Probably you’ll be better off with the official docs which base installation on an easy-to-use wizard. This guide is adapted to my special needs, but you can follow it if you please or need; I’ll mark special those parts –like this– and close –/like this–. Everything after a # is a comment, the < > symbols means that you should fill that field with custom data. –MicroPC– In the grub screen type e, append nomodeset fbcon=rotate:1 to the line where you can see vmlinuz (not after ) then press Ctrl+x.