Jump to content

Installing ALC889A Kext Gives Error : "System extension cannot be used"


yamcha
 Share

3 posts in this topic

Recommended Posts

Hi guys,

 

I'm having a lot of trouble installing ALC889A kext, when I move the kext files into extensions folder a window pops up saying

 

The system extension "/System/Library/Extensions/ALCinject.kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update.

 

My system specs are on my signature, I've fresh installed iATKOS v1.0i. My question is how do i install the kext's successfully, I've also tried using terminal but I can't seem to get it right, I would really appreciate one of your guys' help, I'm lost I've done a lot of searching but still can't get it to work. I just need very simplified instructions for Terminal.

Link to comment
Share on other sites

In terms of that specific error it usually comes about when you copy a kext over to the Extensions folder and it doesnt have the proper permissions. Just chown root:wheel and chmod 755 it and then you can load it using kextload:

 

sudo -s
chown root:wheel "insertnamehere"
chmod 755 "insertnamehere"
kextload -t "insertnamehere"

Link to comment
Share on other sites

 Share

×
×
  • Create New...