grub2-install
- -v - verbose output
- –boot-directory=DIR - install GRUB images under the directory DIR/grub instead of the boot/grub directory
- –no-bootsector - do not install bootsector
- -s or –skip-fs-probe - do not probe for filesystems in DEVICE
- –target=TARGET - install GRUB for TARGET platform [default=i386-pc]