USB boot drive question

Discussion in 'MacBook Pro' started by tomf, Feb 9, 2015.

  1. tomf macrumors regular

    Nov 11, 2009

    I'm changing my hard drive in my late 2011 Mbp to a SSD. I'm also taking the dvd drive out and putting a new hdd in place.

    Currently I'm on OS X 10.8 but I want to install OS X 9.

    I've read some guides on how to make a USB boot disk, that seems ok, but my question is, when i install the new SSD the disk will be totally blank, so how do I go about installing osx9 onto the SSD?
    Is it a case of just putting in the USB drive, powering up and the map sees the installer on the USB? Or?......

    Do I need to hold any keys down when I boot it up? And do I need to format the SSD drive first?

    Thanks for any help and advice
  2. hallux macrumors 68030


    Apr 25, 2012
    Hold the Option key during boot and it will give you a bootable device list. Provided the drive built correctly and you have it plugged in it should show in the list.

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