I am trying to learn how to use WDS. I have a lab environment set up with a DC that has DHCP and WDS installed. WDS is configured to respond to all clients, and require admin approval for unknown computers. I have an install image and boot image loaded. The server and test client are running in VirtualBox.
For my test client I have enabled network boot in the VirtualBox settings. However, when I start the client all I get is a blank screen with a solid white underscore (as attached). When i start up a server core test box my DHCP is working just fine. Any ideas as to what I'm doing wrong?