:: Being able to say "Here's a 600MB Linux partition, lets put /, swap and
:: /usr in there" is what I'm curious about doing.
: You could compile a kernel with CONFIG_BLK_DEV_LOOP and use the loop
: driver...
Maybe, but that would be inefficient, and probably not stable enough.
However, you can do this today by splitting this 600MB DOS-style
partition into BSD-type slices.
Thus, this is a user-space matter.