[20:58] <astraljava> Greetings everybody. I know it's been a looong time, and I cannot expect any of you to provide any tech support for me, but maybe it's forgiven to ask for a small favour? 
[20:58] <pleia2> hey astraljava :)
[20:59] <astraljava> The quickest way to determine whether your system may assist me, is to check the "set root=" section in /boot/grub/grub.cfg.
[20:59] <astraljava> Heeey, pleia2!
[20:59] <astraljava> LTNC, how have you been?
[20:59] <pleia2> good, but unable to reboot at the moment to help you :)
[21:00] <astraljava> Not to worry, I've come to the conclusion this may be such a corner case not many can. :D
[21:01] <astraljava> If you have "set root='lvmid=<blahblahblah>'" in the menu entry, then you _may_ be eligible to win an additional service request! Yay! \m/
[21:02] <astraljava> Oh, and your system ought to be newer than 20.04.
[21:03] <astraljava> Would you like to hear more of the issue at hand? That's alright, I'll tell you anyway. There may be a bug in grub-mkconfig that's been lying dormant since 2017, at least.
[21:04] <astraljava> IF that didn't make your mouth watery, then I don't know what can.