appender3

#!/bin/bash

if [ -z $1 ]; then
	echo "Loader file name not defined!";
	exit 0;
fi

if [ -z $2 ]; then
	echo "Wellcome file name not defined!";
	exit 0;
fi

if [ -z $3 ]; then
	echo "Kernel file name not defined!";
	exit 0;
fi

if [ ! -f $1 ]; then
	echo "File $1 does not exist!";
	exit 0;
fi

if [ ! -f $2 ]; then
	echo "File $2 does not exist!";
	exit 0;
fi

if [ ! -f $3 ]; then
	echo "File $3 does not exist!"
	exit 0;
fi

src_size=$(ls -l $1 | cut -d " " -f5);
max_size=512;

if [ "$src_size" -gt "$max_size" ]; then
	echo "Bootloader is bigger than 512 bytes!";
	exit 0;
fi



touch myos.img;

#bootloader on the first sector
cat $1 >> myos.img;

#insert data in the second sector
#truncate --size=512 myos.img
#echo "MyOS v.0.1 created by Ion Dodon (FAF-172)"$'\r' >> myos.img;
#date >> myos.img;

#truncate --size=$(echo "ibase=$3; FF" | bc) myos.img;
#truncate --size=1024 myos.img

#wellcome draw on the third sector
#cat $2 >> myos.img;

#truncate --size=3072 myos.img;

#Kernel on the 7'th sector
#cat $3 >> myos.img;




#fill 0 till 1791 sector
truncate --size=916480 myos.img

#bootloader on the first sector in my range
cat $1 >> myos.img;

#leave second sector in my range
truncate --size=917504 myos.img

#wellcome
cat $2 >> myos.img;

#wellcome should take 4 sectors in my range
truncate --size=921600 myos.img

#Kernel
cat $3 >> myos.img;

#about on the last sector in my range
truncate --size=941568 myos.img
echo "MyOS v.0.1 created by Ion Dodon (FAF-172)"$'\r' >> myos.img;
date >> myos.img;


truncate --size=1474560 myos.img;

echo "Setting full permissions for myos.img";
sudo chmod 777 myos.img;