[Whitefox]

From your indication I wrote this script, should this work for our purpose ?

#!/bin/bash
src=$1
dst=$2
tmp1="./tmp1.img"
tmp2="./tmp2.img"

if test $# -lt 2 
then
	echo "Missing parameter"
	exit
fi
size=`wc -c $src | cut -d' ' -f1 ` # in bytes
size=$[ ($size+1024) / 1024 ]
i=0
echo "Image size $size kb"
while test  $size -gt $i
do	
	echo -e "\t$i"	
	#Write from the image to the partition
	dd if=$src of=$dst bs=1024 count=1 skip=$i seek=$i
	#Copy the last read kb to a temp file
	dd if=$src of=$tmp1 bs=1024 count=1 skip=$i
	#Copy the last written kb to another file
	dd if=$dst of=$tmp2 bs=1024 count=1 skip=$i
	#Compare the difference between the files
	val=`diff $tmp1 $tmp2| wc -l` 
	if test $val -ne 0
	then
		echo -e "\tError at $i"
		base64 $tmp1 | head
		echo ""
		base64 $tmp2 | head
	fi
	i=$[$i+1]
done
rm $tmp1 
rm $tmp2