One of my drives I want to use(so my windows drive stays away from Linux) exhibits odd messages depending on how I boot it.
if I boot as updated I get tossed into that RESCUE> mode that gets me nowhere(because I don’t know what I’m doing!)

If I do the edit at the Grub screen and add ‘nomodeset’ at the end of the ‘linux’ line, it opens a screen with my router IP, followed by prompt ‘ENTER LOCALHOST’, and I’ve tried root and my names but it keeps going back to that ‘LOCALHOST’ prompt. I did not try 127.0.0.0 however.

in order to do the workaround for Radeon graphics from the long thread,
I need to be in the ‘system’ to apply it, right?

or is there TTY I can get into to add the workaround?