#!/bin/bash

before_install_hook() {
  mount -o remount,rw /boot
}

after_install_hook() {
  summen="$(sha512sum /boot/grub/grub.cfg /boot/vmlinuz-*)"
  original=$(mount | grep '^[^ ]* on /boot' | awk '{print $1;}')
  kopie=$(mdadm --detail /dev/disk/by-uuid/080c93f3-0c76-4821-b72f-3d1b7d807a70 | tail -n2 | sed 's/2$/1/' | grep -v "${original}" | sed 's/.* //')
  echo "${summen}"
  echo "${original}"
  echo "${kopie}"
  umount /boot || exit 1
  dd if="${original}" of="${kopie}" bs=1M || (sync; mount /boot; exit 1) || exit 1
  sync || exit 1
  mount "${kopie}" /boot -o ro || exit 1
  echo -ne "${summen}" | sha512sum -c || exit 1
}