Keyboard doesnt work on mountain lion setup.

[jacob4duke]

OK so i installed mountain lion with unibeast and everything went fine but now when i boot for the first time and go to the setup screen it detects my keyboard because it asks me to choose which country keyboard to use. But when i try to type in my name, password, etc. it doesnt work at all. Ive used two different keyboards and both dont work. It is not a usb keyboard but the weird connecter one that goes into the back, my wireless usb mouse works fine though. Last year i did have lion successfully on it and took it off for some dumb reason. When i boot into the system i have to type PCIRootUID=0.

 

[kasakka]

By default OSX doesn't have PS/2 keyboard/mouse support. Try using a PS/2 to USB adapter that possibly came with your keyboard. Alternatively you could add PS2 kexts to your installation USB.