7 Replies Latest reply: Dec 4, 2012 7:53 AM by Klaus1
inakatravel Level 1 (0 points)

Hi, I inserted my External Hardrive into my usb port today and got an error saying "The Disk You Inserted Was Not Readable."  I was wondering if someone could walk me through what to do.  I went to do "First Aid" but I am not able to click either the "Verify" or "Repair Disk" buttons. 


What can I do?



MacBook, iOS 5.1.1
  • Klaus1 Level 8 (47,745 points)

    How is the external HD formatted?


    Has it connected OK before?

  • inakatravel Level 1 (0 points)

    I unfortunately don't understand what you mean by HD formatted. 


    But yes it has connected hundreds of times before. 

  • Klaus1 Level 8 (47,745 points)

    External HD = external hard drive.


    Formatted = check via Disk Utility how your external hard disk has been formatted. It should be Mac OS Extended (Journaled).


    If it is not, and you want to re-format it, note that everything on that hard disk will be deleted. If it is, post back.


    When you have tried a new USB cable.

  • inakatravel Level 1 (0 points)

    Picture 4.png


    Here is what my disk utility looks like.  I can see that in the partition area shows that it is unformatted.  I do not want to lose everything.  Is there anything I can do?

  • Klaus1 Level 8 (47,745 points)

    It has to be formatted as Mac OS Extended (Journaled).


    Do you have room on the startup drive for the stuff that is on there now - always assuming you get to it?


    If so, copy the contents (if you are able) to your internal hard drive, format the external, and copy back.


    Of course, if you do not yet have any files on your external HD the problem is over! Just format it!

  • inakatravel Level 1 (0 points)

    I have a lot on here, and I really don't want to lose it.  How do I access it?

  • Klaus1 Level 8 (47,745 points)

    This where we came in!


    How did you get the files on there in the first place?


    Have you tried a different USB cable?