Change Kernal after install?

[miker]

I've installed OSX on my Asus P5K and have it running great with no problems except for the lan not working after coming out of sleep mode. To get it working a reboot is necessary. I've done some searching and see that a vanilla kernal should have been selected at 1st install. Is it possible to change to a vanilla kernal at this stage?

[Lanceomni]

I've installed OSX on my Asus P5K and have it running great with no problems except for the lan not working after coming out of sleep mode. To get it working a reboot is necessary. I've done some searching and see that a vanilla kernel should have been selected at 1st install. Is it possible to change to a vanilla kernal at this stage?

 

You can change kernels pretty easy after install. Its called mach_kernel and its in the root directory. One thing to keep in mind is that you must have the proper System.kext & Seatbelt.kext for the kernel version you are using. You will want to line those up prior to changing kernels.

 

1. Find out which kernel, system.kext & seatbelt.kext you have.

1. Kernel: Open Terminal and type the following (you are looking for "Darwin Kernel Version 9.

X.X

")

uname -a

2. System.kext: Open finder to /System/Library/Extensions and right click system.kext and select more info to see the version. Your Kernel and System.kext should always match. Non-matching versions will cause KPs and problems with USB devices.

3. Seatbelt.kext: View this post

http://www.insanelymac.com/forum/index.php?showtopic=148566

 

2. Install Kernel

1. Place the new kernel on your desktop.

2. Give yourself root privileges so that you can modify files.

sudo -s

3. Make a backup copy of your existing kernel and name it mach_kernel.backup

cp -R /mach_kernel /mach_kernel.backup

4. Copy the new kernel from your desktop to the root directory

cp -R ~/Desktop/mach_kernel /mach_kernel

5. Correct ownership for all kernels

chown root:wheel /mach_kernel*

6. Correct permissions for all kernels

chmod 644 /mach_kernel*

 

Reboot & if you have problems you can use the boot-option -v mach_kernel.backup to boot your older kernel