User notes for RSTS/E 9.x system generation
Generating a system on version 9 of the RSTS/E operating system is much, MUCH easier than on the earlier releases. This is largely because of all the scripts being rewritten in DCL, and with that change, DEC has included more comprehensive and powerful install scripts.
As of this writing (May 2007) there are several methods of generating a RSTS/E system, depending on what hardware you have available.
As a general rule, it is not recommended that you generate a RSTS v9 system with under 128KiW of MOS or core memory, and less than 20 MiB of contiguous mass storage. If you are using an emulator, this is not a problem as your machine likely has a hundred times the maximum amount of memory addressable by any PDP-11. This is also a suggested method if you are generating a system for real PDP-11 hardware as it is generally faster and does not require physical distribution media(images will do just fine).