First of all I should say I'm a fool in linux and I apologise if this question is too foolish or if this is not the appropriate place to ask.
Anyway I'm setting up an old desktop I got from a relative to be a media center. I'm doing because it's awesome to repurpose the thing for that.
I successfully made a bootable USB and got openELEC installed on the computer's hard disk, but when I'm booting from there I get this error saying
And also
though I have no idea if it has anything to do with it. The screen freezes and I'm not able to type or do anything
I tried to run the proposed command via a boot in Gparted in Debian, which I happened to have on a Compact Disk, but without success. (Here I'm feeling like a fool). . ..
I hope there is anybody to help me out or just a bit further to the core of the problem. If so, thanks a very lot!!
https://ibb.co/mt3zrd (screenshot with phone)