nomodest radeon.modeset nvidia.modeset=0 nouveau.modeset=0 acpi=off update-manager -d sudo mount /dev/sda6 /mnt sudo mount -o bind /dev /mnt/dev sudo mount -o bind /sys /mnt/sys sudo mount -t proc /proc /mnt/proc sudo chroot /mnt grub-mkconfig -o /boot/grub/grub.cfg update-grub2 grub-install /dev/sda exit sudo reboot