> I was under the impression that there can only be 4 partitions in a DOS
> partition table.  But I could be wrong.

There is no real technical reason for this limit - DOS just uses it that way.
In fact there is plenty of unused space in the partition block when you use
the original DOS boot code. You could layout the partition table to contain
8 partitions (corresponding to the disklabel partitions) and have upto 4 of
them visible to DOS.

I'm not sure if I like this idea. We would have to provide our own boot selector
code at least..


Martin