This post is about how to download and view the SMSTS.log file when imaging a Virtual Machine. Viewing the SMST.log file helps you troubleshoot Operating System Deployment (OSD) steps when you run into issues.
Saving the SMSTS.log file on a physical machine is not that difficult because you can just attach a USB jump drive to the physical system and copy the log. On a virtual machine you don't have this option because its virtual.
The first thing you need to do is "enable command support" on your PXE boot image ( You need to do this for both physical or virtual machines ).
In the SCCM 2012 console open "Software Library / Operating System / Boot Images". Right click on your PXE boot image and open the "Customization" tab. Check the "Enable Command Support" check box and click on the "Ok" button to save the change.