The source server is a physical asset the target is a virtual on Hyper-V server.
Unfortunately the installation fails at the last step producing simply a blank black screen after the final reboot and loading Windows progress bar (45 minutes).
We appear to be unable to work around this issue no amout of reboting or boot options allow you to avoid this issue. There is no response from keyboard at this point but the system does not appear to crash as such CPU usage is non existant.
We have tried repeating this methodology in a lab environment with a freshly installed Windows 2003 SBS server and the same happens.