ok.. found the problem. The config file had pae=0. Changed it to pae=1 and now it is working.

/Jd

--- On Thu, 1/29/09, jd jdsw2002@yahoo.com wrote:

From: jd jdsw2002@yahoo.com Subject: CentOS 5.2 (x86_64) : 64 bit HVM VM fails. To: centos-virt@centos.org Date: Thursday, January 29, 2009, 3:48 PM hi I am trying to do an installation of 64 bit HVM from a CDROM, the Dom0 is 64 bit. I am getting "pae not supported" !!

(as a side note, failure on RHEL 5.2 is different 'long not supported on your cpu, use a 32-bit version' .. cpu is 64 bit AMD and so is Dom0)

Do I need to tweak anything ?

Thanks /Jd