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[Fixed] Can't boot Snow Leopard in 32bit mode!

Dr. Hurt

By Dr. Hurt,
in OSx86 10.6 (Snow Leopard)

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Dr. Hurt
Dr. Hurt
Posted
Posted

This problem has been resolved with Chameleon 2 RC3

 

You still need do rebuild the extensions.mkext everytime you edit/add/remove a kext because SL does not do so automatically like Leopard.

Use Kext Utility 2.3.2 to make a full maintenance to your Extensions and Extra

 

OR do this in terminal

sudo -s
kextcache -v 1 -t -m /System/Library/Caches/com.apple.kext.caches/Startup/Extensions.mkext /System/Library/Extensions

 

NB. Don't forget to use "arch=i386" instead of "-x32" in boot.plist for Chameleon

 

 

OLD FIX:

OcciJano told me to do this and it worked:

 

 sudo chown -R 0:0 /Volumes/NAME/Extra/Extensions
sudo chmod -R 755 /Volumes/NAME/Extra/Extensions
sudo Â kextcache -v 1 -t -l -m /Volumes/NAME/Extra/Extensions.mkext Â /Volumes/NAME/Extra/Extensions /Volumes/NAME/System/Library/Extensions

 

Also, must put "-x32 boot-uuid=**************" in com.apple.boot.plist (******* mean boot volume uuid)

 

Thanks to OcciJano and riws

Dr. Hurt
Dr. Hurt
Posted
  • Author
Posted

OcciJano told me to do this and it worked:

 

sudo chown -R 0:0 /Volumes/NAME/Extra/Extensions

sudo chmod -R 755 /Volumes/NAME/Extra/Extensions

sudo kextcache -v 1 -t -l -m /Volumes/NAME/Extra/Extensions.mkext /Volumes/NAME/Extra/Extensions /Volumes/NAME/System/Library/Extensions

 

Also, must put "-x32 boot-uuid=**************" in com.apple.boot.plist ******* mean boot volume uuid

 

Thanks to OcciJano and riws

blaugrana
blaugrana
Posted
Posted
ok.. this causes chalemeon2 - i dont know why :-)

use this bootloader(chameleon 1) http://sacleocheater.hostoi.com/Utils/Bootloader2.dmg

Works perfectly

 

Not working,Restart,Restart....

 

sudo -s

cp /Volumes/Snow\ Alternative/boot /Volumes/<<[YourUsualBootVolume]>>

 

64bit Disabler kext?

kramer2k
kramer2k
Posted
Posted

Well, finally got my 32bit working...

 

turns out the problem was with the installation method

From OSinstall.mkpg -- no 32 bit, panic on boot

From DVD - 32 bit works just like 64 bit

 

probably had to do with permissions issue when installing from Leo...

But it works now

Fully 64 and 32 bit stable 99.9% (potential sleep issue, still working it out)

se_dony
se_dony
Posted
Posted

i have the same problem!

 

@ Dr. Hurt: from where did you run the kextcache? i don't even get into single user mode of my snow leopard install. i thought you can't run it from a running leopard install?

 

@ kramer2k: how did you install it from cd? what did you use to boot the cd?

 

i also tried installing chameleon 1.x over my 2.0rc1 install. nothing has changed.

 

i don't know why it omits the -x32 flag in the com.apple.boot.plist...

 

any ideas?

Dr. Hurt
Dr. Hurt
Posted
  • Author
Posted
i have the same problem!

 

@ Dr. Hurt: from where did you run the kextcache? i don't even get into single user mode of my snow leopard install. i thought you can't run it from a running leopard install?

 

@ kramer2k: how did you install it from cd? what did you use to boot the cd?

 

i also tried installing chameleon 1.x over my 2.0rc1 install. nothing has changed.

 

i don't know why it omits the -x32 flag in the com.apple.boot.plist...

 

any ideas?

 

I booted in 64bit (-x64), and used terminal.

Dabluest
Dabluest
Posted
Posted
ok.. this causes chalemeon2 - i dont know why :-)

use this bootloader(chameleon 1) http://sacleocheater.hostoi.com/Utils/Bootloader2.dmg

Works perfectly

 

 

THANK YOU, THANK YOU, THANK YOU!!! :(

 

After getting nowhere with Snow Leopard and Chameleon2, this bootloader is what solved my kp and allow me to boot into 10.6.

 

Thanks again.

Master Chief
Master Chief
Posted
Posted
ok.. this causes chalemeon2 - i dont know why :-)

use this bootloader(chameleon 1) http://sacleocheater.hostoi.com/Utils/Bootloader2.dmg

Works perfectly

But does it support:

 

/Extra/Extensions/*.kext (or EFI partition)

/dsdt.aml

smbios.plist or com.apple.Boot.plist hacks to modify the "Hardware Overview" in System Profiler?

Dr. Hurt
Dr. Hurt
Posted
  • Author
Posted

Shoot.

I played with the extensions in the /Extra folder and now I can't boot again. I get a KP in both 64 and 32 bit modes. After repairing permission of extra folder (using another leo install), I was able to boot twice then KP again related to IOPCI family??

 

Is this related to the bootloader or the AppleIntelPIIXATA or am I doing something wrong. The KPs seem to be too random. In 32bit mode I get no backtrace with the KP.

 

I still think all this is related to bootloaders. I'm going back to Leo till this matures a bit.

noob766
noob766
Posted
Posted
Shoot.

I played with the extensions in the /Extra folder and now I can't boot again. I get a KP in both 64 and 32 bit modes. After repairing permission of extra folder (using another leo install), I was able to boot twice then KP again related to IOPCI family??

 

Is this related to the bootloader or the AppleIntelPIIXATA or am I doing something wrong. The KPs seem to be too random. In 32bit mode I get no backtrace with the KP.

 

I still think all this is related to bootloaders. I'm going back to Leo till this matures a bit.

 

common error,

check these files

Fixes

Drivers

Dabluest
Dabluest
Posted
Posted
But does it support:

 

/Extra/Extensions/*.kext (or EFI partition)

/dsdt.aml

smbios.plist or com.apple.Boot.plist hacks to modify the "Hardware Overview" in System Profiler?

 

I'm using it now since Chameleon2 won't work for me and it definitely supports /E/E and DSDT. SMBIOS.plist doesn't appear to work, however.

Master Chief
Master Chief
Posted
Posted
Shoot.

I played with the extensions in the /Extra folder and now I can't boot again. I get a KP in both 64 and 32 bit modes. After repairing permission of extra folder (using another leo install), I was able to boot twice then KP again related to IOPCI family??

 

Is this related to the bootloader or the AppleIntelPIIXATA or am I doing something wrong. The KPs seem to be too random. In 32bit mode I get no backtrace with the KP.

 

I still think all this is related to bootloaders. I'm going back to Leo till this matures a bit.

 

I had a similar experience, and my error was that I had both fakesmc.kext and dmos.kext installed in my /Extra/Extensions/ Removing the latter did the trick here. Finally :rolleyes:

 

Note: I am using Chameleon v1.0.12 (boot file is 60288 bytes).

real_sinjon
real_sinjon
Posted
Posted
Shoot.

I played with the extensions in the /Extra folder and now I can't boot again. I get a KP in both 64 and 32 bit modes. After repairing permission of extra folder (using another leo install), I was able to boot twice then KP again related to IOPCI family??

 

Is this related to the bootloader or the AppleIntelPIIXATA or am I doing something wrong. The KPs seem to be too random. In 32bit mode I get no backtrace with the KP.

 

I still think all this is related to bootloaders. I'm going back to Leo till this matures a bit.

 

Hey Dr Hurt

I'm having a similar -x32 KP issue and can only boot into 64bit mode. I've changed a few apps to run in 32 bit mode and this makes it more stable but I'd like to try the 32 bit boot.

I ran your instructions but seem to have an issue with the UUID. I got this from the info pane in Disk Utility for the volume I have installed 10.6 to and then entered in com.apple.Boot.plist under Kernel Flags as:

<string>-x32 boot-uuid=708F9DFF-3775-34CF-9C90-AFB098659263</string>

Is this the correct place to get the string from and have I entered the syntax correctly in the plist file?

Reason I ask is that I get waiting for root device when I use it. Thanks.

dylanj52
dylanj52
Posted
Posted
Hey Dr Hurt

I'm having a similar -x32 KP issue and can only boot into 64bit mode. I've changed a few apps to run in 32 bit mode and this makes it more stable but I'd like to try the 32 bit boot.

I ran your instructions but seem to have an issue with the UUID. I got this from the info pane in Disk Utility for the volume I have installed 10.6 to and then entered in com.apple.Boot.plist under Kernel Flags as:

<string>-x32 boot-uuid=708F9DFF-3775-34CF-9C90-AFB098659263</string>

Is this the correct place to get the string from and have I entered the syntax correctly in the plist file?

Reason I ask is that I get waiting for root device when I use it. Thanks.

 

 

real_sinjon, I have the exact same problem as you. In "default" mode, x64, my install runs flawlessly with no KP. When I add the -x32 flag and boot-uuid to com.apple.Boot.plist, I get a KP. Extremely frustrating as I'd expect the 64 kernel to be more unstable than 32.

Dr. Hurt
Dr. Hurt
Posted
  • Author
Posted
It seems sometimes RC3 doesn't solve the 32 bit issue:

 

http://www.insanelymac.com/forum/index.php...t=#entry1255504

 

It does. You just need to create a new mkext manually after you edit/add/remove any kext because SL does not do that automatically like tiger and leoapard.

 

first post updated.

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