grub-pc: custom splashscreen without rebuilding grub.cfg

Message

edbarx · #1 Post by **edbarx** » 2013-04-30 20:14

This is definitely not rocket science for anyone who read a little bit about unix-like systems like Linux. The tedious chore of rebuilding /boot/grub/grub.cfg can be made unnecessary if one uses a symbolic link pointing to the actual splashscreen image file. Then, one can update the symbolic link to point at whatever image one may want, provided grub-pc supports the image format.

This is the /boot/grub/grub.cfg code that loads my grub-pc splashscreen:

Code: Select all

if background_image /splash/splash.png; then
  set color_normal=white/black
  set color_highlight=green/black
else
  set menu_color_normal=cyan/blue
  set menu_color_highlight=white/blue
fi

Note the absolute path for the symbolic link splash.png. The splash images were placed in /splash in the grub dedicated partition. You can place your images in /boot in which case you can use /boot/splash.png.

As I said, splash.png is a symbolic link:

Code: Select all

lrwxrwxrwx 1 root root      13 Apr 28 14:49 splash.png -> caribbean.png

This can be created using the command:

Code: Select all

ln -s actual_image_file.png splash.png

After these changes, to change the splash screen there would be no need to update grub-pc. Updating the symbolic link is enough and obviously the linked image.

Enjoy!