Hi John,
I know nothing about MTS, but I played with it once out of curiosity to get it up and running.? Since I still had the image laying around, I tried running it on Hercules 4.7 running in an Ubuntu 22.04 Hyper-V VM on Windows 10.? MTS appeared to run fine.? It IPLed, I was able to log on as ST01 and do some of the things described at try-mts.com, and I shut it back down.
Hercules was version "Hercules version 4.7.0.10956-SDL-DEV-g1645bfa2", built using hercules-helper on 6/18/2023.? Not bleeding edge, but I don't use that Linux/Hercules all that often.? If necessary, I can upgrade to current and run the test again.
I'll attach the log and config files so you can see what I did.