You generally have to have a hardware controller to create the RAID5 before doing the OS install. I don't know of a way to build the RAID while doing an install.Hello I am working on building a server for a friend. How ever he wants a raid 5 with his OS on the raid. He doesn't have a raid controllers. So I am tryingbto figure out can you set up a Raid 5 while you install 2016.