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boot disk

  1. R

    Mac Pro 5,1 won't boot - stuck on spinner - need help

    Hello folks, A bit of a long-winded explanation here as background to my troubles of today. Old 2007 Mac Pro (8 core) running OS X 10.7.5 (Lion, I believe) died. Thought it was a hard drive issue at first so I replaced that Seagate drive with new 3TB HGST model and Carbon Copy Cloned the...
    • RayZorFIst
    • Thread
    • boot disk boot error boot fail
    • Replies: 3
    • Forum: Mac Pro
  2. F

    El Capitan Boot disk not showing!

    Hi Everyone, I've created 2 different versions of an El Capitan boot drive using Terminal and on Apples advice Diskmaker X (1 on an 8gb usb stick and another on an internal HD) however neither of which will work for me! I've tried choosing system preferences but neither boot disk will show up...
  3. M

    Universal boot disk

    Is it possible to create an external boot disk which can be used to boot any Mac, in my case Mac Mini '12, Mac Pro 5,1, Macbook Pro '15, MacBook '09.
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