Wow, cool...
So if you have a PowerUP board CD0: appears above/below CC0: DF0: and DH0: ?
Just one thought on the cold-reboot problem you have. When you hold '2' to switch off the '060 on the Blizzard 1260 you can hold Ctrl-A-A for 15 seconds to get back the '060.
I wonder if by giving the "3 finger salute" an extra few seconds your CD0: will re-initialise?
I've often wondered what can appear in that little scroll bar in the early startup menu. Does DF1: DF2: DF3: show up with different priorities and what about USB?
Does the Expansions sub-menu only show devices connected to the Zorro-2 trapdoor connector or would a clockport device show up?
Anyway, glad it's working now!
:-D