---
name: "grub-mkdevicemap"
section: "8"
platform: "linux"
package: "grub-common"
version: "2.12-9+deb13u2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/grub-mkdevicemap"
---

# grub-mkdevicemap(8)

make a device map file automatically

## NAME

grub-mkdevicemap - make a device map file automatically

## SYNOPSIS

**grub-mkdevicemap** \[*OPTION*\]...

## DESCRIPTION

Generate a device map file automatically.

- **-n**, **--no-floppy**

  do not probe any floppy drive

**-s**, **--probe-second-floppy** probe the second floppy drive

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

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

- **-h**, **--help**

  display this message and exit

- **-V**, **--version**

  print version information and exit

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

  print verbose messages

## REPORTING BUGS

Report bugs to \<bug-grub@gnu.org\>.

## SEE ALSO

[**grub-probe**(8)](/grub-probe/8.md)

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

-

  **info grub-mkdevicemap**

should give you access to the complete manual.