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I know, the answer should be 64, as Apple dropped support even for their early 64 bit models BUT:

Nathan-der-Graue:~ max$ uname -p

while on the other hand: enter image description here

Could someone please explain this to me?

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up vote 6 down vote accepted


You want uname -m rather than uname -p to determine the bitness of the kernel.

$ uname -m
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