When not using the latest version of bootable media and the system is not partitioned SCCM is meant to create a temporary partition to stage the correct boot wim. What actually happens is it just creates 1 big NTFS partition.
What actually happens is it just creates 1 big NTFS partition.
Then it checks the for a system partition and bombs out.
http://technet.microsoft.com/en-au/library/hh824839.aspx states that the System partition must be formatted FAT32, SCCM is formatting it NTFS so it never gets recognised as a system partition.
For UEFI the EFI & MSR volume should also be created to make system partition readable and bootable.
I created a hotfix request, will update this post if anything comes of it.