How to reinstall the ML on a iMac

Discussion in 'iMac' started by Serban, Apr 19, 2013.

  1. macrumors 68040

    Joined:
    Jan 8, 2013
    #1
    I have an iMac late 2012 with wireless keyboard. After restart i hold the "alt" button and i get the MacHDD only option. Shouldn't been there an Recovery partition as well?

    How can i do the reinstall without the any external hdd or flash drives or buy an external dvd drive?
     
  2. macrumors G5

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #2
    Hold down the "OPTION" key to get to DU.


    Hold down the "R" key for internet recovery.
     
  3. justperry, Apr 19, 2013
    Last edited: Apr 19, 2013

    macrumors 603

    justperry

    #3
    Try with internet recovery, hold Command-Option-R at startup, this is different from recovery and is built into the iMac's firmware, should always work.

    ----------

    Option does not bring you into DU, it will get you into the boot manager, and R is also wrong, it is Command-R or Command-Option-R, first is Recovery, second is Internet Recovery.

    The difference is that one is built into firmware and the other resides on an invisible partition on the HD/SSD.


    __________________________


    Edit:
    OP, the alt key is called the Option key in OS X, if you can't get into normal Recovery try the internet Recovery, this should always work, but as with recovery you need an active internet connection.
    If you don't see the Recovery Option after you held the Option key at startup this means or your Recovery partition is damaged or it is not there due to an earlier wipe of the HD.
     
  4. thread starter macrumors 68040

    Joined:
    Jan 8, 2013
    #4
    So what is the option for my case...keep in mind i only have thee wireless keyboard and i think after i power on my imac it takes a while for my keyboard to connect
     
  5. macrumors 603

    justperry

    #5
    It does work if you press the power button on the keyboard just shortly before you press the power button on the Mac.
     
  6. macrumors G5

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #6
    oops! Forgot CMD....Not awake yet.:)
     
  7. macrumors 603

    justperry

    #7
    No worries.:)
     
  8. thread starter macrumors 68040

    Joined:
    Jan 8, 2013
    #8
    I don't have power button on my keyboard
     
  9. macrumors 603

    justperry

    #9
    Thought you had the Apple keyboard, connect a USB keyboard.
     
  10. thread starter macrumors 68040

    Joined:
    Jan 8, 2013
    #10
    I only have the apple wireless keyboard that came with the imac
     
  11. macrumors 603

    justperry

    #11
    Then there should be a power button, it is on the right hand side, the left rounded side contains the batteries, the right rounded part has the power button.

    [​IMG]
     
  12. thread starter macrumors 68040

    Joined:
    Jan 8, 2013
    #12
    http://www.google.com/imgres?imgurl...9xUeuVBMWWtQa784DQBw&ved=0CEIQ9QEwAg&dur=2071

    ----------

    i understand now yes. But i never power off my keyboard, i think when my imac si power off, the keyboard is become idle. So you suggest that i press one time the power button when i start the imac?
     
  13. macrumors 603

    justperry

    #13
    And I included an image as well in my last post!
    And, in your link to google images there is one as well which shows you.

    ----------

    Yes, it is not really a power button, you can't switch off the keyboard AFAIL.
     
  14. macrumors 6502

    Joined:
    Jun 20, 2010
    Location:
    United States
    #14
    Thanks for posting this!
     
  15. macrumors member

    Joined:
    Mar 9, 2013
    Location:
    CT, USA
    #15
    Hold command + R once at boot and its gonna give you the internet recovery!
     

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