Is There a Way to Install Both Lion and SL?

Discussion in 'Mac OS X Lion (10.7)' started by realph, Jul 13, 2011.

  1. realph macrumors regular

    Joined:
    Sep 21, 2007
    #1
    Like many of you I'm running Snow Leopard at the moment. I just got an SSD for my Mac Pro today, and I wanted to try and install the Lion GM on it to test it out but still keep my existing SL installation on my SATA drive.

    Could I do this and is it possible to switch between the two? I'd like to make a gradual transition you see. And if so how?

    Thanks in advance. Any help is appreciated.
     
  2. Cougarcat macrumors 604

    Joined:
    Sep 19, 2003
    #2
    Sure. Just point the Lion installer to the SSD. Hold option on startup or use startup disk preferences to switch the OS.
     
  3. bk123 macrumors member

    Joined:
    Jul 4, 2011
    #3
    lol thats what I did with the dev version of Lion.

    First goto disk uility and make 2 partisions .
    Open Lion installed and select the second partision...

    Easy :)
     
  4. realph thread starter macrumors regular

    Joined:
    Sep 21, 2007
    #4
    Cheers! I don't have to run Lion on the same drive as SL, right? I can point the installation to my SSD, right?
     
  5. Cougarcat macrumors 604

    Joined:
    Sep 19, 2003
    #5
    Yes.
     
  6. Nuckinfuts macrumors 6502

    Joined:
    Jun 15, 2011
    Location:
    Syracuse, NY
  7. Cougarcat macrumors 604

    Joined:
    Sep 19, 2003
    #7
    You don't need to do any partitioning if you're installing it on another drive.
     
  8. Paulywauly macrumors 6502a

    Paulywauly

    Joined:
    Sep 26, 2009
    Location:
    Durham, UK
    #8
    Thats not exactly true, you can only install OS X on HFS+ partitions. The OP would need to check the current file system in the Disk Utility and repartiton it if it was anything but HFS+ (with a GUID partitioning table)
     
  9. Nuckinfuts macrumors 6502

    Joined:
    Jun 15, 2011
    Location:
    Syracuse, NY
    #9
    Yea partitioning includes reformatting
     
  10. Dhelsdon macrumors 65816

    Dhelsdon

    Joined:
    Feb 5, 2010
    Location:
    Canadian Eh!
    #10
    Don't forget to format your SSD with the GUID thing
     

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