:: To use the new features provided in this GRUB update, it is recommended
   to install it to the MBR or UEFI. Due to potential configuration
   incompatibilities, it is advised to run both, installation and generation
   of configuration:
     $ grub-install ...
     $ grub-mkconfig -o /boot/grub/grub.cfg

# For installation to MBR on BIOS system:
grub-install --target=i386-pc --recheck /dev/sda # or whichever drive

# For installation ESD on UEFI system:
grub-install --target=x86_64-efi --bootloader-id=grub_uefi --recheck