Backup not inherited — and I need to access it
I have an old external drive that, when upgrading my MacBook Air, I accidentally clicked "no" when it asked if I wanted to inherit the backups. Is there any way to undo that mistake? I have even been thinking of renting another Mac to inherit them and recover the most important items, though that seems rather silly. If I did that, I assume I would I have to use the same Apple ID. Isn't that the case? There must be a better way. Any suggestions much appreciated.