To boot the RL01K “RSTS/E v7.0” disk, start a PDP-11/70 with an RL11 Disk Controller, select the “RSTS/E v7.0” disk from the list of disks available for drive “RL0”, click Load, and wait for the message:
Mounted disk "RSTS/E v7.0" in drive RL0
Then start the machine (click Run) and make sure the following prompt has been displayed:
PDP-11 MONITOR V1.0 BOOT>
At the prompt, type “BOOT RL0”.