I am doing my migration in a lab environment I made a VM of the main dc now. So far I have made two other VM's for server 2012 R2. I went ahead and domain joined server 1 and promoted it to DC and made sure AD moved over and synced I then moved over FSMO. Next I'm getting ready to migrate exchange off of the old sbs server. This I have never done yet. I was going to Domain join it, install exchange 2016 and then use the Microsoft migration docs. Are these the proper steps so far? also are there any roles I need to install on server 2 before I install Exchange 2016?