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Invoking grub-install

The program @command{grub-install} installs GRUB on your drive by the grub shell (see section Invoking the grub shell). You must specify the device name on which you want to install GRUB, like this:

grub-install install_device

The device name install_device is an OS device name or a GRUB device name.

@command{grub-install} accepts the following options:

@option{--help}

Print a summary of the command-line options and exit.

@option{--version}

Print the version number of GRUB and exit.

@option{--force-lba}

Force GRUB to use LBA mode even for a buggy BIOS. Use this option only if your BIOS doesn't work in LBA mode even though it supports LBA mode.

@option{--root-directory=dir}

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 when you have a separate boot partition which is mounted on `/boot':

grub-install --root-directory=/boot '(hd0)'

@option{--grub-shell=file}

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

@option{--recheck}

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.

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