I've done it before and it works well with the exception of the usb, installing comboupdate, and when it finish, before restarting, i repair permissions with kext wizard, and, as i said, the last time worked fine.
The problem now is that the cpu turns to be very slow, and it freeze when loading everything (specially systempreferences or finder).
I think i have extra kexts that i don't neede and causes it, or maybe i need an extra kext that i have no installed yet...
In the attachment i've put extra folder, with the kexts and dsdt, and a darwindumper report, i'm using chameleon RC5, maybe i should update to a newest version or maybe to chimera (last time i was working with chimera, but now i have try after updating and continues freezing).
Any idea about it or how to solve will be very helpful.
Last question: ¿can i make a "restore point" as in windows, so if i update and it doesn't works, return or downgrade to the previous version i have in my laptop?