#! /bin/sh
#
# move root-filesystem to aufs filesystem
{
echo -e "\nCopy initramfs to aufs: "

mount /proc
mount /sys

busybox --install -s
mdev -s
test -e /dev/cdrom -a ! -e /dev/dvd && cp -a /dev/cdrom /dev/dvd

# copy root filesystem to tmpfs
mkdir /mnt/system
mount -n tmpfs /mnt/system -t tmpfs
find / -maxdepth 1 ! -wholename / ! -name dev ! -name mnt ! -name proc ! -name sys -exec cp -a {} /mnt/system ";"
mkdir -p /mnt/system/dev /mnt/system/mnt /mnt/system/proc /mnt/system/sys
chown -Rh root:root /mnt

dir=${dir-mld}
dev=${dev-$(blkid | grep $id | sed "s/:.*//")}
if [ -z "$dev" ];then
	echo -e "System device not found\n  Maybe it's a slow USB device. Try again in 10 Seconds..."
	sleep 10
	dev=$(blkid | grep $id | sed "s/:.*//")
	if [ -z "$dev" ];then
		echo -e "System device not found"
		sh
	fi
fi
dev=${dev##*/}

echo "Import system directory from /mnt/$dev/$dir: "
mkdir /mnt/$dev
mount /dev/$dev /mnt/$dev
if [ "$(mount | grep /dev/$dev | cut -d " " -f5)" = "ext3" ];then
	mkdir /mnt/aufs
	mount -n -t aufs -o dirs=/mnt/$dev/$dir:/mnt/system aufs /mnt/aufs
#	mount -n -t aufs -o dirs=/mnt/$dev/$dir:/mnt/system,create=tdp:td aufs /mnt/aufs
else
	mkdir /mnt/tmp /mnt/aufs
	mount -n tmpfs /mnt/tmp -t tmpfs
	mount -n -t aufs -o dirs=/mnt/tmp:/mnt/$dev/$dir:/mnt/system aufs /mnt/aufs
#	mount -n -t aufs -o dirs=/mnt/tmp:/mnt/$dev/$dir:/mnt/system,create=tdp:td aufs /mnt/aufs
fi

mount -n tmpfs /mnt/aufs/tmp -t tmpfs
mount -n tmpfs /mnt/aufs/dev -t tmpfs
cp -a /dev/* /mnt/aufs/dev/

# make all filesystems available after chroot
mkdir -p /mnt/aufs/mnt/$dev
mount -n -o move /mnt/$dev /mnt/aufs/mnt/$dev
#mkdir -p /mnt/aufs/mnt/system /mnt/aufs/mnt/tmp
#mount -n -o move /mnt/system /mnt/aufs/mnt/system
#mount -n -o move /mnt/tmp /mnt/aufs/mnt/tmp 2>/dev/null

while ! umount /sys; do
	sleep 1
done
umount /proc

echo "/mnt/$dev/$dir" > /tmp/sys_dir
} 2>&1 | tee -a /var/log/sysinit
mv /var/log/sysinit /mnt/aufs/var/log/sysinit

export sys_dir=$(cat /tmp/sys_dir)

exec run_init /mnt/aufs /sbin/init