Latest Catalina update downloaded, installed, won’t finish restarting
Left it restarting overnight. Then shut it off and tried again a few times, once for 24 hours.
White Apple appears and status bar progresses eventually to what looks like the end but never actually finishes.
Hoped to try restarting in safe mode but wireless keyboard appears to have unpaired. I replaced the batteries and pressed the power button; after green a moment, it double-blinks for a while but never activates (pressing caps lock doesn’t cause the key’s light to go on).
iMac 27″, macOS 10.15