Linked by moondevil on Wed 11th Jul 2012 22:49 UTC
Mac OS X Ars Technica is reporting that certain 64bit Mac models won't be able to run Mountain Lion. The problem is the graphic card drivers; these are still 32bit, and Apple is unwilling to update them to 64bit. A 64bit kernel can't load 32bit drivers, so that's that. Apple has a list of supported models on their Mountain Lion upgrade page, so you can easily check if your computer is capable of running Mountain Lion.
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RE[5]: No biggie
by Neolander on Fri 13th Jul 2012 10:14 UTC in reply to "RE[4]: No biggie"
Neolander
Member since:
2010-03-08

My own impression from reading his blog was that most of current UEFI implementations have very serious bugs, but that no one but Apple has so far completely broken basic functionality such as OS detection ("You can can boot any EFI-compliant OS as long as it's Mac OS X") or the whole notion of boot-time services ("Here, do everything you want with that chunk of RAM, it's free for use after OS boot. The network chip may randomly decide to use it as a buffer from time to time though."). Seems like something done on purpose to me...

Edited 2012-07-13 10:20 UTC

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