(In reply to Martin Pluskal from comment #6) > (In reply to Diamantis Karagkiaouris from comment #5) > > i have installed memtest86+ but i cannot run it from the boot menu. Do i > > need something else except installing this package? > > This should help: > # sudo grub2-mkconfig -o /boot/grub2/grub.cfg Unfortunatelly it didn't showup as an option on the menu, even if i enter the above command.