Same problem here. The touchpad and laptop keyboard don't work. And the network drivers aren't installed too.
They were working fine with the Sierra Zone install though
My laptops mouse and keyboard weren't working during the installation but USB keyboard and mouse worked for me.
But the problem is after the installation it still doesnt recognise my mouse/keybord. Even the LAN drivers aren't installed
I have the same problem. Some forums said I'll have to disable my external graphics card before running the installer. I don't have the option in my BIOS to do so though
Could you figure it out yet?