Comments on: Switching between 32 bit and 64 bit mode in Snow Leopard

By: steve

steve — Sat, 13 Oct 2012 06:18:20 +0000

but also when i run systemsetup -getkernelbootarchitecturesetting in the terminal it says set to x86_64 which would mean its running 64bit but still under 64-bit Kernel and Extensions it says NO

By: steve

steve — Sat, 13 Oct 2012 06:08:27 +0000

i dont know if my computer will work in 64bit or not. i have been reading a lot online an nothing has given me a good answer to if it does or not and all that i have seen is that the computer should do both. i am a photographer and i just want to run lightroom 4 which will not run on my computer now because it is stuck in 32bit. i did the hold 6 and 4 key that did not work. i ran that command in the terminal and it said saved as if it worked but when i checked it said it said NO under the 64-bit Kernel and Extensions. i also tried restarting is with the command under terminal. please help i will do anything to get lightroom 4 to run on this computer without having to get a new computer. thank you

By: webmaster

webmaster — Thu, 12 Jul 2012 21:05:11 +0000

In Terminal the password doesn’t ever show. It’s a security feature of UNIX. So, when you type your password it will look as if nothing happens. Enter it anyway and hit return and the command should work.

By: Guz

Guz — Thu, 12 Jul 2012 20:54:16 +0000

Whenever I try to use terminal & the sudo command to change to 64 bit, the usual result is for it to give a warning & demand a password. However, the screen will not accept a password. When I try to type the password, nothing appears on the screen. It is as if I were not typing.

Under System Preferences, under Accounts, Login Options, Network Account Server, Join, Open Utility Directory Utility; I unlocked the lock and entered the password, Then I checked the “Active Directory” which was not checked. Now I have Active Directory & LDAPv3 checked; “BSD Flat File and NIS,” and “Local” are also checked, but greyed out — I can’t ungrey them.

After jumping through all those hoops; I stil can’t get the sudo command to work. The same nothing happens when I try to type in a password.

I have this dislike for some of these Apple problems.

I finally got 64 bit to work by shutting down & restarting. Then holding down the 6 & 4 keys (long, long time) on start up — but only if I use the MacBook Keyboard; this does not work with my RF UBS keyboard.

I wish there were some way to switch back & forth between 32 & 64 bit without rebooting the computer. I did this change because my SnowLeopard computer is frequently freezing after I upgraded the RAM, & a website recommended changing to 64 bit to stop this.

By: Setting MacOS into 64-bit Mode | Art of Business Intelligence

Setting MacOS into 64-bit Mode | Art of Business Intelligence — Fri, 24 Feb 2012 01:36:30 +0000

[...] http://macstuff.beachdogs.org/blog/?p=134 [...]

By: Megan Paterson

Megan Paterson — Fri, 06 Jan 2012 15:29:02 +0000

So, I don’t have snow leopard version of the terminal on my machine for some reason. I bought the machine new with snow leopard on it. I don’t have the command -getkernalbootarchitecturesetting in systemsetup. Now what do I do?

By: dennis

dennis — Thu, 13 Oct 2011 17:43:27 +0000

but what if it doesnt boot into 32 bit kernel?

here i have this problem with snow leopard. i cant switch it to 32 bit kernel. 32 bit BOOT kernel or boot mode works, yes. bot not the “overall” or “global” 32 bit kernel.

it keeps telling me “64 bit kernel and extensions: yes”.

whats the point??? i tried about EVERYTHING….

By: kingkenji

kingkenji — Tue, 27 Sep 2011 19:51:04 +0000

To boot into 32bit permanently you want to run

sudo systemsetup -setkernelbootarchitecture i386

also to check which mode you’re running after bootup

#uname -m

i386 for 32bit
and
x86_64 for 64bit

By: prabhakar

prabhakar — Wed, 13 Jul 2011 18:57:54 +0000

BTW, is there a way to make it boot in 32 bit mode permanently?

By: prabhakar

prabhakar — Wed, 13 Jul 2011 18:57:25 +0000

Excellent!!!! Thanks a ton. For me the other way worked. i.e. by default my mac boots into 64 mode, and VPN was not working. When I changed it to 32 bit by the command you mentioned and rebooted, VPN worked like a charm.

Thanks a ton again!!!