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.
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