> What seems a little counter intuitive to me is: I would see sd0 as a > shortcut of /dev/sd0 for fdisk, but "fdisk /dev/sd0" does not work.
It isn't. `sd0' is actually a shortcut for `/dev/rsd0c'; there is no /dev/sd0 at all. (If you want to know more about this particular name expansion, look at opendev(3) in libutil). Miod