Change Grub background image in Squeeze

“This is the first post of two on how to get rid of the SpaceFun
theme. Obviously the first step is to change the desktop
background. After that, it gets more difficult. Squeeze uses GDM
(Gnome display manager) 3, which unlike GDM2 has no easy GUI to
change backround image, and Grub (GNU GRand Unified Bootloader) 2,
which also requires a bit of hacking to change the background
image.

“After following a dead end or two, I found a method for
changing the Grub background image that seems to work on the Debian
Forum.”

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