Update Script

#!/bin/sh
##################################
echo "------ INIT SEQUENCE ------"
FU_ROOTFS_VERSION=`cat /version`
ROOTFS_TMP_DIR=/tmp/rootfs
. /install_script/constant.txt
_UPDATE_FN_=`nvpstr ufn`
if [ "$?" != 0 ]; then
	echo "nvpstr(ufn) error"
	fwfb /root/fwup_err.rgb
	exit 1
if [ "$FU_ROOTFS_VERSION" \< "20110328A" ]; then
	lcdmsg -c -f /usr/local/bin/font_08x12.bmp -l 0,0 \
	"please update\n\n  XX version\n\nbefore this verison."
	sleep 10
	exit 0
####################################################
echo "------ FORMAT AND MOUNT ROOT PARTITION ------"
mkfs.ext2 -b 4096 $COMMON_ROOTFS_PARTITION
if [ "$?" != 0 ]; then
	echo "mkfs(root) error"
	fwfb /root/fwup_err.rgb
	exit 1
mkdir $ROOTFS_TMP_DIR
if [ "$?" != 0 ]; then
	echo "mkdir(tmp) error"
	fwfb /root/fwup_err.rgb
	exit 1
mount -t ext2 $COMMON_ROOTFS_PARTITION $ROOTFS_TMP_DIR
if [ "$?" != 0 ]; then
	echo "mount(root) error"
	fwfb /root/fwup_err.rgb
	exit 1
#################################################
echo "------ WRITE COMMON KERNEL & ROOTFS ------"
fwpup -f /contents/$_UPDATE_FN_.UPG -k 1 -r 2 | tar -C $ROOTFS_TMP_DIR -xvzf -
if [ "$?" != 0 ]; then
	echo "fwpup error"
	fwfb /root/fwup_err.rgb
	exit 1
echo "ldconfig..."
ldconfig -r $ROOTFS_TMP_DIR
if [ "$?" != 0 ]; then
	echo "fwpup error"
	fwfb /root/fwup_err.rgb
	exit 1
echo "mkdevs..."
$ROOTFS_TMP_DIR/dev/mkdevs
if [ "$?" != 0 ]; then
	echo "mkdevs error"
	fwfb /root/fwup_err.rgb
	exit 1
###########################################
echo "------ UNMOUNT ROOT PARTITION ------"
sync
if [ "$?" != 0 ]; then
	echo "sync error"
	fwfb /root/fwup_err.rgb
	exit 1
umount $ROOTFS_TMP_DIR
if [ "$?" != 0 ]; then
	echo "umount(mnt) error"
	fwfb /root/fwup_err.rgb
	exit 1
###########################################
echo "------ UPDATED!! ------"
exit 0