Xen boot problem

I have a fresh installation of Leap 42.2, installed Xen via “Install Hypervisor and Tools”. When I try to boot with Xen I am getting error: cannot load image.

Version used: Xen 4.7.1_04-6 with Linux 4.4.36-8-default

Any help appreciated.

The problem is resolved: The problem was in the BIOS settings. In my case the OS is running from an external USB hard drive. When I explicitly set to treat the USB drive as a hard drive, the error disappeared.