#!/bin/bash # grub2-sign # Signs everything important in /boot. Depends on grub2-verify. # Author: Bandie # Licence: GNU-GPLv3 function sign(){ for f in $(find /boot -iname "efi" -prune -o -type f -print) do if gpg --detach-sign $f then echo $f signed. else return 1 fi done return 0 } # Running grub2-verify first to prevent bad people and double signing echo "Running grub2-verify to check if everything is unsigned..." >&2 grub-verify if (( $? < 2 )); then echo "Run grub2-unsign first." >&2 exit 1 fi if ! sign then sign else echo -e "\nDone!" fi