I used Migration Assistant to move my data from one MacBook Pro to another. On the new MacBook Pro, I got the prompt asking if I'd like to inherit the old backup. Maybe because I'd renamed the new laptop to the name the old one had or because there was an interrupted backup, it failed. Now I'd like to still use the old backup but am having problems doing so manually. I've tried this:
Turns out I had the same Time Capsule filesystem mounted on another computer, and apparently only one can be read-write at a time. When I unmounted it from the other computer, I was able to run the "inheritbackup" command just fine.