After a long wait for the dust to settle I finally upgraded from High Sierra to Big Sur.
In the past, I once successfully booted from a CCC clone, and when I booted again from the internal drive my TimeMachine backups were not accessible anymore. TimeMachine seems to have regarded the Mac as a new machine.
I couldn’t find any clues how to continue using the TM backups and had to start with a new TM history.
Now with having upgraded to Big Sur I am afraid to connect the TM backup drive, because I want to keep the incremental backups.
- Are these backups made in High Sierra compatible with Big Sur?
- If so, how can I avoid losing access to the old backups?
I have spent plenty of time searching the init and read through Take Control Books, but couldn’t find anything. Maybe I overlooked something somewhere ?
What would you do?