OK, next load of questions. I've been trying to create a "virgin" system from the install media I have. I have so far successfully sysgenned and built RT11 v5.0, and installed it on an RL02. Great. However, the version that boots off one of the hard disks built into the PDP allows me to access four partitions in total - DU0: to DU3: - but my own version only has DU0: (same as normal) and DU1: (same as DU3: in the version of RT11 installed on the hard disk). If I say "SET DU2: disk=0, part=1" then I can see my "old" DU1: as DU2:, and so on. What do I need to change to get it to come up like this? It doesn't appear to be a load of "SET" commands in the STARTS.COM file. Gordon.