I am trying to install windows server 2008 unattended using unattend.xml.I am doing this in a virtual machine with three drives(c,d and e).Before calling the setup.exe , i create three partitions using diskpart and format(NTFS). Once the installation starts i get the error:"Setup was unable to create a new system partition or locate an existing system partition. See the Setup log files for more information."
The setupact.log in c:\windows\pather says that none of the disk is computers boot disk.
I am using diskpart to create partion and assign letter.