so, i was having difficulty booting the install media from the dvd drive and i had to figure that out because that's how this sits - i just leave the install media in the bottom drive and let it sit there, so i know what the most recent version is, and i have it available in case i need it.

but, as i was doing some troubleshooting, i started to suspect that it's the media itself that's corrupt. thankfully, i do in fact have a backup. of course. so, i'm going to try to reburn that and try again.

to be clear: i could install it from the blu-ray drive, but i don't want to do that, i want to install it from the dvd drive. and, the dvd drive seems to let other media boot, so it kind of has to be the actual disk itself. i think....