16 Invoking grub-install
The program grub-install installs GRUB on your drive using the
grub shell (see Invoking the grub shell). You must specify the
device name on which you want to install GRUB, like this:
The device name install_device is an OS device name or a GRUB
grub-install accepts the following options:
- Print a summary of the command-line options and exit.
- Print the version number of GRUB and exit.
- Force GRUB to use LBA mode even for a buggy BIOS. Use this option only
if your BIOS doesn't work properly in LBA mode even though it supports
- Install GRUB images under the directory dir instead of the root
directory. This option is useful when you want to install GRUB into a
separate partition or a removable disk. Here is an example in which
you have a separate boot partition which is mounted on
grub-install --root-directory=/boot hd0
- Use file as the grub shell. You can append arbitrary options to
file after the file name, like this:
grub-install --grub-shell="grub --read-only" /dev/fd0
- Recheck the device map, even if /boot/grub/device.map already
exists. You should use this option whenever you add/remove a disk
into/from your computer.