NAME¶

grub-install — Install GRUB on a device.

SYNOPSIS¶

grub-install [--modules=MODULES] [--install-modules=MODULES]

DESCRIPTION¶

grub-install installs GRUB onto a device. This includes copying GRUB images into the target directory (generally /boot/grub), and on some platforms may also include installing GRUB onto a boot sector.

In order to support UEFI Secure Boot, the resulting GRUB EFI binary must be signed by a recognized private key. For this reason, for EFI platforms, most distributions also ship prebuilt GRUB EFI binaries signed by a distribution-specific private key. In this case, however, the grub-install utility should not be used because it would overwrite the signed EFI binary.

OPTIONS¶

--modules=MODULES

Pre-load modules specified by MODULES.

--install-modules=MODULES

Install only MODULES and their dependencies. The default is to install all available modules.

--themes=THEMES

Install THEMES. The default is to install the starfield theme, if available.

--fonts=FONTS

Install FONTS. The default is to install the unicode font.

--locales=LOCALES

Install only locales listed in LOCALES. The default is to install all available locales.

--compress=no,xz,gz,lzo

Compress GRUB files using the specified compression algorithm.

--directory=DIR

Use images and modules in DIR.

--grub-mkimage=FILE

Use FILE as grub-mkimage. The default is /usr/bin/grub-mkimage.

--boot-directory=DIR

Use DIR as the boot directory. The default is /boot. GRUB will put its files in a subdirectory of this directory named grub.

--target=TARGET

Install GRUB for TARGET platform. The default is the platform grub-install is running on.

--grub-setup=FILE

Use FILE as grub-setup. The default is /usr/bin/grub-setup.

--grub-mkrelpath=FILE

Use FILE as grub-mkrelpath. The default is /usr/bin/grub-mkrelpath.

--grub-probe=FILE

Use FILE as grub-probe. The default is /usr/bin/grub-mkrelpath.

--allow-floppy

Make the device also bootable as a floppy. This option is the default for /dev/fdX devices. Some BIOSes will not boot images created with this option.

--recheck

Delete any existing device map and create a new one if necessary.

--force

Install even if problems are detected.

--force-file-id

Use identifier file even if UUID is available.

--disk-module=MODULE

Use MODULE for disk access. This allows you to manually specify either biosdisk or native disk access. This option is only available on the BIOS target platform.

--no-nvram

Do not update the boot-device NVRAM variable. This option is only available on IEEE1275 target platforms.

--removable

Treat the target device as if it is removeable. This option is only available on the EFI target platform.

--bootloader-id=ID

Use ID as the bootloader ID. This opption is only available on the EFI target platform.

--efi-directory=DIR

Use DIR as the EFI System Partition root. This opption is only available on the EFI ta rget platform.

INSTALL_DEVICE

Install GRUB to the block device INSTALL_DEVICE.

SEE ALSO¶

info grub