linux on android startup script

LINUXROOT=/sd-ext
BUSY=/system/xbin/busybox
CHR=/system/xbin/chroot

export PATH=/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin

mount -o remount,rw /
mkdir $LINUXROOT

# mount devices and such
losetup /dev/block/loop0 /sdcard/debian.raw
mount -t ext2 /dev/block/loop0 $LINUXROOT

mount -o bind /proc $LINUXROOT/proc
mount -o bind /sys $LINUXROOT/sys
mount -o bind /dev $LINUXROOT/dev
mount -o bind /dev/pts $LINUXROOT/dev/pts


export TMPDIR=/tmp
export USER=root
export HOME=/root
export SHELL=/bin/bash

export TERM=linux
export LC_ALL=C
export LANGUAGE=C
export LANG=C
export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/sbin:/usr/local/bin

# startup crap
#$BUSY $CHR $LINUXROOT rm /tmp/.X*-lock
#$BUSY $CHR $LINUXROOT rm -rf /tmp/.X11-unix/
# vnc server
#$BUSY $CHR $LINUXROOT su - user -c "tightvncserver :1"

# start DBus
$BUSY $CHR $LINUXROOT service dbus start

# ssh server
$BUSY $CHR $LINUXROOT /usr/sbin/sshd