What to do with my "unmounted drive"?

Posted by Taylor Guistwite on Ask Ubuntu See other posts from Ask Ubuntu or by Taylor Guistwite
Published on 2011-11-11T01:52:13Z Indexed on 2011/11/11 18:27 UTC
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unmount

I just recently followed the tutorials on http://www.ubuntu.com/download/ubuntu/download for installing the ubuntu server onto my 1TB Seagate External. I was planning on using this to install it on my macbook and in these instructions it states to preform this line of code

Run diskutil unmountDisk /dev/diskN (replace N with the disk number from the last command; in the previous example, N would be 2)

Now my HD prompts "The disk you inserted was not readable by this computer". Would I just run diskutil mountDisk /dev/diskN in order to be able to access all my files again?

here is a screenshot to the instructions i followed

http://i17.photobucket.com/albums/b97/hello_screamo/Screenshot2011-11-11at113914AM.png

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