#!/bin/bash



# To use this script first Flash your sd-card using
#Create-sdcard script in SDK located in bin directory.
#Then tar rootfs and copy the tarball in rootfs partition
#of sd-card in any subdirectory.Copy this script to sd-card
#and run it in the target machine using sd-card. 
#Enter yes if anything is prompted.   




cd /

umount -f /dev/mmcblk1p1

umount -f /dev/mmcblk1p2

cat << EOM

==============================================================================
                        Current partitions
==============================================================================

EOM

fdisk -l /dev/mmcblk1

cat << EOM

==============================================================================
                        Removing all partitions
==============================================================================

EOM

echo "....WARNING...."

echo "Continuing will Erase all the current data and Partitions in EMMC"

CONTINUE=0

while [ $CONTINUE -eq 0 ]

do
read -p "Do You Want To Continue [y/n] :  " CHOICE
    if [ $CHOICE = 'y' ]
    then 
        CONTINUE=1
    elif [ $CHOICE = 'n' ]
    then
	CONTINUE=-1
    else
	echo "Wrong Choice...Enter y or n"
	CONTINUE=0
    fi
done

if [ $CONTINUE = -1 ]
    then
	exit
fi

 
fdisk /dev/mmcblk1 << EEOF
d
2
d
w
EEOF

echo ""
echo "All partitions removed."
echo ""
echo "" 

cat << EOM

==============================================================================
                              Creating new partitions
==============================================================================

EOM

parted -s /dev/mmcblk1 mklabel msdos

parted -s /dev/mmcblk1  unit cyl mkpart primary fat32 -- 0 9

parted -s /dev/mmcblk1  set 1 boot on

parted -s /dev/mmcblk1 unit cyl mkpart primary ext2 -- 9 -2

cat << EOM

==============================================================================      
                               New partitions
==============================================================================

EOM
fdisk -l /dev/mmcblk1                                       

mkfs.vfat -F 32 -n "boot" /dev/mmcblk1p1

mkfs.ext3 -L "rootfs" /dev/mmcblk1p2

sync
sync


if [ -d /temp1 ]
    then 
	rm -rf temp1
fi


mkdir temp1

cd temp1

mkdir boot

mkdir rootfs

mkdir temp

rm -rf boot/*

rm -rf rootfs/*


mount -t vfat /dev/mmcblk1p1 boot/

mount -t ext3 /dev/mmcblk1p2 rootfs/

mount -t vfat /dev/mmcblk0p1 temp/

cat << EOM

=============================================================================
                                 COPYING U-BOOT
=============================================================================

EOM

cp -R temp/* boot/


echo "copying MLO"

echo "copying u-boot"

echo "copying uEnv.txt"

echo "done.."


ENTERCORRECTLY=0

while [ $ENTERCORRECTLY -ne 1 ]
do

read -p "Enter the complete path to rootfs tarball : " ROOTFSPATH



	if [ -d $ROOTFSPATH ]

	then
	   ENTERCORRECTLY=1

	else

	echo "Is not a directory OR dirctory does not exist...Enter complete path to directory containing Rootfs"

	   continue
	fi 
done

TARBALL=`ls $ROOTFSPATH | grep .tar.gz | awk '{ print $1 }'`

cat << EOM

==========================================================================
	               EXTRACTING ROOTFS ... WILL TAKE SOME TIME
==========================================================================

EOM

if [ -n $TARBALL ]
 then
	echo "The rootfs tarball is: " $TARBALL

	tar -zxf $ROOTFSPATH/$TARBALL -C rootfs/

else
	echo "Tarball does not exist"

	echo "Exiting..."
fi

umount -f boot

umount -f rootfs

umount -f temp

rm -rf boot

rm -rf rootfs

rm -rf temp

cd ..

rm -rf temp1

cat << EOM

===========================================================================
                         ...FINISHED...
===========================================================================

EOM