[Guide] Ubuntu Lucid 10.04 Defy CHROOT port

#!/bin/sh
xrdb $HOME/.Xresources
xsetroot -solid grey
#x-terminal-emulator -geometry 80×24+10+10 -ls -title “$VNCDESKTOP Desktop” &
#x-window-manager &
export XKL_XMODMAP_DISABLE=1
/etc/X11/Xsession

vncserver -geometry 1280×800

echo " "
echo "Ubuntu Chroot v0.2-anant-netbook"
echo "This process does NOT damage Android OS!"
echo " "
echo "Original Script by Charan Singh"
echo "Modified for Ubuntu Chroot by Max Lee at NexusOneHacks.net"
echo "Xperia Customized by Anant shrivastava http://anantshri.info "
echo " "
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
echo "Cleaning up old Chunks . . ."
rm /system/bin/tuxcmd
rm /system/bin/starttux
rm /system/bin/stoptux
echo "Creating necessary directories"
if [ ! -d /data/local/mnt ]
then
mkdir /data/local/mnt
fi
#copy the files to places
echo "Setting up files"
cp -f starttux /system/bin
cp -f stoptux /system/bin
cp -f tuxcmd /system/bin
echo "Ubuntu is now configure!"
echo " "
echo "to Start ubuntu type 'starttux'"
echo "once ubuntu started use tuxcmd to gain shell"
echo "when you want to shutdown type 'stoptux'"

#Mount SYSTEM RW
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
#exporting useful variables
export kit=/sdcard/ubuntu
export bin=/system/bin
export mnt=/data/local/mnt
export PATH=$bin:/usr/bin:/usr/sbin:/bin:$PATH
export TERM=linux
export HOME=/root
# Mounting Image to the farthest loop point
# FIXME : check if mount sucessfull otherwise abort whole process.
mknod /dev/block/loop255 b 7 255
busybox losetup /dev/block/loop255 $kit/ubuntu.img
busybox mount -t ext2 /dev/block/loop255 $mnt
mount -t devpts devpts $mnt/dev/pts
mount -t proc proc $mnt/proc
mount -t sysfs sysfs $mnt/sys
# Mounting SD Card inside the CHROOT
busybox mount -o bind /sdcard /data/local/mnt/sdcard
#seting environment
sysctl -w net.ipv4.ip_forward=1
echo "Setting /etc/resolv.conf to Google Open DNS 8.8.8.8 and 8.8.4.4"
echo "nameserver 8.8.8.8" > $mnt/etc/resolv.conf
echo "nameserver 8.8.4.4" >> $mnt/etc/resolv.conf
echo "Setting localhost on /etc/hosts "
echo "127.0.0.1 localhost" > $mnt/etc/hosts
echo "Brought to you by NexusOneHacks.net and the open source community! "
echo "Customized by Anant shrivastava http://anantshri.info"
echo "Ubuntu configured to use it just type 'tuxcmd'"

mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
export kit=/sdcard/ubuntu
export bin=/system/bin
export mnt=/data/local/mnt
export PATH=$bin:/usr/bin:/usr/sbin:/bin:$PATH
export TERM=linux
export HOME=/root
echo "Brought to you by NexusOneHacks.net and the open source community! "
echo "Customized by Anant shrivastava http://anantshri.info"
echo " "
busybox chroot $mnt /bin/bash

#Cleanup
#After exit command is executed clear it all up
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
export kit=/sdcard/ubuntu
export bin=/system/bin
export mnt=/data/local/mnt
export PATH=$bin:/usr/bin:/usr/sbin:/bin:$PATH
export TERM=linux
export HOME=/root
echo "Cleaning the Ubuntu leftover and returning back the memory to Android."
echo "by Anant Shrivastava http://anantshri.info "
echo "Shutting down Ubuntu"
sync
busybox umount -l $mnt/sdcard
busybox umount -l $mnt/dev/pts
busybox umount -l $mnt/proc 
busybox umount -l $mnt/sys 
busybox umount -l $mnt
busybox losetup -d /dev/block/loop255
mount -o remount,ro -t yaffs2 /dev/block/mtdblock3 /system
echo " "
echo "Please reboot to properly unmount Ubuntu"
echo "Specially If you recieved an error before this line"