Date: 2019mar7 OS: Linux Distro: RedHat/Fedora/CentOS Keywords: boot, grub Q. Fedora: Set background for grub2 boot A. In file /etc/default/grub - Possibly increase the timeout so you can see the background for longer - Comment out GRUB_TERMINAL_OUTPUT - Add GRUB_BACKGROUND with quotes and valid path in /boot The file image in this example comes with Fedora grub2. If you're going to use your own, make sure its 8-bit (256 colors).

GRUB_TIMEOUT=30 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true # GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="rhgb quiet" GRUB_DISABLE_RECOVERY="true" GRUB_BACKGROUND="/boot/grub2/themes/system/background.png"

Run mkconfig

grub2-mkconfig -o /boot/grub2/grub.cfg

Make sure it says it found your background. Commenting out GRUB_TERMINAL_OUTPUT made it find it for me. Reboot to see your creation:

reboot