After changing to a new external USB hdd for Time Machine my previous external USB drive used for Time Machine (almost) disappeared. My old drive is a Western Digital, My Passport 25E3 for Mac (1-tb). It is not recognized in:
- Disk Utility
- (About This Mac) --> (Storage)
- **/Volumes$**ls -l
However, I can see the old Time Machine drive here: (About This Mac) --> (System Report) --> (USB) --> (USB 3.0 Bus) -> My Passport 25E3
What can I do to reformat that old Time Machine drive and mount it as just a normal external drive? I've rebooted several times and used different cables.