Help with Lion Diskmaker

Discussion in 'OS X Mountain Lion (10.8)' started by Damian83, Jul 26, 2012.

  1. Damian83 macrumors member

    Joined:
    Jul 20, 2011
    #1
    hi! i want to create a bootable drive with ML, but it seems it accepts only dvd and pen drives. i want to do it with an external hd because i dont have a 8gb pen drive. is there a way to "convert" an usb hdd to a pen drive??? in fact, why those two are considered "different" from osx??
     
  2. eagandale4114 macrumors 65816

    eagandale4114

    Joined:
    May 20, 2011
    #2
    Do it manually.
    Step 1. Partition your HDD so that a partition has 8 gigs of space. Name it Mountain Lion Boot Drive for now.

    [​IMG]

    Then follow the DIY instructions here.

    The app will not partition an external drive for you. That is why you had issues.
     
  3. Damian83 thread starter macrumors member

    Joined:
    Jul 20, 2011
    #3
    thanks! i did it! however i dont understand why the file and the bootable disk is 4,37gb. why theres need 8gb?????
     
  4. iMacFarlane macrumors 65816

    iMacFarlane

    Joined:
    Apr 5, 2012
    Location:
    Adrift in a sea of possibilities
    #4
    Because 4,37gb is greater than 4gb. Most things digital increment in factors of 2. I've personnally never seen a 5gb, 6gb, or even 7gb USB stick. So . . . the smallest USB drive that can accommodate the OS is 8gb.
     
  5. Damian83 thread starter macrumors member

    Joined:
    Jul 20, 2011
    #5
    yes sorry! i confused 4,37 with dvd capacity :p
     
  6. iMacFarlane macrumors 65816

    iMacFarlane

    Joined:
    Apr 5, 2012
    Location:
    Adrift in a sea of possibilities
    #6
    Ah! Gotcha.

    Well, I'm definitely going the USB route, as all the guides say the DVD install is painfully slow.
     

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