I understand this should be a question to ask the company of said external hard drive in which case is Seagate but I figured asking here is ok too:
I have connected my seagate external hard drive to the macbook pro before and each time it worked fine.
Now I try connect to either USB port and it's not recognized.
Any thoughts or advice on how I can fix this?
MacBook Pro, OS X Yosemite (10.10.1)
Questions:
- how is the Seagate formatted?
- did you install any Seagate software that came with it?
- what do you use the Seagate for?
- in ElCapitan, did you do already a "Repair Disk" (FirstAid) on the Seagate?
Would performing first aid on the external hard drive in disk utility delete any information that is already on that hard drive? Sorry to interrupt but I have a similar problem. One of my hard drives has become read only and other can only be seen in disk utility. They are both toshiba external hard drives.
Greetings
Might try shutting down.
Then restarting while holding down P-R-A-M to reset the PRAM- let it chime twice and see if the drive shows up
on the desktop.
Patrick
read only the drive is NTFS
if the mfg makes a ntfs driver you can use that, buy a 3rd party one (paragon or tuxtera) mess with the terminal (I don't suggest this but its possible) or if you don't need the drive for windows, back it up, reformat to mac extended (journaled) and use it to it's fullest on mac.
NFTS drive on a mac only environment is pointless, it's a windows format. TM won't even back it up.
Would performing first aid on the external hard drive in disk utility delete any information that is already on that hard drive?
No.
Why isn't my Macbook Pro recognizing my external hard drive?
