#!/bin/sh REREQ="" prereqs() { echo "$PREREQ" } error_exit() { echo "[ERROR] $1" exit 1 } case $1 in prereqs) prereqs exit 0 ;; esac . /usr/share/initramfs-tools/hook-functions echo "> Grub File Signing..."; /usr/share/ubuntu-system-adjustments/systemd/start; /usr/local/sbin/sign-boot; echo "> Completed Signing."; exit 0;