How to put a background image on GRUB?

Question

I found some images on the internet about some GRUBs with a background image, I would like to do something like that too, but how? I have GRUB2.

Answer 1

The Ubuntu wiki has a detailed guide. First, you need to make sure the image is in the right format: a 256-color non-indexed RGB JPEG. GRUB checks a number of different places for background settings, and it varies by version; here is the first place checked for two versions:

1.98

Open /etc/grub.d/05_debian_theme, look for the WALLPAPER= line, and set it to the correct path:

WALLPAPER=/path/to/your/bg.jpg

1.99 and up

Open /etc/default/grub and add a new GRUB_BACKGROUND line:

GRUB_BACKGROUND=/path/to/your/bg.jpg