64-Bit Question

[dcuellar]

What do I need to do to use the 64 bit version of the OS?

 

I've successfully installed the 32 bit version and was wondering if I could log into 64 bit. My specs are in my signature.

 

Any special kexts needed? Some need to be replaced?

 

Any help is much appreciated.

[audit13]

Have you checked to see whether you arch=i386? Try changing it to arch=x86_64. 64-bit mode was enabled by default on my desktop with an e4500 cpu.

[MacUser2525]

Have you checked to see whether you arch=i386? Try changing it to arch=x86_64. 64-bit mode was enabled by default on my desktop with an e4500 cpu.

 

More specifically check to confirm whether the OP is running 64bit already by using the Activity Monitor (in Applications -> Utilities folder) looking at the systems processes for kernel_task (Intel 64bit) if so you are running 64bit already, you can also get this information by using uname -a in the Terminal.app (in Applications -> Utilities folder) for output like this.

 

 MacUser2525s-Mac-Pro:~ MacUser2525$ uname -a
Darwin MacUser2525s-Mac-Pro.local 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov  3 10:35:19 PST 2009; root:xnu-1486.2.11~1/RELEASE_X86_64 x86_64

 

If not running 64bit then when you boot if it asks to enter boot parameters then type in the already mentioned arch=x86_64 and hit the enter key to boot with it 64bit mode, to make the change permanent edit the /Extra/com.apple.Boot.plist file as root user in the Terminal.app using the command nano /Extra/com.apple.Boot.plist to contain the setting my file below for example.

 

 MacUser2525s-Mac-Pro:~ MacUser2525$ cat /Extra/com.apple.Boot.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
 <key>Kernel</key>
 <string>mach_kernel</string>
 <key>Kernel Flags</key>
 <string>arch=x86_64 -v</string>
	 <key>SystemID</key>
	 <string>00000000-0000-1000-8000-001FD0273C49</string>
	 <key>Timeout</key>
	 <string>5</string>
	 <key>GUI</key>
	 <string>n</string>
 <key>Graphics Mode</key>
 <string>1920x1200x32</string>
</dict>
</plist>

 

You need not worry about the extra stuff in there just the line <string>arch=x86_64 -v</string> under the <key>Kernel Flags</key> line the order of the lines is important. You don't need the -v unless you want to boot in text mode all the time if this is the case then you would want the <key>GUI</key> <string>n</string> lines as well assuming you use Chameleon for the boot loader.