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#2416 - 08/29/09 09:11 PM 64 bit?
Virtual1 Offline


Registered: 08/04/09
Loc: Iowa
besides holding keys down, I assume there's a more permanent way to make it always boot 64? (pmset something?)
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#2423 - 08/30/09 12:36 AM Re: 64 bit? [Re: Virtual1]
artie505 Online


Registered: 08/04/09
> [...] I assume there's a more permanent way to make it always boot 64? [....]

VersionTracker has several listed apps that do just that. (I won't link to any of them, because none have been thoroughly reviewed yet.)

If there's a Terminal command I haven't run across it yet.
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#2431 - 08/30/09 04:29 AM Re: 64 bit? [Re: Virtual1]
dkmarsh Offline

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Registered: 08/04/09

From 64-Bit Transition Guide: Kernel Extensions and Drivers:

Quote:
In both client and server versions, you can boot supported computers into 64-bit mode by holding down the 6 and 4 keys at startup time or by adding arch=x86_64 to your boot-args string using the nvram command.

You can also set the machine to boot into 32- or 64-bit mode on the next boot with

systemsetup -setkernelbootarchitecture i386 or systemsetup -setkernelbootarchitecture x86_64

as noted in man systemsetup.
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#2560 - 08/31/09 09:50 AM Re: 64 bit? [Re: dkmarsh]
Virtual1 Offline


Registered: 08/04/09
Loc: Iowa
looks like a good thing to set as say, a noon root cronjob. or how do you make a shutdown item?

Or... is that a setting ONLY for next boot, or is it persistent?
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#2604 - 08/31/09 04:43 PM Re: 64 bit? [Re: Virtual1]
dkmarsh Offline

Moderator

Registered: 08/04/09

Since neither Mac in my household is 10.6-bootable, I'll let you do that research. wink
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#2661 - 09/01/09 11:30 AM Re: 64 bit? [Re: dkmarsh]
Virtual1 Offline


Registered: 08/04/09
Loc: Iowa
It appears to be a persistent setting, but that set flag is not in the help/man pages and it has no complementary "get" variation to check/confirm.
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#2683 - 09/01/09 05:55 PM Re: 64 bit? [Re: Virtual1]
dkmarsh Offline

Moderator

Registered: 08/04/09

Mac OS X Manual Page for systemsetup(8)

The "get" variation, oddly, employs slightly different phrasing:

-getkernelbootarchitecturesetting as opposed to
-setkernelbootarchitecture
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#2789 - 09/02/09 11:37 PM Re: 64 bit? [Re: Virtual1]
Maxintosh Offline


Registered: 09/02/09
Originally Posted By: Virtual1
I assume there's a more permanent way to make it always boot 64?

You can do it automatically by using this program.

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