I thought that was an option you had to select.
Sorry, thought what was an option?
Time Machine can't remove enough stuff to continue backing up. You may have to start a completely new backup.
Permission for TM to remove data.
Andy - TM used to delete older backups when the HDD was full on my system (was running 10.5 when I last had a shortage of space enough that it had to do so). Could that have changed in more recent versions?
Andy - TM used to delete older backups when the HDD was full on my system (was running 10.5 when I last had a shortage of space enough that it had to do so). Could that have changed in more recent versions?
I tried that, same result. Wondering if the external drive is the problem, it's quite old
I'd try erasing it completely and creating a new, empty partition for Time Machine to use. If it is getting on a bit, it might be time for a new drive.