I rebooted to initialize that driver and ran into some trouble. The system boots to an ncurses dialog that tells me that the system has to reboot because of a display driver change. I select "okay" or just wait 30 seconds, and reboot it. It boots to the ncurses dialog that tells me that the system has to reboot because of a display driver change, etc.
I select "cancel" and it boots to "Starting Terminate Plymouth Boot Screen..." and hangs there. The drive access light flickers, but the boot process does not proceed.

I've been rebooting the thing for more than an hour and I've had enough. It's 2:00 am and I have to work tomorrow. I'll give it another pass tomorrow night. I'm anticipating the very real possibility of a reinstall from scratch unless somebody here knows something.
All information/suggestions appreciated.
Thanks.
Update: Just noticed that the machine did boot enough to get ssh working. Found this in the journal:
- Code: Select all
Jul 29 02:07:12 pvr kernel: ---[ end trace c7e2bdd3dd63942f ]---
Jul 29 02:07:12 pvr kernel: NVRM: failed to register procfs!
Jul 29 02:07:12 pvr kernel: NVRM: The NVIDIA probe routine was not called for 1 device(s).
Jul 29 02:07:12 pvr kernel: NVRM: This can occur when a driver such as:
NVRM: nouveau, rivafb, nvidiafb or rivatv
NVRM: was loaded and obtained ownership of the NVIDIA device(s).
Jul 29 02:07:12 pvr kernel: NVRM: Try unloading the conflicting kernel module (and/or
NVRM: reconfigure your kernel without the conflicting
NVRM: driver(s)), then try loading the NVIDIA kernel module
NVRM: again.
Jul 29 02:07:12 pvr kernel: NVRM: No NVIDIA graphics adapter probed!
Jul 29 02:07:12 pvr kernel: [drm] Module unloaded
I'm really beat right now and have no idea how to accomplish any of this at the command line. Heading to bed. Back at it tomorrow night.