Can you run OSX from a portable HDD?

Discussion in 'macOS' started by Coflash, Sep 12, 2013.

  1. Coflash macrumors newbie

    Joined:
    Jul 13, 2013
    #1
    Hello

    I'm currently using Windows/Linux one of my Macbooks (testing)

    Is it possible to also boot OSX on it from an external drive? Don't care if it's slow

    Thanks
     
  2. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
    Location:
    5045 feet above sea level
    #2
    yes, just needs to be on a partition that is hfs
     
  3. SweeneyD24 macrumors regular

    SweeneyD24

    Joined:
    Feb 16, 2011
    Location:
    Mauritius
  4. Fishrrman macrumors G4

    Joined:
    Feb 20, 2009
    #5
    Yes, as others above have said.

    I suggest you initialize your external drive HFS+ (use Disk Utility).

    Then, use CarbonCopyCloner (free to download and use for 30 days) to "clone" the contents of your internal drive to the external. (Note: I believe CCC copies _only_ Mac-related files, and cannot clone the Windows partition).

    The result should be a bootable external drive that has the exact contents of [the Mac portion of] your internal drive.

    CCC can also clone the recovery partition, as well.
     
  5. Madd the Sane macrumors 6502

    Madd the Sane

    Joined:
    Nov 8, 2010
    Location:
    Utah
    #6
    Also, the partition scheme MUST be GUID. The other options might be bootable, but GUID creates a small partition at the beginning that EFI (the Mac BIOS) uses.
     

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