grub2-bios-setup - Man Page

set up a device to boot using GRUB


grub-bios-setup [OPTION...] DEVICE


Set up images to boot from DEVICE.

You should not normally run this program directly.  Use grub-install instead.

-a,  --allow-floppy

make the drive also bootable as floppy (default for fdX devices). May break on some BIOSes.

-b,  --boot-image=FILE

use FILE as the boot image [default=boot.img]

-c,  --core-image=FILE

use FILE as the core image [default=core.img]

-d,  --directory=DIR

use GRUB files in the directory DIR [default=/boot/grub2]

-f,  --force

install even if problems are detected

-m,  --device-map=FILE

use FILE as the device map [default=/boot/grub2/]


Do not apply any reed-solomon codes when embedding core.img. This option is only available on x86 BIOS targets.

-s,  --skip-fs-probe

do not probe for filesystems in DEVICE

-v,  --verbose

print verbose messages.

-?,  --help

give this help list


give a short usage message

-V,  --version

print program version

Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

DEVICE must be an OS device (e.g. /dev/sda).

Reporting Bugs

Report bugs to <>.

See Also

grub-install(8), grub-mkimage(1), grub-mkrescue(1)

The full documentation for grub-bios-setup is maintained as a Texinfo manual.  If the info and grub-bios-setup programs are properly installed at your site, the command

info grub-bios-setup

should give you access to the complete manual.


February 2024 GRUB 2.06 System Administration Utilities