Problem description: because there is no eject mobile hard disk, it is pulled out. Cause again insert hard disk, computer also cannot recognize.

Procedure: 1. Check the disk information

That’s my hard drive in circles.

2. Mount the hard disk

sudo diskutil mount /dev/disk2s1
Copy the code

Then what you need to enter is your password (power-on password)

As you can see, the mount is successful.