By default Ubuntu has black GRUB screen. It's not very beautiful. How to change this to something better?
- Get some pictures in XPM format - http://www.gnome-look.org/ (search is on the left, enter "grub") or if you have apt-get: sudo apt-get install grub2-splashimages . If you have XMP image you need to compress it to gz format: gzip image.xmp. This will produce you the file image.xmp.gz. Put this file into /boot/grub/splashimages.