -0400, David Mackintosh wrote:
Hi folks,
Now that CentOS 5 is out with Xen, I can theoretically take better advantage of my nice Intel processor with the virtualization piece than I can with VMware Server.
You can't. Xen's fully virtualized hardware implementation isn't as fast as VMware's. Also, there are no para-virtualized drivers for HDD, lan or video for Windows, as there are in VMware.
Ideally what I would like to do is install CentOS 5 as a dom0, then run my existing CentOS 4.x installation as a domU while I figure out how to do other interesting things (like install Solaris 10 and Windows as domU installations).
CentOS 4 and OpenSolaris as paravirtualized will be much faster than under VMware. But Windows can only run as fully virtualized.
Does anyone have any links to pages which might show me how to use Xen to run an existing, already-installed CentOS (or RedHat) under Xen as a domU?
yum -y install kernel-xenU :)
That should create the initrd and kernel that you can then use in Xen.