Hello all,
Long time lurker, first time poster. I'm usually able to find what I'm looking for with a good ole' search, but have been unable to in this particular instance. I am trying to install Mountain Lion 10.8.4 on a Dell D430 1.33ghz cpu 2 gigs of ram, and Intel graphics. I can initially install it successfully using the "extra" bundle only from this thread https://osxlatitude.com/index.php?/topic/2467-installing-ml-on-d430-gma950-with-full-qeci/. Then to get qeci, I create another usb and place the Mountain Lion app and postfactor in the applications folder of the current installation. After that, I create an "extra" folder in the usb and add the proper files from the original "extra" folder from the link. I then run postfactor and rebbot. At start up, chameleon is interuppted, I choose the usb and type in the following word for word: DSDT=/Extra/<dsdt filename> arch=i386 -f. It begins to boot then the screen dims and then goes black. Nothing else happens. I've also tried the following word for word: DSDT=/Extra/<dsdt table> arch=i386 -f, and it does the same thing. I've searched through the link to the other website, but it is 140 pages long, and I have not been able to find what I'm looking for. Any help that anyone can provide who has had success with this procedure would be greatly appreciated.