I believe the guest os wants a minimum amount of ram to run the graphical installer. Try bumping up the memory by installing with a larger service offering and see if that helps.
Ahmad On Mar 18, 2013, at 8:23 AM, Paolo De Marco <paolo.dema...@realcomm.it> wrote: > Hello, > I've cloudstack 4.0.1 installed and worked with Xen. > I have sever template. Now I want to add a template with CentOS 6.3 with X > server. I can install all but CentOS start only in text mode... Startx > doesn't work. Same thing with Ubuntu 12.04. > Any idea? > Thanks. > Paolo