Server 2012 R2, EFI and vSphere 5.1 = Hang during OSD

I'm currently testing Server 2012 R2 deployment via SCCM 2012, on a VMware Virtual Machine.

I've run into an issue where if the VM firmware is set to EFI instead of Legacy BIOS the machine hangs during the Task Seqeunce - the OS image is downloaded and written to disk, the machine reboots to continue with the TS and then hangs at the blue Windows logo, never to progress any further - screenshot here, same issue with Windows 8:

http://www.cb-net.co.uk/microsoft-articles/34-configmgr/2078-configmgr-windows-8-uefi-and-vmware-esxi-5

ESXi platform is version 5.1, Virtual Machine Hardware Version is 9 - tested with version 8 as well.

Has anyone got this working successfully?

Thanks, Chris

MCTS 70-640 | MCTS 70-642 | Prince2 Practitioner| ITIL Foundation v3 | http://www.cb-net.co.uk