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(grub.info)Invoking grub-install

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Invoking grub-install
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   The program `grub-install' installs GRUB on your drive by the grub
shell (Note: 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.

   `grub-install' accepts the following options:

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

`--version'
     Print the version number of GRUB and exit.

`--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.

`--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)'

`--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

`--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.