I tried it on a Pi Zero; I ended up giving up. **too** slow, couldn't tell if it was stuck or just slow.
The slow part was getting the SMP volumes built. I think if you followed Jay's instructions to the point where you had your starter system and SMP volumes built, you could move over to a Pi and be ok (and once you have those, you never need to build them again)...
You may have a fighting chance on a Pi 3 or 4.
One thing that was killing me was that I had compressed DASD, which was ****really**** slow on a Pi Zero when doing a lot of writes.
