Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I just got a Mac and I have Snow Leopard installed. I checked my arch type and it says i386.

How is it possible? 10.6 is 64-bit, right?

share|improve this question

1 Answer 1

up vote 1 down vote accepted

By default Mac OS X still starts up using a 32-bit kernel. If your computer supports the 64-bit kernel, and you start up using the 64-bit kernel it will display x86_64 instead of i386.

You can find out more about the use of the 32-bit kernel by default in the Why does my Mac OS X 10.6 kernel run in 32-bit mode? question here on Super User.

share|improve this answer
    
can i make 64bit default? –  zengr Jul 8 '10 at 5:52
    
Read the accepted answer in the Superuser post that Chealion linked to. Short answer is yes but you don't need to to run 64-bit applications. –  fideli Jul 8 '10 at 10:58
    
Got that, thanks :) –  zengr Jul 8 '10 at 16:46

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.