#!/bin/sh
set -e

# older versions of grub2 do not have this yet (LP: #459080)
if [ ! -e /usr/lib/grub/grub-mkconfig_lib ]; then
    echo "no grub-mkconfig_lib, exiting"
    exit 0
fi

. /usr/lib/grub/grub-mkconfig_lib

# We can't cope with loop-mounted devices here.
case ${GRUB_DEVICE_BOOT} in
  /dev/loop/*|/dev/loop[0-9])
    exit 0
  ;;
esac

if test -e /boot/memtest86+; then
  MEMTESTPATH=$( make_system_path_relative_to_its_root "/boot/memtest86+" )
  echo "Found memtest86+ image: $MEMTESTPATH" >&2
  cat << EOF
menuentry "Memory test (memtest86+)" {
EOF
  prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | sed -e "s/^/\t/")"
  printf '%s\n' "${prepare_boot_cache}"
  cat << EOF
	linux16	$MEMTESTPATH
}
menuentry "Memory test (memtest86+, serial console 115200)" {
EOF
  printf '%s\n' "${prepare_boot_cache}"
  cat << EOF
	linux16	$MEMTESTPATH console=ttyS0,115200n8
}
EOF
fi