but the lines are way over my head.
it's incredibly tooo much difficult for me
If GRUB fails, why does it NOT fail
after cold restart - in your case
after choosing GRUB's Recovery mode - in my case,
I don't understand.
but i guess i have issues with my mobo (a loosy -to be gentle- asrock):
when i used ubuntu mint on that pc i had far more issues in booting, and sometimes it just froze while using,
so i had a memtest, tried and tried the two ram blocks again ad again, and it turned out that if i use only one, no matter what slot i use i would never have any error, but if i use both of the ram thingies i have errors
Now besides booting issues i notice i have some random major failure when i leave some radio player on and the screensaver starts: i would have to kill xorg or reboot so that pc properly works again...
did you try a memtest?
how did you upload the screenshot?
i manage a website, so i have put the image online, and added the link to it between the "img" tags