MacBookPro3,1 + Snow Leopard = 32 bits.

What I seriously think is that all the Intel Macs will run Snow Leopard in 64 bit mode in every way that matters to the vast majority of its customers, including those that understand the tradeoffs involved in using a 64 bit kernel.

As you well know the first duties of a kernel are to manage the CPU, the processes, the memory, the I/O devices.

Again, it is not even remotely that simple, but it is clear that it is pointless to continue this discussion.

R C-R wrote:

As you well know the first duties of a kernel are to manage the CPU, the processes, the memory, the I/O devices.

Again, it is not even remotely that simple, but it is clear that it is pointless to continue this discussion.

Sorry, it is that simple. That's the definition of the OS kernel in any Computer Science book. If it wasn't that simple there wouldn't be "hackintosh" already running SL with the 64 bits kernel.

Ads are not textbooks.... but you're a terrible advocate of Apple... command Apple is not Snow White, and they oversold this upgrade to their installed base (the non-geeks..) , they could have released teh Server version only... but it's true that for 25 bucks we should not be asking too much

let's spread the word against Apple marketing : Ads are not textbooks ! don't believe in what Apple write or hire a geek to make you understand better what's written or said at Apple confs

I got your words, I'll always wait 1 year before buying OS upgrades and keep my old 'Mac' until it dies, would Apple marketing be happy if a majority of Mac users do the same ?

=) yeah...
or solve our problems with a hackintosh... less money more freedom... doesn't seem inconvenient...

My 2 cents worth ...

This is the easiest way to check your Mac to see if the 64-kernel mode can be used.

1) Open Terminal.
2) Copy & Paste this line into Terminal & press enter. Thanks, deh2k. 😉

ioreg -l -p IODeviceTree | grep firmware-abi

3) If "firmware-abi" = <"> is displayed then Copy & Paste this line into Terminal & press enter. This requires an Admin Password.

sudo systemsetup -setkernelbootarchitecture x86_64

4) Reboot.

If there is a problem when rebooting then follow these steps to revert back to 32-bit mode.

1) Turn off your Mac & boot into 'Safe Mode' by holding down a Shift key after hearing to boot tone.
2) Login & then Copy & Paste this line into Terminal.

sudo systemsetup -setkernelbootarchitecture i386

3) Reboot normally.

Good Luck.

Buzz

I tried this some time ago already... wouldn't boot the 64 bit kernel it boots again normally with the 32 bit kernel... and about the "ioreg" the macbook pro 3.1 has a 64 EFI that was already clear... =)
well thx anyways...

kaosdroid wrote:
I tried this some time ago already... wouldn't boot the 64 bit kernel it boots again normally with the 32 bit kernel... and about the "ioreg" the macbook pro 3.1 has a 64 EFI that was already clear... =)
well thx anyways...

This should do the trick. Check http://netkas.org/?p=189 :

1st. download the boot64.efi they have on their website.
2nd. Paste the boot64.efi file into /System/Library/CoreServices/
3rd. Open Terminal > Type Following Commands
#cd /System/Library/CoreServices/ {Enter}
#sudo chflags nouchg boot.efi {Enter}
#sudo mv boot64.efi boot.efi {Enter} (say yes (Y) if asked)
#nvram boot-args=”arch=x86_64″ {Enter}
4th. Restart computer

Obviously remember to make a back-up of the original boot.efi file. I tried it myself, and even if one messes up OSX is smart enough to boot (32 bits) anyway.

It is reported to work in most MacBook Pro. It can't work on MacBooks for the reasons explained in other posts (lack of GMA 950 64 bit kext).

Well if you would have purchased the nice motorbike instead of the bicycle, you might be able to do it. Since you bought the bicycle, there isn't really a good way to make it into a nice motorbike, even if you hung a nice motorbike engine on it.

Before you try this, you might want to read the original post, paying attention to who the author says needs it & why.

I never realized there were so many kernel & other system-level developers here! 😉

so now rcr found some support, a second apple advocate =) nice...

and dude... i find the bicycle and motorbike metaphor a really ridiculous one... but I have a 64 bit capable notebook that runs a 64 bit OS (linux gentoo) so if anything... apple is wanting me to use this "motorbike" (makes me sick to use those terms.. but seems that you guys are talking this slang... so what ever) as a "bicycle"...
so your statement is actually seconding my theory about the apple philosophy: sell sell sell =) right?
i mean come on.. I was watching the last developer conferences and the first 15 minutes seem like a pyramid seller conference... w t f...?
if i wouldn't need logic i wouldn't buy any apple computer at all...

Michelasso wrote:

kaosdroid wrote:
I tried this some time ago already... wouldn't boot the 64 bit kernel it boots again normally with the 32 bit kernel... and about the "ioreg" the macbook pro 3.1 has a 64 EFI that was already clear... =)
well thx anyways...

This should do the trick. Check http://netkas.org/?p=189 :

1st. download the boot64.efi they have on their website.
2nd. Paste the boot64.efi file into /System/Library/CoreServices/
3rd. Open Terminal > Type Following Commands
#cd /System/Library/CoreServices/ {Enter}
#sudo chflags nouchg boot.efi {Enter}
#sudo mv boot64.efi boot.efi {Enter} (say yes (Y) if asked)
#nvram boot-args=”arch=x86_64″ {Enter}
4th. Restart computer

Obviously remember to make a back-up of the original boot.efi file. I tried it myself, and even if one messes up OSX is smart enough to boot (32 bits) anyway.

It is reported to work in most MacBook Pro. It can't work on MacBooks for the reasons explained in other posts (lack of GMA 950 64 bit kext).

It doesn't work on the macbook pro 3.1
you would need some hex editor to make it work...

R C-R wrote:
Before you try this, you might want to read the original post, paying attention to who the author says needs it & why.

I never realized there were so many kernel & other system-level developers here! 😉

Yeah you probably thought, the only people to develop something already are contracted by apple...

If running a 64-bit kernel is so important and provides you so much benefit, run linux. You said you can. And since you think the 64-bit kernel is soooooooo totally awesome, just run linux.

hehehe... =)
you're worth than rcr..
I am already running linux gentoo with a 64 bit kernel... and it is totally awesome.. unlike mac os x.6
still wouldn't explain why apple was lying about their new cat..