#!/bin/sh

if [ $# != 1 ]; then
    echo " "
    echo "Usage: $0 fichier_image"
    echo " "
    exit
fi

image_file=$1
bootmountpoint=/mnt/boot/
echo " "
mkdir $bootmountpoint
ls $bootmountpoint 2>/dev/null >/dev/null
if [ $? != 0 ]; then
    echo "Erreur dans la creation du point de montage"
    echo "Le programme de flashage doit quitter"
    echo "(verifiez d'avoir bien lancé le programme en root)"
    echo " "
    exit
fi



romfs_device=""

if /bin/grep -q root=/dev/hda2 /proc/cmdline; then
  romfs_device="/dev/hda3"
  grub_entry_no=1
fi
if /bin/grep -q root=/dev/hda3 /proc/cmdline; then
  romfs_device="/dev/hda2"
  grub_entry_no=0
fi

if /bin/grep -q root=/dev/hdc2 /proc/cmdline; then
  romfs_device="/dev/hdc3"
  grub_entry_no=1
fi

if /bin/grep -q root=/dev/hdc3 /proc/cmdline; then
  romfs_device="/dev/hdc2"
  grub_entry_no=0
fi

if [ -z $romfs_device ]; then
  echo "Cannot find the device to erase"
  exit 0
fi

if [ ! -w $romfs_device ]; then
  echo "Cannot write onto the device (${romfs_device})"
  exit 0
fi

echo
echo "Mise à jour en cours..."
echo

cat "${image_file}" > ${romfs_device}
mount /dev/hda1 "${bootmountpoint}"

cat > ${bootmountpoint}/boot/grub/default <<__EOF
${grub_entry_no} 10
#
#
#
#
#
#
#
#
#
#
#
#
# WARNING: If you want to edit this file directly, do not remove any line
# from this file, including this warning. Using \`grub-set-default\' is
# strongly recommended.
__EOF


echo
echo "Fini !!! Vous pouvez maintenant redemarrer votre gate."
echo

exit 0