Right, so the script took care of the "still waiting for root device", which allowed me to get into the installer. Prior to fixing that, it would stay stuck on "still waiting". However, now that I can get into the installer, I can't see my SSD drive.
Now I remember - I had to manually edit the script so that it patched the correct file. But again, that just allowed me to get past the "still waiting" message. Still can't see the SSD.
Any other ideas?