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Old 12-01-2010, 10:04 AM
HD2 HD2 is offline
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Join Date: Apr 2004
Posts: 928
Default Re: PT 7.3.1 to PT 9---OSX 10.4.11 to Snow Lepoard

Mac Pro's can have any number of Operating systems installed on different drive. There are 4 internal slots so your best bet is to buy a couple of few drives (they are cheap) and fill those slots. Load your new OS on the second drive then you can use either/or as your OS. As someone said you just select your boot drive in the system preferences. Once running if you wish to switch just go into your prefs and select the other drive as your start up and re-boot. Then use the other 2 drives for all your PT sessions. Do not use a boot drive for your sessions.
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