UI1 never showed the Yes/No buttons, just the text on the Hybrid Core. I had another orbiter I fired up, and the upgrade message was fine in UI2.
MythTV install went ok after the reboot, is it really a 20.2 or something hacked together?
Reboot/Install took a very long time due to having around 30k media files (video, TV, music, etc) and it looked like it re-imported or verified every one on the reboot.
MythTV old guide sources were removed from the setup, but not from the myth database. I had to erase all video sources to clean this up.
1 of 2 schedules downloaded successfully, the 2nd refuses to import. It is set up correctly in Schedules Direct, but after downloading all the data it pops up "0 of 0 shows" to import. Will keep working on this as all my HD tuners are off line now.
Standalone Myth front end on Gentoo, and using the ebuild prior to the 20.2 release still works to connect.