First we’ll have to download the grub2 splash image package for Ubuntu. Open up the terminal Application > Accessories > Terminal and type following command:
sudo apt-get install grub2-splashimagesThis will install the splash image package under direcotry /usr/share/images/grub/, navigate to this directory and check out some Grub2 splash Images that you can use.
Now edit the /etc/grub.d/05_debian_theme using command sudo gedit /etc/grub.d/05_debian_theme and search the line ...
WALLPAPER=”/usr/share/images/desktop-base/moreblue-orbit-grub.png”change the above line with following and save the file
Finally, update grub by running the command: sudo update-grub and you should see output something similar to this ...
Generating grub.cfg ...
Found background image: Windbuchencom.tga
Found linux image: /boot/vmlinuz-2.6.35-22-generic
Found initrd image: /boot/initrd.img-2.6.35-22-generic
Found memtest86+ image: /boot/memtest86+.bin
Restart your computer and you should see something more refreshing Grub2 Splash.