MacBook Pro could not see local drive.

我的问题

Macbook could not find ( or even see ) local hard drive. Drive was pulled and tested with success. Placed drive in external drive sled and booted from. Drive was 100% OK. The cable from the logic board to the hard drive was bad.

我的修理方法

Replaced the cable. It was easy.

我的建议

Never assume the drive is bad.