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best way for OS reinstall

173 Views 6 Replies Latest reply: Jan 30, 2013 1:23 PM by Kappy RSS
Alex in devon Level 1 Level 1 (0 points)
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Jan 30, 2013 12:43 PM

Hi

 

My wife is taking over my MacBook Pro and i am having a new Retina MBP.   

 

I was intending to go the long route and install all my software from scratch then copy the data across on my machine, and then do a clean reinstall on the old machine for my wife.

 

Can someone advise me of the best way to do the clean install.  

 

Thanks

  • Kappy Level 10 Level 10 (221,015 points)
    Currently Being Moderated
    Jan 30, 2013 12:46 PM (in response to Alex in devon)

    And can you advise us what version of OS X you plan to install on the machine?

  • Baby Boomer (USofA) Level 9 Level 9 (55,540 points)
    Currently Being Moderated
    Jan 30, 2013 12:48 PM (in response to Alex in devon)

    Since you make no mention of which OS is currently installed on your old MBP, read the threads over in the "More Like This" column over here.----------->

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

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  • Kappy Level 10 Level 10 (221,015 points)
    Currently Being Moderated
    Jan 30, 2013 1:06 PM (in response to Alex in devon)

    Do you have the Mountain Lion installer application? If not, do you have an emergency USB flash drive with your Recovery HD on it? Or do you have a recent Time Machine backup made since you installed Mountain Lion on your computer. Where will Mountain Lion come from that will be installed onto the older computer? Does the older computer already have Mountain Lion installed, and does it have a Recovery HD partition?

  • Kappy Level 10 Level 10 (221,015 points)
    Currently Being Moderated
    Jan 30, 2013 1:23 PM (in response to Alex in devon)

    As long as you have your own installer that simplifies matters quite a bit. But it's simpler to do this as long as a Recovery HD is on the drive (yes, it's hidden.)

     

    Install or Reinstall Lion/Mountain Lion from Scratch

     

    Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.

     

    Boot to the Recovery HD:

     

    Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

     

    Erase the hard drive:

     

      1. Select Disk Utility from the main menu and click on the Continue button.

     

      2. After DU loads select your startup volume (usually Macintosh HD) from the

          left side list. Click on the Erase tab in the DU main window.

     

      3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on

            the Security button and set the Zero Data option to one-pass. Click on

          the Erase button and wait until the process has completed.

     

      4. Quit DU and return to the main menu.

     

    Reinstall Lion: Select Reinstall Lion/Mountain Lion and click on the Install button.

     

    Note: You will need an active Internet connection. I suggest using Ethernet if possible

                because it is three times faster than wireless.

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