Hi,

After I tried new AppleACPIPowerManagement.kext download somewhere from internet, my working Hacintosh couldn't reboot.
I did backup the working AppleACPIPowerManagement.kext, how to load it back?

I boot from iATKOS DVD and cp the backup kext file under /System/Library/Extensions and remove Extension.mkext under /System/Libray.

But still couldn't reboot my hacintosh back,

please help!!!!otherwise I have to reinsatll everything and all my work couldn't copy from my user dir, if couldn't reboot.


thanks

boot off an install cd. and open terminal. where 'OSX' is the name of your harddrive where osx is installed and /Volumes/OSX/backup/ is where your AppleACPIPowerManagement.kext backup is saved.

# cd /Volumes/OSX/System/Library/Extensions/
# rm -r AppleACPIPowerManagement.kext
# mv /Volumes/OSX/backup/AppleACPIPowerManagement.kext .
# chmod -R 755 AppleACPIPowerManagement.kext
# chown -R root:wheel AppleACPIPowerManagement.kext
# rm -rf /Volumes/OSX/System/Library/Extensions.*
# reboot

That basically was what I did.

I did not run chown and chmod,because they are right.
I did rm /System/Library/Extensions.mkext
I also rm /System/Library/Extensions/Caches/*

I will try rm /System/Library/Extensions.* later, post result back later.

Thanks for your reply, I really really don't want to reinstall my system again.

I have done this same thing - swapped out my appleacpi for another and it KP'd my system. What I did was booted off the iatkosv4i dvd and found the copy of it there, copied it to my /Volumes/OSX/System/Library/Extensions/. I can't remember where it was on the dvd tho. try a:

# cd /Volumes/IATKOS/
# find . -name AppleACPIPowerManagement.kext

this time is working, but found something interesting.
I used OSX86Tools to install new kext, and OSX86Tools backup the old kext file for me.
If i copy back the OSX86Tools back file, the system can reboot.

But couldn't reboot with my back kext file. I found there is interesting character @ at the end of file mod.
like
drwxr-xr-x@ 3 root wheel xxxxxxxblah blah
This mod is not right, just can remember when i type it here.

But i did remember that @ made me sad.

anyone knowes what means of this @ ?

PS, I run rm /System/LibraryExtensions.*