GRUB (GRand Unified Bootloader) is a bootloader that is commonly used in Linux and Unix-like systems to load the operating system. grub-bios-setup is a command-line utility that is used to set up a device to use GRUB with a BIOS (Basic Input/Output System) configuration. It is typically used to install GRUB on a device’s Master Boot Record (MBR) or on a partition’s boot sector.
The grub-bios-setup command is typically used in conjunction with the grub-install command to install GRUB on a device. The grub-install command is a more versatile command that can be used to install GRUB on a variety of different devices, including BIOS and UEFI systems, and it is the recommended way to install GRUB in most cases.
If you encounter the below error while running the command grub-bios-setup:
grub-bios-setup: command not found
you may try installing the below package as per your choice of distribution:
| Distribution | Command |
|---|---|
| Debian | apt-get install grub-pc |
| Ubuntu | apt-get install grub-pc |
| Alpine | apk add grub |
| Arch Linux | pacman -S grub |
| Kali Linux | apt-get install grub-pc |
| CentOS | yum install grub |
grub-bios-setup Command Examples
1. Set up a device to boot with GRUB:
# grub-bios-setup /dev/sdX
2. Install even if problems are detected:
# grub-bios-setup --force /dev/sdX
3. Install GRUB in a specific directory:
# grub-bios-setup --directory=/boot/grub /dev/sdX