Working with RTE IV BI fired up the machine to get more experience with the operating system. One of the investigations I undertook was listing the logical units (LUs) to understand how these worked in RTE.
|First page of LU list|
|Second page of LU list|
The last step was to run the SWTCH program which loads the new system image onto a chosen disk image. In my case I planned to just update in place, to better match the hardware I expect to use. While it appeared to work and comes up, I discovered that I couldn't run the FTN4 program (Fortran compiler front end).
I have also been fighting with the simh based HP2100 emulator, learning how to force it to do what I want. Discovered, for example, that when I was running the SWTCH command, it insisted that the disk FORMAT switch be on, apparently something that allows for a format operation. That needed a new simulator setting and rerun.