Cannot Reinstall OS X After Wiping MacBook Pro

Discussion in 'MacBook Pro' started by admann96, Nov 27, 2016.

  1. admann96, Nov 27, 2016
    Last edited: Nov 27, 2016

    admann96 macrumors newbie

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    Nov 27, 2016
    #1
    I recently tried to wipe my Late-2011 MacBook Pro so I could sell it. After removing the files I needed I followed Apples directions to erase the data from the MacHD using Mac OS X Utility. Once the hard drive was deleted I continued to the "reinstall OS X" portion of the process. After waiting about 15 minutes for the download I got the unspecified error "An error occurred while preparing the installation. Try running this application again." After researching this problem I tried changing the date using terminal, resetting the NVRAM, and I even made a bootable version of OS X Sierra, all of which have been unsuccessful. I am not sure what else to do and I do not not want to pay Best Buy $100. Any ideas would be much appreciated.


    FIX: I partitioned the main drive into two equal sections and ran the OS X installer on the second half of the partition and it worked. Hope this helps others!
     
  2. BasicGreatGuy Contributor

    BasicGreatGuy

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    #2
    Did you try installing from a USB flash drive?
     
  3. admann96 thread starter macrumors newbie

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    #3
  4. BasicGreatGuy Contributor

    BasicGreatGuy

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    #4
  5. admann96 thread starter macrumors newbie

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    #5
    The apple logo appeared with a spinning dial, and then a grey "no entry" sign replaced the apple logo and the dial continuously spins.
    --- Post Merged, Nov 27, 2016 ---
    After the OS X download completed^^^
     
  6. BasicGreatGuy Contributor

    BasicGreatGuy

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    #6
    That sounds like the system isn't recognizing your hard drive.
     
  7. admann96 thread starter macrumors newbie

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    #7
    Is there anything I can do?
     
  8. BasicGreatGuy Contributor

    BasicGreatGuy

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    #8
    Take a look at the Apple help link on that subject. Hopefully, you can get it going.

    When you wiped the drive in disk utilities, which portion did you wipe, the top portion or the bottom one that usually says Macintosh HD by default? And are you sure the format is extended journal?
     
  9. admann96 thread starter macrumors newbie

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    Nov 27, 2016
    #9

    I wiped the one that says Macintosh HD.
    --- Post Merged, Nov 27, 2016 ---
    Also, each time I erase the Mac HD it leaves almost half a gig still showing as used. Is it a problem that it never fully erases?
     

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