4GB USB key OK for InstallESD.dmg?

Discussion in 'OS X Mountain Lion (10.8)' started by InfiniteLoopy, Jul 24, 2012.

  1. macrumors 6502

    Joined:
    Dec 14, 2010
    #1
    Apologies if this is already in a post somewhere (I didn't find it).
    Basically, is a 4GB USB key big enough to create a bootable USB key with ML's InstallESD.dmg?

    Thanks,
     
  2. macrumors member

    Joined:
    Jun 18, 2011
    #2
    no

    the app is over 4 gig and the install dmg expands to over 4 gig
     
  3. thread starter macrumors 6502

    Joined:
    Dec 14, 2010
    #3
    Ah OK thanks.
    But I can burn it to a 4.7GB DVD, right?
     
  4. macrumors P6

    Peace

    Joined:
    Apr 1, 2005
    Location:
    Space--The ONLY Frontier
    #4
    No. You will need a dual layer DVD.
     
  5. thread starter macrumors 6502

    Joined:
    Dec 14, 2010
    #5
    OK thanks.
    I'm glad I asked!

    ----------

    Is 8GB OK or do I need 16?
    Also, what's the size of the OS, once installed on the hard drive?
     
  6. macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #6
    8GB is enough
     

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