I'm trying to apply the first image from MDT 2010 Update 1 to a HP Elite 8200 SFF workstation. This workstation will become my reference machine, on which I will try to generate my reference image.
When booting from the WinPe iso generated from my MDT workbench I get the following error:
"Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks."
I started looking into this issue, as EFI/GPT etc is new to me.
-In the bios there is no option to choose between EFI or BIOS boot.
-From the Boot Order option I can enable/disable the EFI sources and/or the Legacy devices.
-The system disk is listed as legacy device.
-Disabling the EFI sources doesn't change the behaviour.
After reading the web I found, on technet, the article called: Create UEFI-based Hard-Disk Partitioned by Using Windows SIM.
I edited the unattend.xml for the used image from the MDT Workbench. So after the the Format and Partition step from the task sequence (creating 2 MBR partitions) the disk is wiped and 3 partitions GPT based are generated (I verified (DISKPART) that this happens in the end).
Now, however, the process of applying the image to my reference machine (using the updated WinPe iso from MDT Workbench) stops with the error (to my frustration/surprise):
"Windows cannot be installed to this disk. The selected disk is of the GPT partition style"
So, what next??
I also found the entry on this forum called: "How-To install 2008 R2 on UEFI systems using GPT disk using MDT 2010 with Update 1". I'm not sure how/whether this is applicable to Windows 7 too. I seem to have no problem to create the 3 partitions from the unattend.xml. Just removing the "Format and Partition Disk" step doesn't sound sufficient.
Any clues on how to persuade MDT to install the image to the GPT disk?
The entry, on 2008 R2 in this forum, also mentions to boot your UEFI system using "Legacy Mode" when using MBR based (system)disk. Should this option be there, on all UEFI based systems? I've not found anything in the BIOS, where should I look for??
Andy