A friend of mine just purchased a current 17' Macbook Pro (Core i5 2.53GHz, Mac OSX 10.6.4). He also purchased an Mbox 2 with Pro Tools LE 8, with the intent of using it with the new Macbook Pro. I came by his place to help him install the software and get up and running.

Install DVD for Apple's Snow Leopard operating system.Version 10.62Z691-6558-A. Mac OS X Snow Leopard Install DVD. Publication date 2009. Topics snow leopard. This Lion Install iso-file contains: - 760.080.920 Bytes for optional installer packages. The reason this is so confusing is that Mac OS X is the only OS that can run most of the 32-bit kernel in compatibility mode of long mode while running native 64-bit apps on top (in 64-bit mode of course). As a result, Mac OS X Snow Leopard actually has three modes.

I instantly ran into problems upon trying to boot Pro Tools. While loading the included plugins, I received error after error.

I have yet to head over to Digidesign's website and do a search for the particular error code but I already have a good idea as to where the problem lies. My guess was that it was a 64 Bit/32 Bit compatibility issue. I launched Activity Monitor and sure enough, the Finder was listed as running in 64 Bit mode. Pro Tools is not 64 Bit compatible, I know this for a fact. I have heard of people forcing their Mac to boot into the 64 Bit Snow Leopard kernel. It seems like this machine does it by default. My answer was to force it to boot into 32 Bit mode.

I followed the steps found here to try and force the machine to boot with the 32 Bit kernel: However, I could not get the Mac to boot into 32 Bit mode. Holding '3' and '2' during the boot sequence didn't do it. Executing the sudo command from the Terminal didn't do it.

So, the question is: Why can I not force this machine to boot 32 Bit? All of the drivers and kernel extensions installed with Pro Tools are 32 Bit. Nothing works right now. Is it possible that the new Macbook Pros only run in 64 Bit mode?

Mike Ayotte wrote: A friend of mine just purchased a current 17' Macbook Pro (Core i5 2.53GHz, Mac OSX 10.6.4). The 64 Bit Snow Leopard kernel. It seems like this machine does it by default. Mike Ayotte- You can verify your suspicions by looking at the Sys Profiler. Apple() --> About this Mac --> More info --> Software *System Software Overview:* +64-bit Kernel and Extensions+: No if it is boot into 32-bit, Yes if it is booted 64-bit I do not believe any Macboook/MacBookPro is set to default into 64-bit boot.

Some Mac Pro's are shipping 64-bit by default, you can read more here: hope this helps Message was edited by: leroydouglas. Apple Footer • This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums.

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