<snip>
splash.xpm.gz was removed from /boot/grub by person or persons unknown
presumably incident to an update.
splash.xpm.gz still exists at /usr/share/grub/splash.xpm.gz so running:
cp /usr/share/grub/splash.xpm.gz /boot/grub/splash.xpm.gz
will restore the status quo ante
running:
emerge grub-splashes
will add 8 new .xpm.gz files to /boot/grub/, as none of these is named
splash.xpm.gz, simply emerging grub-splashes will not restore the boot
screen. To use one of the new splashes requires editing grub.conf 's
"splashimage= " line to reflect one of the (no doubt) wonderfully decorative
splashes..
Alternatively, delete or comment the "splashimage= " line and fallback to a
plain undecorated boot options menu.