#!/bin/sh
#
# Ensure you've loaded the loop module with max_part=15

usage() {
	echo "Usage: $0 <rootdir> <imgfile>"
	exit
}

if test "$1" = ""; then
	usage
fi

if test "$2" = ""; then
	usage
fi

set -e -x

root=$1
img=$2
mnt="/mnt/morpheus"

fallocate -l 2G $img || dd if=/dev/zero of=$img bs=512M count=4
(
cat << EOF
o
n
p
1


a
1
w
EOF
) | fdisk $img

lodev=$(losetup -f)
losetup "$lodev" "$img"
partition="$lodev"p1
mkfs.ext4 -L MORPHEUS $partition
mkdir -p "$mnt"
mount $partition "$mnt"
rmdir "$mnt/lost+found"

fakeroot cp -arP "$root"/* "$mnt"
extlinux --install "$mnt/boot"

cat stuff/mbr.bin > $lodev
sync

umount "$mnt"
sleep 3
losetup -d $lodev