Hi! Try using "CentOS 6.4 (64bit)" instead of "CentOS 6.5 (64bit)" for the CentOS VM, that worked for me. AFAIK Cloudstack thinks that XenServer 6.2.5 (which is basically XenServer 6.2 with a specific set of updates&patches) cannot support CentOS 6.5.
Regards, Martin -----Ursprüngliche Nachricht----- Von: motty cruz [mailto:motty.c...@gmail.com] Gesendet: Donnerstag, 14. August 2014 00:46 An: users@cloudstack.apache.org Betreff: Re: unable to install instances on Cloudstack 4.4, hypervisor XenServer