#!/system/bin/sh

mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /
mkdir /mnt/ubuntu
export mnt=/mnt/ubuntu
export PATH=/usr/bin:/usr/sbin:/bin:$PATH
export TERM=linux
export HOME=/root
export kit=/sdcard
export USER=root
export loopdev=/dev/block/loop99

echo "SETTING UP LOOP DEVICE"
mknod /dev/block/loop99 b 7 99

losetup $loopdev $kit/ubuntu.img
mount -t ext2 $loopdev $mnt
mount -t devpts devpts $mnt/dev/pts
mount -t proc proc $mnt/proc
mount -t sysfs sysfs $mnt/sys

echo " "
echo "Type EXIT to end session"
echo "Make sure you do a proper EXIT for a clean umount!"
echo " "
echo "Please reboot your device when you finished your work."

chroot $mnt /bin/bash

busybox umount -f /mnt/ubuntu/dev/pts /mnt/ubuntu/proc /mnt/ubuntu/sys