03 February 2012
MDT 2010 -- Failure (ERR):68: Ran diskpart to change drive letter - Device unavailablePosted By: Mick Pletcher - 11:50 AM
This error, which occurs in both MDT 2010 and MDT 2012, is caused when the USB thumb drive is left in the USB port after the initial WinPE is loaded and the imaging process is initiated. Simply removing the USB thumb drive after WinPE loads corrects this error. Once the Task sequence wizard is loaded, everything has been loaded into memory from the USB, hence it can be removed. In the end, either ignore this error, or remove the thumb drive after WinPE loads.
This error is caused by the fact that the USB thumb drive is assigned the drive letter c: as the WinPE loads. During the initial Litetouch.wsf processes, it is checking to make sure c: is available for the drive letter where the OS will be laid down. If it is not available, the Litetouch.wsf will try and reassign a new drive letter to the thumb drive. It is at this point where the error occurs. It is an invalid error because when the system reboots, the drive letter is reassigned and c: is assigned to the primary HDD where the image is being laid down.
About Mick PletcherMick Pletcher
My blog is here to help solve issues I have encountered and solved, publish scripts I have written, and educate others in understanding areas that are not well covered