Comment 4 for bug 1316968

As workaround we inserted in the file "10_lupin" this supplement below line containing:

  echo " insmod gzio" | sed "s/^/$submenu_indentation/"

*****
  host_device=$( mount | grep "/host" | cut -d " " -f 1 )
  part_table=$( grub-probe --device $host_device --target=partmap )
  if [ ! "x$part_table" = "x" ]; then
  echo " insmod part_$part_table" | sed "s/^/$submenu_indentation/"
  fi
*****

whole information see attachment = revised file "10_lupin"