I've got this error when I try to boot my desktop up.
/tmp/mountroot-fail-hooks.d//scripts/init-premount/lvm2: No such file or directory
I'm running "on the metal" or whatever, no dual-boot anything.
I recently upgraded to 20.04 LTS from 18.04 LTS, but it ran fine until I started upgrading things and ran "autoclean", then reset.
I read that I should try for the Grub menu, and tried pressing ESC at the 5 dots loading screen, but holding it down just made it flicker between some kind of commandline / terminal, and the 5 dots.
I tried pressing ESC and holding C or any of the SHIFT keys during the terminal…
None of those got me to the Grub menu, whose appearance I looked up.
Oooh… Trying the "normal" command and hitting ESC while it was running got me to the GRUB Menu! Unfortunately, even doing the safe-mode parallel and running the package restorer didn't help.
How do I get to the Grub menu on 20.04 LTS Ubuntu?