---
name: "grub"
section: "8"
platform: "linux"
package: "grub-legacy"
version: "0.97-80"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/grub"
---

# grub(8)

the grub shell

## NAME

grub - the grub shell

## SYNOPSIS

**grub** \[*OPTION*\]...

## DESCRIPTION

Enter the GRand Unified Bootloader command shell.

- **--batch**

  turn on batch mode for non-interactive use

- **--boot-drive**=*DRIVE*

  specify stage2 boot\_drive \[default=0x0\]

- **--config-file**=*FILE*

  specify stage2 config\_file \[default=/boot/grub/menu.lst\]

- **--device-map**=*FILE*

  use the device map file FILE

- **--help**

  display this message and exit

- **--hold**

  wait until a debugger will attach

- **--install-partition**=*PAR*

  specify stage2 install\_partition \[default=0x20000\]

- **--no-config-file**

  do not use the config file

- **--no-curses**

  do not use curses

- **--no-floppy**

  do not probe any floppy drive

- **--no-pager**

  do not use internal pager

- **--preset-menu**

  use the preset menu

- **--probe-second-floppy**

  probe the second floppy drive

- **--read-only**

  do not write anything to devices

- **--verbose**

  print verbose messages

- **--version**

  print version information and exit

## REPORTING BUGS

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

## SEE ALSO

[**update-grub**(8)](/update-grub/8.md), [**grub-install**(8)](/grub-install/8.md).

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

-

  **info grub**

should give you access to the complete manual. You may need to install the **grub-legacy-doc** package.