Running 10.8 on Flash drive on system with 10.11

Discussion in 'OS X Mountain Lion (10.8)' started by nateo200, Oct 20, 2015.

  1. nateo200 macrumors 68030

    nateo200

    Joined:
    Feb 4, 2009
    Location:
    Northern District NY
    #1
    Can I run 10.8 on Flash drive on system with 10.11? I have an early 2013 15" rMBP and while I am enjoying 10.11 I was previously running 10.8.5 because there was some software that was not compatible with anything over 10.8.5. I'd like to install 10.8 onto a 32GB USB 3.0 flash drive and put some of the bare bones software. In fact I'd prefer to install 10.6 but I understand my Mac can't run an OS it didn't come installed with. I suppose if I can't do this I will have to buy a used Mac Mini or MacBook Air from 2011~ or so but its somewhat of a bummer that I loose support for certain software when I update to a new OS X....
     
  2. Nermal Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    New Zealand
    #2
    Should be fine; I've run 10.6 from a USB drive without issues (it was a hard drive rather than flash, but the principle is the same).
     
  3. nateo200 thread starter macrumors 68030

    nateo200

    Joined:
    Feb 4, 2009
    Location:
    Northern District NY
    #3
    So I just have to find a 10.8 installer somewhere now? Then select the flash drive?
     
  4. Nermal Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    New Zealand

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