Actually entering the values for a new MBR is easy enough, once you know which keys to press. And OpenBSD’s online help (available by entering a question mark) is clear enough on telling you which keys to press. Figuring out which numbers you want to enter is the hard part! To create a new partition, we have to tell fdisk(8) where the partition starts, where it ends, and what sort of partition it is. Let’s tackle the easy one first: the partition type.
Authors bio is coming up shortly.