Allegedly, on or about 16 January 2016, Bob Marcan sent:
What about /root/initial-setup-ks.cfg or /root/anaconda-ks.cfg ? I belive it is created at the installation time.
I've already suggest them, and others have suggested at least one of them, too. However, there is one potential problem with them: If the clock wasn't properly set until after installation was complete, they will have the wrong file dates. That's how it was on one of my PCs. Heck knows why, there's an NTP server on the LAN, the installer could have made use of it, or any on the WWW.