#!/bin/sh

post_upgrade() {
  # We used to package /boot/grub/grub.cfg, but there is no reason to.
  # Remove the file from package, but move real file back in place.
  if [ ! -f /boot/grub/grub.cfg -a -f /boot/grub/grub.cfg.pacsave ]; then
    mv /boot/grub/grub.cfg.pacsave /boot/grub/grub.cfg
  fi
}

post_install() {
  cat << 'EOM'
Generate your dom0 bootloader configuration with:
  grub-mkconfig -o /boot/grub/grub.cfg

Generate a simple pvgrub2 image with:
  cat > grub.cfg <<EOF
    search -s root -f /boot/grub/grub.cfg
    configfile /boot/grub/grub.cfg
  EOF

  grub-mkstandalone -O x86_64-xen -o /usr/lib/xen/boot/pvgrub2-x86_64-xen grub.cfg

and set the generated image as the value for the kernel in the domU config
file. For i386-xen and i386-xen_pvh images, substitute the desired platform
for 'x86_64' in the command above. See https://wiki.xen.org/wiki/PvGrub2 for
more possibilities.
EOM
}