#!/bin/bash # grub2-unsign # Unsigns every file in /boot. Depends on grub2-verify # Author: Bandie # Licence: GNU-GPLv3 # Check if something is wrong if ! grub2-verify; then printf '%s\n' "grub2-verify has detected a one or more bad signatures." "Please check for malicious software before you're unsigning everything!" >&2 exit 1 fi # Then remove the signatures. find /boot -name '*.sig' -exec rm -- '{}' + echo "GRUB2 unsigned. WARNING: If you want to deactivate GRUB2's signature feature, change the check_signatures variable in the headers file!" exit 0