Sorry for the stupid question, but I can't find answer to such question: ANY system can be installed as the virtual machine or only some supported systems. The Xen wiki page for this question is very old. Can I, for example, install CentOS as the main OS and Mandriva as the virtual host? Thank you for advice.
If you use hardware virtualization, you can install any OS as a guest. If you use paravirtualization (which needs a special guest kernel), then not all OS are supported.
