I do believe that crossing this hard coded 8G limit without changing in other places would render your system unbootable. /bsd has to be between those limits on your / partition, read the FAQ, its mentioned there. The limit used to be lesser like 1G, I think. They increased it sometime in the late 3.X or early 4.X series. You can check the cvs log for cmd.c and see when it changed.
Thanks > I want to change that to 9320 cylinders with 224 heads (32*7) and 56 > sectors (8*7) in fdisk interactive mode (disk). However, I cannot set the > right cylinder size, since fdisk says that the "BIOS Cylinders" must be > between 1-1024. > > The reason is that src/sbin/fdisk/cmd.c has "BIOS Cylinders" hardcoded > (maxcyl = 1024, roughly 8G then). Is there any necessity for limiting this > value? If not, could we raise it to something more contemporary, like 2^16 > or more (I'd prepare a diff if I had a suitable machine at hand right > now)?