PDA

View Full Version : 64-Bit Kernel




Kajover
Nov 4, 2010, 06:00 PM
Is it possible to run the 64-Bit Kernel on the new Macbook Air?
I tried booting up several times holding 6 and 4, but the kernel is still in 32-Bit (uname -a in the terminal puts out i386).
Is the ULV C2D CPU even capable of x64?



spinnerlys
Nov 4, 2010, 06:01 PM
You could try this in between: http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html

bcaslis
Nov 4, 2010, 06:06 PM
There was a thread about this on the Apple forums. The MBA is capable but won't boot into 64 bit kernel mode for some reason. I've tried a few methods and it won't work. Nobody seems to know why.

Kajover
Nov 4, 2010, 06:09 PM
You could try this in between: http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html

The current air isn't supported so I wouldn't recommend messing around with an app that sets the kernel permanently to x64.


There was a thread about this on the Apple forums. The MBA is capable but won't boot into 64 bit kernel mode for some reason. I've tried a few methods and it won't work. Nobody seems to know why.

missed that somehow... puh.. I thought I was the only one not managing how to "change" the kernel

alust2013
Nov 4, 2010, 06:15 PM
I'm not sure exactly what benefits it would have for you. There are very limited cases in which it is beneficial. Usually it just makes your boot time longer and half the kexts don't work.

mulo
Nov 4, 2010, 06:27 PM
here is a guide on how to force any mac to attempt to be boot 64 bit - basically removes software restrictions.
NOT for the faint hearted!
http://www.osxbook.com/blog/2009/08/31/is-your-machine-good-enough-for-snow-leopard-k64/

KPOM
Nov 4, 2010, 09:56 PM
I'm not sure exactly what benefits it would have for you. There are very limited cases in which it is beneficial. Usually it just makes your boot time longer and half the kexts don't work.

x2. The nice thing about Apple's approach to 64-bit vs. Microsoft's is that the 32-bit kernel means we don't need to get all new drivers (like Windows users need to). It's meant that more applications have been re-written for 64-bit more quickly than on Windows.