Comment 8 for bug 1492934

A quick search found this:

https://lists.archlinux.org/pipermail/arch-general/2015-March/038729.html

My recollection is that using rd.blacklist didn't work for me, because the nouveau driver got loaded later in the boot sequence. You could try adding

  blacklist nouveau

to /etc/modprobe.conf on the installed system to see if that helps.

I see in Peter's log that he is also experiencing bug 16033, although that is probably not important at this stage.