Changing Linux Grub Loader Themes

1. Prepare images with format. png or. tga.
2. Access the terminal, type gksudo nautilus. Then use the nautilus window "special" to copy your picture files into the directory / usr / share / / images / desktop-base.
3. Call the terminal type the following command and press enter:

sudo gedit / etc/grub.d/05_debian_theme

4. Then will come a gedit window. Replace moreblue-orbit-grub.png with your file name.
5. Click Save. Call again the terminal and type:

sudo update-grub

6. Look carefully at your terminal. If it is correct, then the terminal should be able to find the image you'll use.
7. Restart your computer.