Glossary of Terms – What Is GRUB?

Do you have any idea about GRUB?

This article shows the basic information of GRUB, like its versions and errors.

Besides, it allows users to select a specific kernel configuration available on a particular operating systems partitions.

Next, GRUB loads the selected kernel into memory and passes control to the kernel.

GRUB Versions

GRUB has two major versions: GRUB legacy and GRUB 2.

GRUB version 1, also called GRUB legacy, is only popular with some older releases of Linux distributions.

Now it is used by a majority of Linux distributions.

Actually, The GRUB 2 rescue mode is a major enhancement to the GRUB bootloader.

Usually, there is one prompt showing users the specific GRUB issue when getting grub rescue command.

And they can search for it online to get the best solutions.