proot Debian

#!/data/data/com.termux/files/usr/bin/sh
# https://wiki.debian.org/ChrootOnAndroid
export SDCARD=/mnt/sdcard
#export ROOT=/data/data/jackpal.androidterm
export ROOT=/dara/data/com.termux/files/debian/stable
#PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH:kbox4/bin
RootType='proot'
#export HOME=/root
#mount -o remount,exec,dev,suid $SDCARD

#Android doesn't apear to have a resolv.conf
#cp /etc/resolv.conf etc/resolv.conf
if [ "$RootType" = "chroot" ]; then
  for f in dev proc sys ; do #dev/pts
      mount -o bind /$f $ROOT/$f ;
  done
  # https://wiki.archlinux.org/index.php/change our z
cp /etc/resolv.conf etc/resolv.conf
  #chroot #$ROOT /bin/bash -l debootstrap/debootstrap --second-stage
elif [ "RootType" = "proot" ]; then
  proot -0 -r ~/stable -b /dev/ -b /sys/ -b /proc/ \
        -b /data/data/com.termux/files/home /usr/bin/env \
        -i HOME=/root TERM="xterm-256color" PS1='[root@stable \W]$ ' \
        PATH=/bin:/usr/bin:/sbin:/usr/sbin:/bin /bin/bash --login
fi