Mailing the story:
Install OpenSolaris 2008/05 DomU at Ubuntu 8.04 Desktop (Server) Xen 3.2 Dom0 (both 64-bit)
Instructions mentioned bellow in general follow up the ones in my previous post, regarding OpenSolaris 2008/05 DomU at Xen 3.2.1 CentOS 5.1 Dom0 (64-bit). However, Xen 3.2.1 Dom0 had been built on CentOS 5.1 from the source obtained by cloning Mercurial Repository@xensource.com. Install Xen on Ubuntu 8.04 had been performed from Ubuntu Repositories and the patched as usual.