I updated Nvidia drivers from version 580 to 590 on Ubuntu 24, using the additional drivers window. Rebooted. Now instead of the OS, it's booting into something called "BusyBox (initramfs). with a shell. No error message. I don't feel like dedicating an indefinite time to fixing it. Maybe now LLMs will have replaced searching forums and Stack Overflow.
It is this class of problems that has kept me from switching. I'm not sure if it would be easier to track this down, or install the OS clean again. I lament having to make this decision.