---
name: "grub-setup"
section: "8"
platform: "linux"
package: "grub-pc"
version: "1.99-27+deb7u3"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/grub-setup"
---

# grub-setup(8)

set up a device to boot using GRUB

## NAME

grub-setup - set up a device to boot using GRUB

## SYNOPSIS

**grub-setup** \[*OPTION*...\] *DEVICE*

## DESCRIPTION

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 \[default=/boot/grub\]

- **-f**, **--force**

  Install even if problems are detected

- **-m**, **--device-map**=*FILE*

  Use FILE as the device map \[default=/boot/grub/device.map\]

- **-r**, **--root-device**=*DEV*

  Use DEV as the root device \[default=guessed\]

- **-s**, **--skip-fs-probe**

  Do not probe for filesystems in DEVICE

- **-v**, **--verbose**

  Print verbose messages.

- \-?, **--help**

  give this help list

- **--usage**

  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 \<bug-grub@gnu.org\>.

## SEE ALSO

[**grub-install**(8)](/grub-install/8.md), [**grub-mkimage**(1)](/grub-mkimage/1.md), [**grub-mkrescue**(1)](/grub-mkrescue/1.md)

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

-

  **info grub-setup**

should give you access to the complete manual.