MDT 2008 Update 1

subject of this post is the error message I am getting. I am doing a custom
partition config which succeeds, the custom wim image is succesfully applied
(win 2k3), reboots and the sysprep mini setup portion runs fine but then
after that next reboot I get that error.

I'm not trying to apply the wim to any partition other than c: (I know thats
not supported). Essesntially I have a task that is a scripted diskpart.exe
session, much the same way MDT's own LTIDiskpart.wsf does.

I had read that you are supposed to be able to customize partitioning using
diskpart.exe in MDT deployments, and I know my partitions are created just
fine, so what MDT thing I'm I missing here that needs to be done to ensure
the process completes? My only guess right now is that I need to add the
RestoreEnvironment routine to the end of my script, just like it is called
at the end of LTIDiskpart.wsf... but I looked at it and it seems to simply
update any environment variables that changed, which in my custom script
case there are none, and it also copies log files. Neither of these things
seem like a cause for my issue, but I'll try just in case. I have no other
leads at the moment so any help would be very much appreciated.

thanks.

I was confused about this, too. 

After alot of trial and error, I figured it out.

To create the desired partitions, you need to use the task sequencer of the build you wish to modify in MDT 2008.

Under the "New Computer only" group, there is a "Format and Partition Disk" task.  Highlight it.  On the right, it will say "Disk number"   "0".

If you are wanting to partition out the disk 0, go to the "Volume" section, highlight the "OSDisk" and click on the "edit" picture.  You can then modify the OS partition size and use the "Variable" option to name the drive  "C:" as an example.

To add additional drives to Disk 0, click the * next to the edit picture, set your disk size, partition name and Variable letter.  Continue as necessary.

To create/modify additional Disk numbers, highlight the "Format and Partition Disk" task, then cliick on "Add" at the top left of the window, "Disks", "Format and Partition Disk".  Set it to modify Disk Numer 1 and create settings to taste.

Hope that helps!

edit: What i'd like to know is, how do I push files and folders to created partitions using MDT 2008?