Using the new x86_64 F21 Final RC1 Netinst iso, I got past the finding
storage problem. I am now installing the new system (from my local repo).
So whichever bug: 1111722 or 1167959,
I seem to be good. This time I am installing the Ldxe desktop to give
it a quick run to choose either it or Xfce. Once I boot in, I will try
the install again, to ensure this is fixed.