#! /bin/sh
#
# move root-filesystem to aufs filesystem
{
. /etc/init.d/rc.functions

mount proc
mount sys

busybox --install -s
mknod -m 600 /dev/tty5 c 4 5
mknod -m 600 /dev/console c 5 1 2>/dev/null

date

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

echo "Preparing root as aufs: "
mkdir /mnt/tmpfs /mnt/root
mount -n tmpfs /mnt/tmpfs -t tmpfs
mkdir -p /mnt/tmpfs/tmp /mnt/tmpfs/dev /mnt/tmpfs/var/run
mount -n root /mnt/root -t aufs -o dirs=/mnt/tmpfs=rw:/mnt/rootfs=ro,create=tdp:t,cpup=tdp:t #,udba=inotify
cp -a /dev/* /mnt/root/dev/
chmod 1777 /mnt/root/tmp
check_status

# make filesystems available after chroot (for debuging)
mkdir -p /mnt/root/mnt/rootfs /mnt/root/mnt/tmpfs
mount -n -o move /mnt/rootfs /mnt/root/mnt/rootfs
mount -n -o move /mnt/tmpfs /mnt/root/mnt/tmpfs

while ! umount sys 2>/dev/null; do
	sleep 1
done
umount proc
} 2>&1 | tee -a /var/log/sysinit
mv /var/log/sysinit /mnt/root/var/log/sysinit
mv /var/spool/bootstep /mnt/root/var/spool/bootstep

exec run_init /mnt/root /sbin/init