$ curl cheat.sh/
# grub-install
# Install GRUB to a device.
# More information: <https://www.gnu.org/software/grub/manual/grub/html_node/Installing-GRUB-using-grub_002dinstall.html>.

# Install GRUB on a BIOS system:
grub-install --target=i386-pc path/to/device

# Install GRUB on an UEFI system:
grub-install --target=x86_64-efi --efi-directory=path/to/efi_directory --bootloader-id=GRUB

# Install GRUB pre-loading specific modules:
grub-install --target=x86_64-efi --efi-directory=path/to/efi_directory --modules="part_gpt part_msdos"

$
Follow @igor_chubin cheat.sh tldr