Moving from 32-bit to 64-bit

[dcuellar]

Hello all,

I'm relatively new to this, but I've managed to install Snow Leopard 10.6.2 via iAtkos v5.

 

I run the command uname -a and get this:

 

Darwin Danilo-Mac.local 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10
 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386 i386

 

That means that I'm running in 32 bit mode, correct?

 

Would I be able to switch to 64 bit mode? What would I have to do? What are the advantages/disadvantages of doing this?

 

I have my system specs in my sig.

[Õun]

I'm relatively new to this, but I've managed to install Snow Leopard 10.6.2 via iAtkos v5.

Would I be able to switch to 64 bit mode? What would I have to do? What are the advantages/disadvantages of doing this?

As you have 6GB of memory it might give you some performance boost. I wouldn't worry about it though.

I'm not familiar with iAtkos, so I don't know what boot loader it installed. In Chameleon RC4 I use arch=x86_64 to boot in 64bit mode. Remember though that all your kext must support it as well or they don't get loaded. If it works then you can enter the kernel flag to your boot.plist to avoid the typing every boot

[Biso007]

As you have 6GB of memory it might give you some performance boost. I wouldn't worry about it though.

I'm not familiar with iAtkos, so I don't know what boot loader it installed. In Chameleon RC4 I use arch=x86_64 to boot in 64bit mode. Remember though that all your kext must support it as well or they don't get loaded. If it works then you can enter the kernel flag to your boot.plist to avoid the typing every boot

 

one other minor issue which is the CPU temp. I noticed higher temp with my CPU when I use 64bit mode. Since I have only 2 GB RAM, I always prefer to run in 32bit mode.

 

BTW, in OSX world the 64bit apps can still work in 64bit mode even if the kernel is 32bit.

[dcuellar]

one other minor issue which is the CPU temp. I noticed higher temp with my CPU when I use 64bit mode. Since I have only 2 GB RAM, I always prefer to run in 32bit mode.

 

BTW, in OSX world the 64bit apps can still work in 64bit mode even if the kernel is 32bit.

 

If that's true then I guess I don't need to mess with it; however, I could use the memory boost as the fellow before you commented.

 

I currently have Chameleon RC3 installed.

 

If that's true then I guess I don't need to mess with it; however, I could use the memory boost as the fellow before you commented.

 

I currently have Chameleon RC3 installed.

 

Ok, I just logged into 64 bit mode, but I can see that my graphics card is not detected. It's using a generic string.

 

Anyone here know of a kext or a way to get the nVidia 9800 GTX+ 1GB DDR3 working?

[dcuellar]

Nevermind. I have my card working now.

[comrad]

Hello all,

I'm relatively new to this, but I've managed to install Snow Leopard 10.6.2 via iAtkos v5.

 

I run the command uname -a and get this:

 

Darwin Danilo-Mac.local 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10
 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386 i386

 

That means that I'm running in 32 bit mode, correct?

 

Would I be able to switch to 64 bit mode? What would I have to do? What are the advantages/disadvantages of doing this?

 

I have my system specs in my sig.

 

Your applications will run in 64bit mode if they are written in 64bit

via virtual memory address mapping.

 

But the XNU kernel is running in 32bit mode and probably the system tasks too,

if the command uname -rm

displays Darwin 10.2.0 i386

 

If your EFI is at 64bit you can test:

 

ioreg -l -p IODeviceTree | grep firmware-abi

 

on my iMac it returns

 

"firmware-abi" = <"EFI64">

 

but on that machine "uname -rm" returns

9.8.0 i386

 

Yes, my iMac is still running 10.5.8 while my Hackintosh is on 10.6.2