I have a number of vm's running under XEN on a SLES11 SP2, one of which is a Windows 2008R2 server. I have just run the latest windows updates on this server, and when I have rebooted this server, it fails to load with the message missing BOOTMGR. I have re-installed a backup image and tried it again with the same result!!

Anyone else had this problem or can offer any ideas on what is creating the problem, as I am tired of installing 200GB of server from tape. Note: this has worked flawlessly for a number of years.