Fresh newbie with a boot problem

Hello,

Finally built a new rig, and wanted to ditch Windows.

Got KDE neon up and running, booted into it, got my browser mostly back to how I like it, ran an update for my video card. I didn't notice the screen blackout and come back like it normally would for a video update, but I don't think that has anything to do with my current issue. I tried to restart to make sure it was running, and the update part of discover showed up and said I had a couple hundred updates to get, no big surprise there, since it is a fresh install.

Then it hung on fetching updates, and while I could browse my list of programs, I couldn't do anything else. So I did a hard shut down and powered back up.

It sticks on some kennel warnings and won't go any further.

Obviously I can't really do anything from there that I know of.

I also can't even get it to boot with the install media. That just sticks on a black screen. I can tell the monitor is actually showing black, as it doesn't give the "NO SIGNAL" warning. I have no idea what to do from here since I can't get it to react to anything, much less know how to fix anything if I could get in.

As for what the warnings say, there are 6 or so lines saying the same thing: problem blacklisting hash (-13), and one more that says nvme2: failed to set APST feature (2)

I haven't put anything on nvme2 yet, I haven't even formatted it yet, just the primary drive (nvme0). So I'm not sure what could possibly be wrong with it yet.