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MacBook Pro 15" - New internal Hard Drive?

5123 Views 24 Replies Latest reply: Aug 31, 2013 9:03 PM by Ayush741994 RSS
  • OGELTHORPE Level 7 Level 7 (22,605 points)
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    Jan 27, 2013 5:01 AM (in response to bobmermans)

    The Mt. Lion OS in the App cannot be corrupted since everyone downloads from there.  If you are having problems with it, it points more to some difficulty in the your download chain such as a poor Internet connection.  When you download it, make certain the you either have the MBP hardwired to the Internet or are using a good WiFi connection. 


    When I initially downloaded it. I used a 32 GB USB thumb drive, but any HDD will do.  The drive must be at least 12 GB in size.  For the final installation USB thumb drive, it must be 8 GB or larger (I use an 8 GB USB thumb drive).


    For reasons unknown to me, my prior link does not work.  try this instead:




  • OGELTHORPE Level 7 Level 7 (22,605 points)
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    Jan 27, 2013 11:52 AM (in response to bobmermans)

    Are you following these directions?



    As soon as you get the screen with 4 options, select Disk Utility.  Click on ERASE and format the HDD to 'Mac OS Extended (Journaled)'.   Then proceed with the install.


    Note: I assume that your new HDD has no data on it.  It will be totally erased.


    If this fails again, then you will have to go back to the Apple store.  The 'do not have enough time' excuse is bogus.  It does not take more tha  5 minutes to start the download and then while the OS is downloaded and installed, they can attend to other customers.  For different reasons I had Mt. Lion installed at the Apple store.  Given any resistance, ask for a manager.


    Incidentally, just prior to where the MBP restarts on the install is where one 'pulls the plug' in order to make a USB installation thumb drive.


    Let me know how you do.



  • OGELTHORPE Level 7 Level 7 (22,605 points)
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    Jan 27, 2013 1:28 PM (in response to bobmermans)

    I know it cannot be the Mt. Lion application.  There have been thousands upon thousands of downloads.  I had it done at the Apple store and I downloaded it to make my USB thumb drive.  I am pleased that at least you have a working MBP with Lion.  That means that we are not in a crisis situation.


    At this point I am grasping at straws and wondering if you have any third party applications that may be inhibiting the installation?  In my prior response I was trying to get you to try the install on a completely empty disk.  That was the point of Disk Utility>Erase.  I suppose you might try that on an external HDD if you have time to spare. 


    At this point I think that the issue can best be resolved by a visit to a bonafide Apple store genius bar.  Maybe someone will read what has now become our collaborative Russian novel and offer a solution.  I cannot come up with another options at the present.



  • OGELTHORPE Level 7 Level 7 (22,605 points)
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    Jan 27, 2013 3:31 PM (in response to bobmermans)

    I can accept that as an explanation.  Obviously when I had Mt. Lion installed by the Apple store, they have an excellent Wi Fi connection.  When I downloaded Mt. Lion I went to a site known to have a good Wi Fi connection and I had no problems.  I have a totally wireless Internet connection, so it can be erratic at at times.


    Maybe I am too 'old school' and prefer to have a physical copy of an OS.  I encourage you to make a USB thumb drive for those situations when the Internet or Apple servers are not available.  It may not be essential for you, but as stated, when the Internet connection is not 100% reliable, it is a comfort to know I have something to fall back on to.


    It's been fun and the best of luck.



  • OGELTHORPE Level 7 Level 7 (22,605 points)
    Currently Being Moderated
    Jan 30, 2013 3:31 AM (in response to bobmermans)

    Well now, you have put a smile on my face.  Keep good care of the USB thumb drives.


    Note that I had Mt. Lion installed on my 'working' MBP but I had to revert to Lion in order to run a 32 bit application which Mt. lion will not run.  The point is that if you should encounter such a situation, the Lion USB drive can be installed on a partition so you are not left out in the cold.


    Again I wish you the best.



  • Ayush741994 Level 1 Level 1 (0 points)
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    Aug 31, 2013 9:03 PM (in response to bobmermans)

    Yesterday When i switched on my mac . Just after pressing the power button i also pressed the command + s button then a terminal appeared in the screen and then my mac was switched off automatically . Now when ever I switch on my mac a screen pops up showing my account and a guest user account and when i try to open my account , after typing the password for my account and press enter , again the terminal screen pops up with some things written on it . This screen pops up for 3 to 4 seconds and then my mac gets restarted every time,  i dont know what to do now , please help me out .  .

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