Skip navigation

Major technical issues?

273 Views 13 Replies Latest reply: Feb 22, 2013 8:18 PM by diablo9333 RSS
diablo9333 Level 1 Level 1 (0 points)
Currently Being Moderated
Feb 22, 2013 3:58 PM

Hi. I have had major issues the past few days.


Here are my technical specs:


iMac Late 2012 model

Intel Core i7 3.1Ghz with Turboboost to 3.9Ghz

1TB Fusion Drive

16 GB Ram

Nvidia GT 650M 512MB


So here are the issues that I have had..

1. I went to use Bootcamp and got "Files could not be moved"

2. I figured out that I needed to repair my system OR reinstall OS X. I learned via the Apple Website that using Recovery Mode you can reinstall OS X without removing your files. I got an installation failed error which messed my system up. I needed to use Safe Mode to recover because at that point I knew there was no going back.

3. At this point I needed to erase my drive to reinstall, I got an installation failed error again(the answer to my issue before was to erase and install cleanly). This made my iMac completely useless.

4. I needed to find an alternative way to install, I decided to use the Macbook to make a bootable installation of Mountain Lion. This didn't work. When I plugged it in to my iMac I got a stop sign(Circle with diagonal line, the same one you see when you download a Rosetta app on Mountain Lion).

5. I decided that it was necessary to install OS X on my USB stick. The method I used was unlocking the little lock on the Get Info panel, and then I unchecked that "ignore ownership"(I believe is what it said). Then it recognized it as a regular hard drive. When I did this and put it into my iMac, I got the stop sign again. At this point because I saw that Disk Utility detected this in recovery mode, I decided to clone the hard drive to the Mac. Of course this failed, as expected, but it was worth a try.

6. I ended up using my external hard drive to fix this problem by installing it on there and then cloning it.


If you read the above, you will notice all of the things I did, which work on any other Mac(including the old Macbook), do not work. This is when it gets bad.

1. If I go to Disk Utility and hit "Verify Disk" it will say I have a problem. Then when I hit "Repair Device" it goes though the fixing and then says


"The disk “Mac Install External ” could not be unmounted"


Afterwards it says to repair the disk. So as you can see. I have some problems here. This problem is still occurring after the reinstall. This is the main thing I am concerned about because I feel it is effecting other areas as well(When I use Bootcamp I get the same error, if I partition using Disk Utility I get an error about resizing....). Any solutions?

OS X Mountain Lion (10.8.2)
  • rkaufmann87 Level 8 Level 8 (40,615 points)
    Currently Being Moderated
    Feb 22, 2013 4:01 PM (in response to diablo9333)

    You may want to post in the Boot Camp forum that is where the Boot Camp and MS Windows gurus hang out.

  • Csound1 Level 7 Level 7 (32,380 points)
    Currently Being Moderated
    Feb 22, 2013 4:01 PM (in response to diablo9333)

    You can't repair the drive you are booted from.

  • Shootist007 Level 6 Level 6 (16,640 points)
    Currently Being Moderated
    Feb 22, 2013 4:10 PM (in response to diablo9333)

    You need to use the Online Internet Recovery system to Reinstall OS X on your Mac, which ever way you want to do it (Over the top of current install or Wiping the drive and doing a Clean install). because your Mac runs a special Version of OS X made just for the newest iMacs with the newest hardware. The standard version you get from the built in Recovery HD does not have the correct driver package for the new hardware in your system


    To Boot the computer from over the internet, Online Internet Recovery, at startup Hold Down the Command+Option+r keys until you see a Spinning Globe in the center of the screen. If you are using the Bluetooth wireless keyboard you would be better off connecting a USB keyboard to use that key combo as sometimes the BT keyboard doesn't get seen soon enough for that key combo to work.

  • Csound1 Level 7 Level 7 (32,380 points)
    Currently Being Moderated
    Feb 22, 2013 6:10 PM (in response to diablo9333)

    Then a trip to the store would be best I think.

  • Shootist007 Level 6 Level 6 (16,640 points)
    Currently Being Moderated
    Feb 22, 2013 6:32 PM (in response to diablo9333)

    Did you use the built in Recovery HD partition? Command+r at startup? If so that Is Not the Online Internet Recovery system.

  • RRFS Level 5 Level 5 (4,425 points)
    Currently Being Moderated
    Feb 22, 2013 6:42 PM (in response to diablo9333)

    The Online Recovery Mode is the only way you will be able to correctly repair your drive if it is repairable. I'm not sure of the OSX build # for the Fusion iMac but it was different from the current version when they released the MacMini Fusion. Your MacBook would not have had the appropriate build of the OS to make the necessary repairs. Just try the Internet Recovery Mode (Command + Shift + R) and do the repair of the Fusion Drive.

  • Shootist007 Level 6 Level 6 (16,640 points)
    Currently Being Moderated
    Feb 22, 2013 7:08 PM (in response to RRFS)

    That is Command+Option(Not Shift)+r


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.