I recall reading somewhere that you cannot migrate AD from a 2003 to a 2012 OS environment, that you must first upgrade to 2008 and then 2012. I'm not sure if this is correct. Can anyone please clarify? To be more specific we have 2, 2003 domain controllers and we want to buy 2 new servers to install 2012 on and then migrate the roles over. I just want to know if we have to go through installing 2008 first and migrating AD from 2003 and then upgrading the OS to 2012 from 2008.