My mac boots in 64bit and I need 32bit! help!


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Just undo whatever steps you took to make it boot in 64-bit mode.

If you're holding 6 & 4 then reboot and don't touch anything.

If you edited the com.apple.Boot.plist then go back and change the boot arguments line form x86-64 back to i386.

if you edited nvram parameters just run the command again boot-args arch=i386

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I really don't know what I did to turn it on. and let it boot by itself and starts in 64 mode

i got a MacBookPro4,1 model

I already checkd com.apple.Boot.plist and here it is:

<?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></string>

</dict>

</plist>

Edited by Vakerorokero
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any way I can make it default? how can I check the nvram parameters?

"nvram -p" will print them, look for a boot-args line.

"nvram -d boot-args" will remove boot arguments (you'll have to use sudo with this).

If you can't remember changing anything to make it boot in 64-bit mode, what makes you think it is?

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Let us know the results...good luck

it says it is in system profiler and some people witht eh same card are makng it work but say "it doesn't work in 64bits!" I'm doing a clean install to see what happens...
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