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Q: Is it possible to boot a Mac Pro 1.1 in 64 bit?
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Jun 5, 2012 12:03 AMby X423424X,No. That machine only has a 32-bit kernel.
Mac OS X v10.6: Macs that use the 64-bit kernel
In terminal type,
uname -a
If the output shows RELEASE_i386 you have a 32-bit kernel and cannot boot in 64-bit mode.
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Jun 5, 2012 12:59 AMby X423424X,I believe that 64-bit Logic Pro will run in 64-bit mode even though you have a 32-bit kernel. Just because the kernel boots and runs in 32-bit mode doesn't change the physical architecture of your processor. So the 64-bit limits apply to a 64-bit running application, not 32-bit limits. Of course the application itself may impose limits of its own which are possibly smaller.
