how do you know which kernel you are in?

[Aven SkyGazer]

how do you know find out while in operation which kernel you are running in ?

 

[mkrishnan]

This is at least one way...

http://osxdaily.com/2009/09/07/how-...it-or-64-bit-kernel-in-mac-os-x-snow-leopard/

 

[celticpride678]

System Profiler>Software>64-bit Kernel and Extensions (Yes or No)

 

[robj]

As the post in osxdaily says, open a terminal and type uname -a

I did it, and i found out that my MBP is running a 32 bit kernel. (!)

I thought that this type of machine should be using a 64 bit kernel.
I'll try to boot into 64 bit mode holding '6' and '4' during boot, but how can I make this mode the default?

 

[mkrishnan]

I'll try to boot into 64 bit mode holding '6' and '4' during boot, but how can I make this mode the default?

I think this might work?

http://netkas.org/?p=127

 

[robj]

I think this might work?

http://netkas.org/?p=127

Thank you, I'll give it a try

 

[kainjow]

Couldn't you also open Activity Monitor and look at the Kind column for kernel_task? It should say Intel for 32-bit and Intel (64-bit) for 64-bit.

 

[maflynn]

In the terminal, type uname -a

If it ends in _x86_64 then you have the 64bit kernel.