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A bit late to this, but I spotted the following Redhat bug, with patches, which appears to be linked to the cat: /tmp/dd-disk error:

Bug 1287870 - cat: /tmp/dd_disk: No such file or directory (apply patches for Fedora 24/RHEL 7 to Fedora 23)

It might be useful if this error comes up again.

The bug listed above is not related to this install issue. It's a firmware issue with the hardware.

More on booting a practical Fedora UEFI guide and don't use universal usb stick writers explains why UEFI systems have issues with Fedora. It explains how to make it work.