If you don’t like the default Grub Bootloader Menu Background and want to change the background image, then this article is for you. In this article you will learn how to customize the Grub Background Image.
How to Change Grub Background Image
Several ways available to modify the background image in Grub. But here we are going to change using your file manager. For this here i am using default gnome file manager Nautilus in Ubuntu OS.
Grub only supports PNG, JPG, and TGA image types. For the good result always use ant type PNG image files. Otherwise you need to use 8-bit (256 colors) non-indexed JPG/JPEG images.
First copy the PNG image file that you want to use as the background image.
Then open the default file manager on your system as a root user. In Ubuntu the default file manager is Nautilus. So open Nautilus as root. For this open the terminal application (ctrl+alt+t) and run below command.
If you are using any other file manager then your syntax is. Just replace name-of-the-file-manager with the real name.
Then go to Filesystem root or Other Locations-> Computer
Here you need go to below directory (boot->grub).
Just paste the copied new image here.
And close all file manager window.
Then open the terminal (ctrl+alt+t) and update the grub using this command.
Restart your system to check the background image.
If you install more than 1 operating system on your pc then you will see the Grub boot menu by default.If you didn’t see the GRUB menu on Ubuntu and installed only one OS, just press the SHIFT key (for BIOS users) or ESC (for UEFI users) during the boot (That is before OS logo screen). It will show the Grub boot menu.