#!/bin/bash
#
# Raspberry Pi Setup Script
# Donald Burr <dburr@vctlabs.com>

# set to YES for debugging
DEBUG="NO"
# use older motion-mmal with its own built-in raspi camera driver
USE_MMAL_MOTION="NO"
# use newer (third party) version of node.js
USE_THIRD_PARTY_NODE_JS="YES"
# install newer (third party) ffmpeg in /usr?
INSTALL_FFMPEG_IN_USR="NO"
# disable the red LED that turns on when the camera module is active?
DISABLE_CAMERA_LED="YES"
# also install PHP when installing lighttpd?
INSTALL_PHP="NO"

# store location that this script is in
D="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# convenience function, install a package but only if it isn't already present
function install_package
{
  local PACKAGE=$1
  if dpkg -s $PACKAGE >/dev/null 2>&1; then
    echo "skipping install of $PACKAGE, it is already present"
  else
    echo "installing $PACKAGE"
    sudo aptitude -q=2 -y install $PACKAGE
  fi
}

# ffmpeg setup code is broken out into its own function because it
# is used in 2 spots in this script
function install_ffmpeg
{
  if [ "$DEBUG" = "YES" ]; then
    echo "skipping install of ffmpeg, we are in DEBUG Mode"
    echo "NOTE: this may break other apps that depend on it."
  elif hash ffserver 2>/dev/null; then
    echo "skipping install of ffmpeg, it is already present"
  else
    echo "*** building current ffmpeg from source ***"
    mkdir $HOME/src
    cd $HOME/src
    git clone git://source.ffmpeg.org/ffmpeg.git
    cd ffmpeg
    if [ "$INSTALL_FFMPEG_IN_USR" = "YES" ]; then
      ./configure --prefix=/usr
    else
      ./configure
    fi
    make
    sudo make install
    echo "*** setting up symlinks ***"
    if [ "$INSTALL_FFMPEG_IN_USR" != "YES" ]; then
      for COMMAND in ffmpeg ffprobe ffserver; do
        sudo rm -f /usr/bin/$COMMAND && sudo ln -sf ../local/bin/$COMMAND /usr/bin/$COMMAND
      done
    fi
  fi
}

# start of script

if ! dpkg -s screen >/dev/null 2>&1; then
  echo "*** BEGINNING RPI SETUP ***"
  echo "This script assumes you have gone through \`raspi-config' (must be run as root)"
  echo "and configured all the values there, especially Internationalization,"
  echo "Keyboard and the Raspberry Pi Camera (if one is installed.)"
  echo ""
  echo "If you haven't performed those steps, hit Ctrl-C now and do so, then"
  echo -n "re-run this script.  Otherwise, press Return to proceed. "
  read BLAH
  echo ""
	echo "*** performing initial setup ***"
	sudo aptitude -y update
  for PKG in screen mosh; do
	  install_package $PKG
  done

	if grep -q raspberrypi /etc/hostname; then
	  echo "You still have the default hostname set.  We recommend changing the"
    echo "hostname so that your Pi can be uniquely identified."
	  echo "If you wish to change it, enter a new hostname now, otherwise"
	  echo -n "just press Return: "
	  read NEW_HOSTNAME
	  if [ ! -z "$NEW_HOSTNAME" ]; then
	    echo "$NEW_HOSTNAME" > /tmp/HOSTNAME.$$
	    sudo rm -f /etc/hostname
      sudo mv /tmp/HOSTNAME.$$ /etc/hostname
	    sudo chown root:root /etc/hostname
	    sudo chmod 644 /etc/hostname
      sudo /etc/init.d/hostname.sh
	  fi
	fi

  echo -n "Would you like to set up a Wi-Fi adapter? [yn] "
  read WIFI_YORN
  if [ "$WIFI_YORN" = "y" ]; then
    echo "Please make sure the Wi-Fi adapter is plugged in, then at the prompt below,"
    echo "enter which type of adapter you wish to set up."
    echo ""
    echo "1. TP-LINK TL-WN725N"
    echo "2. Edimax EW-7811Un"
    echo ""
    WIFI_ADAPTER=0
    VALID="NO"
    while [ "$VALID" = "NO" ]; do
      echo -n "Your choice: "
      read WIFI_ADAPTER
      if ! [[ "$WIFI_ADAPTER" =~ ^[0-9]+$ ]]; then
        echo "Error, that is not a valid answer."
      elif [ "$WIFI_ADAPTER" -lt 1 -o "$WIFI_ADAPTER" -gt 2 ]; then
        echo "Error, that is not a valid answer."
      else
        VALID="YES"
      fi
    done
    if [ $WIFI_ADAPTER -eq 1 ]; then
      # TP-link
      SKIP_RPI_UPDATE="YES"
      KERNEL_DATE_LONG=`uname -v | sed -e 's/^.*PREEMPT //g'`
      KERNEL_DATE=`date -d"$KERNEL_DATE_LONG" +%Y%m%d`
      if [ ! -f "$D/drivers/8188eu-$KERNEL_DATE.tar.gz" ]; then
        echo "Could not find a driver matching your kernel version.  Will attempt to"
        echo "fetch one now."
        cd $D/drivers
        wget https://dl.dropboxusercontent.com/u/80256631/8188eu-$KERNEL_DATE.tar.gz
      fi
      if [ -f "$D/drivers/8188eu-$KERNEL_DATE.tar.gz" ]; then
        mkdir /tmp/wifi.$$
        cd /tmp/wifi.$$
        tar xzf $D/drivers/8188eu-$KERNEL_DATE.tar.gz
        sudo install -p -m 644 8188eu.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless
        sudo insmod /lib/modules/`uname -r`/kernel/drivers/net/wireless/8188eu.ko
        sudo depmod -a
        PROCEED_WITH_WIFI_SETUP="YES"
      else
        echo "ERROR: could not find a version of the TP-link driver for your kernel."
        echo "Cannot proceed with wifi setup."
        PROCEED_WITH_WIFI_SETUP="NO"
      fi
    elif [ $WIFI_ADAPTER -eq 2 ]; then
      # edimax
      # no further configuration necessary, the driver is already in the kernel
      SKIP_RPI_UPDATE="NO"
      PROCEED_WITH_WIFI_SETUP="YES"
    else
      # fallthrough, we can't proceed
      SKIP_RPI_UPDATE="NO"
      PROCEED_WITH_WIFI_SETUP="NO"
    fi

    # the rest is common to all wifi adapters
    if [ "$PROCEED_WITH_WIFI_SETUP" = "YES" ]; then
      echo -n "Enter your wireless network's SSID: "
      read SSID
      PASSWORD="foo"
      PASSWORD_TEMP="bar"
      stty -echo
      while [ "$PASSWORD" != "$PASSWORD_TEMP" ]; do
        echo "Note: Only WPA and/or WPA2 passwords are currently supported."
        echo -n "Enter your wireless network's password: "
        read PASSWORD
        echo
        echo -n "Re-enter for verification: "
        read PASSWORD_TEMP
        echo
        if [ "$PASSWORD" != "$PASSWORD_TEMP" ]; then
          echo "Error: passwords do not match"
        fi
      done
      stty echo
      if [ -f /etc/network/interfaces ]; then
        sudo mv -f /etc/network/interfaces /etc/network/interfaces.bak
      fi
      sudo cp $D/configs/wifi/interfaces /etc/network/interfaces
      sudo chown root:root /etc/network/interfaces
      sudo chmod 644 /etc/network/interfaces
      if [ -f /etc/wpa_supplicant/wpa_supplicant.conf ]; then
        sudo mv -f /etc/wpa_supplicant/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf.bak
      fi
      sudo cp $D/configs/wifi/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf
      sudo sed -i.sed.bak -e "s/#SSID#/$SSID/g" -e "s/#PASSWORD#/$PASSWORD/g" /etc/wpa_supplicant/wpa_supplicant.conf
      sudo chown root:root /etc/wpa_supplicant/wpa_supplicant.conf
      sudo chmod 600 /etc/wpa_supplicant/wpa_supplicant.conf
      echo "*** attempting to bring up Wi-Fi... ***"
      sudo ifdown wlan0
      sudo ifdown --force wlan0
      sudo ifup wlan0
    fi
  fi

  # some wifi adapters haven't yet had their drivers updated to work with
  # the newer kernel installed by rpi-update, so we may have to skip it
  if [ "$SKIP_RPI_UPDATE" != "YES" ]; then
    echo "*** updating RPI firmware ***"
    install_package rpi-update
    sudo rpi-update
  fi

  echo "*** initial setup is now complete."
  echo "*** please reboot your Pi now."
  echo "*** after it has booted up, login and re-run this script."
  exit 0
fi

# initial set up is done

echo "*** Ready to perform second stage of setup."
echo "*** This stage will take a long time.  It is recommended to run this"
echo "*** script within \`screen' so that it will continue running even if"
echo "*** something bad were to occur (lose connection, etc.)"
echo "*** If you are not currently running within \`screen', press Ctrl-C"
echo "*** and re-run this script from within \`screen.'  Otherwise,"
echo -n "*** press Return to proceed: "
read FAILSAFE

echo "*** installing additional packages ***"
for PKG in cifs-utils git pv vim; do
  install_package $PKG
done

# for vlc/gstreamer
echo -n "Install vlc & gstreamer? [yn] "
read INSTALL_VLC
if [ "$INSTALL_VLC" = "y" ]; then
  echo "*** setting up vlc and gstreamer streaming ***"
  for PKG in vlc gstreamer1.0 libasound2-dev; do
    install_package $PKG
  done
fi

# for bluetooth
echo -n "Install bluetooth & ibeacon? [yn] "
read INSTALL_BT
if [ "$INSTALL_BT" = "y" ]; then
  echo "*** setting up bluetooth and ibeacon ***"
  for PKG in bluetooth bluez-utils blueman; do
    install_package $PKG
  done
  sudo cp $D/scripts/ibeacon /usr/bin
  sudo chown root:root /usr/bin/ibeacon
  sudo chmod 755 /usr/bin/ibeacon
  if ! sudo grep -q IBEACON_UUID /etc/sudoers; then
    echo "adding env_keep to sudoers"
    sudo sed -i '/Defaults.*env_reset/a \
Defaults env_keep += "IBEACON_UUID IBEACON_MAJOR IBEACON_MINOR IBEACON_POWER"' /etc/sudoers
  else
    echo "do not need to edit sudoers"
  fi
fi

# set up ffmpeg
# NOTE: we are using the latest version from git instead of the packaged version
# skip when debugging, it takes forever
echo -n "Install latest ffmpeg from source (takes a LONG time, about 4-5 hours)? [yn] "
read INSTALL_FFMPEG
if [ "$INSTALL_FFMPEG" = "y" ]; then
  install_ffmpeg
fi

# set up avahi
# http://holyarmy.org/2008/01/advertising-linux-services-via-avahibonjour/
echo -n "Install avahi (Bonjour/zeroconf autodiscovery)? [yn] "
read INSTALL_AVAHI
if [ "$INSTALL_AVAHI" = "y" ]; then
  echo "*** setting up avahi (bonjour/autodiscovery) ***"
  for PKG in avahi-daemon avahi-utils; do
    install_package $PKG
  done
  for F in $D/configs/avahi/*.service; do
    echo "installing $F..."
    sudo cp $F /etc/avahi/services
  done
  sudo chown root:root /etc/avahi/services/*.service
  sudo chmod 644 /etc/avahi/services/*.service
  sudo service avahi-daemon restart
fi

# set up lighttpd+php
# http://www.instructables.com/id/Setup-a-Raspberry-Pi-PHP-web-server/?ALLSTEPS
echo -n "Install Pi webserver environment (lighttpd+php)? [yn] "
read INSTALL_LIGHTTPD
if [ "$INSTALL_LIGHTTPD" = "y" ]; then
  echo "*** installing lighttpd and php packages ***"
  install_package lighttpd
  if [ "$INSTALL_PHP" = "YES" ]; then
    echo "*** installing php ***"
    for PKG in php5-common php5-cgi php5; do
      install_package $PKG
    done
  fi
  echo "*** enabling lighttpd modules ***"
  MODULES="cgi fastcgi userdir"
  if [ "$INSTALL_PHP" = "YES" ]; then
    MODULES="$MODULES fastcgi-php"
  fi
  for MODULE in $MODULES; do
    echo "...$MODULE"
    sudo lighty-enable-mod $MODULE
  done
  echo "*** enabling cgi-bin directories ***"
  sudo sed -i.bak -e 's/^\($HTTP\["url"\] =~ "\)[^"]*\(".*$\)/\1\/cgi-bin\/\2/' /etc/lighttpd/conf-available/10-cgi.conf
  echo "*** enabling directory listings for directories that lack index.html ***"
  sudo sed -i.bak -e '$adir-listing.activate = "enable"' /etc/lighttpd/lighttpd.conf
  echo "*** setting permissions for /var/www directory ***"
  sudo chown www-data:www-data /var/www
  sudo chmod 775 /var/www
  sudo usermod -a -G www-data pi
  echo "*** installing default www files ***"
  mkdir -p $HOME/public_html
  cp -a $D/configs/lighttpd/* $HOME/public_html
  chmod -R g+w $HOME/public_html
  sudo cp -a $D/configs/lighttpd/* /var/www
  sudo chmod -R g+w /var/www
  if [ -f /var/www/index.html.webroot ]; then
    cp /var/www/index.html.webroot /var/www/index.html
  fi
  if [ -f $HOME/public_html/index.html.home ]; then
    cp $HOME/public_html/index.html.home $HOME/public_html/index.html
  fi
  echo "*** restarting lighttpd ***"
  sudo service lighttpd force-reload
fi

# set up osss
echo -n "Install OSSS (Open Source Surveillance & Security)? [yn] "
read INSTALL_OSSS
if [ "$INSTALL_OSSS" = "y" ]; then
  echo "*** setting up motion ***"
  if [ "$USE_MMAL_MOTION" = "YES" ]; then
    for PKG in libjpeg62 libjpeg62-dev libavformat53 libavformat-dev libavcodec53 libavcodec-dev libavutil51 libavutil-dev libc6-dev zlib1g-dev libmysqlclient18 libmysqlclient-dev libpq5 libpq-dev motion; do
      install_package $PKG
    done
    if [ ! -f /usr/bin/motion.orig ]; then
      echo "*** fetching version of motion patched for raspi camera ***"
      mkdir /tmp/motion.$$
      cd /tmp/motion.$$ && wget https://www.dropbox.com/s/xdfcxm5hu71s97d/motion-mmal.tar.gz  
      tar xzf motion-mmal.tar.gz  
      sudo mv /usr/bin/motion /usr/bin/motion.stock
      sudo cp motion /usr/bin/motion.mmal
      sudo chown root:root /usr/bin/motion.mmal
      sudo chmod 755 /usr/bin/motion.mmal
      sudo ln -sf motion.stock /usr/bin/motion
    fi
    if [ ! -f /etc/motion.conf ]; then
      echo "*** installing motion-mmal config file ***"
      sudo cp $D/configs/motion/motion-mmal.conf /etc/motion.conf
      sudo sed -i.sed.bak "s/^.*\btext_left\b.*$/text_left `hostname`/" /etc/motion.conf
      sudo chown root:root /etc/motion.conf
      sudo chmod 644 /etc/motion.conf
    fi
  else
    for PKG in motion; do
      install_package $PKG
    done
    if [ ! -f /etc/motion/motion.conf.orig ]; then
      echo "*** installing motion config file ***"
      sudo mv /etc/motion/motion.conf /etc/motion/motion.conf.orig
      sudo cp $D/configs/motion/motion.conf /etc/motion/motion.conf
      sudo sed -i.sed.bak "s/^.*\btext_left\b.*$/text_left `hostname`/" /etc/motion/motion.conf
      sudo chown root:motion /etc/motion/motion.conf
      sudo chmod 644 /etc/motion/motion.conf
    fi
    if ! grep -q bcm2835-v4l2 /etc/modules; then
      echo "*** setting camera driver to load at boot (and loading it now) ***"
      sudo sed -i.bak -e "\$a\
bcm2835-v4l2" /etc/modules
      sudo modprobe bcm2835-v4l2
    fi
  fi
  if [ ! -f /var/log/motion ]; then
    echo "*** creating motion log file ***"
    sudo touch /var/log/motion.log
    sudo chown motion:motion /var/log/motion.log
    sudo chmod 644 /var/log/motion.log
  fi
  if [ ! -d /var/spool/motion ]; then
    echo "*** creating motion spool directory ***"
    sudo mkdir /var/spool/motion
    sudo chown motion:motion /var/spool/motion
    sudo chmod 755 /var/spool/motion
  fi
  if ! grep -q "start_motion_daemon.*=.*yes" /etc/default/motion; then
    echo "*** enabling auto-run motion at startup ***"
    sudo sed -i 's/^\(start_motion_daemon\s*=\s*\).*$/\1yes/' /etc/default/motion
  fi
  if [ ! -d /home/motion ]; then
    echo "*** creating motion home directory ***"
    sudo mkdir /home/motion
    sudo chown motion:motion /home/motion
  fi
  echo "*** setting up node.js ***"
  if [ "$USE_THIRD_PARTY_NODE_JS" = "YES" ]; then
    echo "Downloading node.js..."
    mkdir -p /tmp/node.$$
    cd /tmp/node.$$ && curl -L# https://gist.github.com/raw/3245130/v0.10.24/node-v0.10.24-linux-arm-armv6j-vfp-hard.tar.gz -o node-v0.10.24-linux-arm-armv6j-vfp-hard.tar.gz
    echo "Installing node.js..."
    pv /tmp/node.$$/node-v0.10.24-linux-arm-armv6j-vfp-hard.tar.gz | sudo tar --owner=root --group=root -C /usr/ -xzf - --strip=1
  else
    for PKG in nodejs npm; do
      install_package $PKG
    done
  fi
  if [ "$USE_THIRD_PARTY_NODE_JS" != "YES" ]; then
    # raspbian standard node needs special ssl configuration
    #
    #echo "*** upgrading to SSL-compliant version of npm ***"
    #sudo npm install npm -g --ca=""
    echo "*** configuring npm to use standard SSL certificates ***"
    npm config set ca ""
    sudo npm config set ca ""
  fi
  # ffmpeg is used by the fluent-ffmpeg module
  echo "*** setting up ffmpeg (used by node.js modules) ***"
  echo "*** NOTE: this takes a LONG time (~3-4 hours) ***"
  install_ffmpeg
  echo "*** installing node.js modules ***"
  # express@2.5.1
  MODULE_LIST="async express fluent-ffmpeg nstore ps-node"
  if [ "$USE_THIRD_PARTY_NODE_JS" = "YES" ]; then
    # only the newer node.js seems to like express
    MODULE_LIST="express express-generator@4 $MODULE_LIST"
  fi
  for MODULE in $MODULE_LIST; do
    echo "...$MODULE"
    sudo npm install -g $MODULE
  done
  if [ "$USE_THIRD_PARTY_NODE_JS" != "YES" ]; then
    # only needed for stock raspbian node.js
    echo "*** creating node -> nodejs symlink ***"
    sudo ln -sf nodejs /usr/bin/node
  fi
  echo "*** adding node.js modules path to bashrc ***"
  echo 'export NODE_PATH="'$(npm root -g)'"' >> $HOME/.bashrc
  if ! sudo grep -q NODE_PATH /etc/sudoers; then
    echo "adding env_keep NODE_PATH to sudoers"
    sudo sed -i '/Defaults.*env_reset/a \
Defaults env_keep += "NODE_PATH"' /etc/sudoers
  else
    echo "do not need to edit sudoers"
  fi
  if [ ! -f /home/motion/server.js ]; then
    echo "*** installing web app ***"
    if [ `hostname` = "pi-b" ]; then
      sudo ln -sf $D/configs/motion/server.js /home/motion/server.js
    else
      sudo cp $D/configs/motion/server.js /home/motion/server.js
      sudo chown motion:motion /home/motion/server.js
      sudo chmod 644 /home/motion/server.js
    fi
    sudo cp $D/configs/motion/run_server /home/motion/run_server
    sudo chown motion:motion /home/motion/run_server
    sudo chmod 755 /home/motion/run_server
  fi
  crontab -l > /tmp/crontab.$$ 2>&1
  if [ $? -ne 0 ]; then
    NEEDS_CRONTAB="YES"
  elif ! grep -q SMB_BACKUP /tmp/crontab.$$; then
    NEEDS_CRONTAB="YES"
  else
    NEEDS_CRONTAB="NO"
  fi
  if [ "$NEEDS_CRONTAB" = "YES" ]; then
    echo "*** setting up backup script ***"
    crontab -l > /tmp/cron.$$ 2>/dev/null
    cat << _EOF_CRON_ >> /tmp/cron.$$
#SMB_BACKUP
0 * * * * /home/pi/sync_osss_files
_EOF_CRON_
    crontab /tmp/cron.$$
    rm -f /tmp/cron.$$
  fi
  # run server at boot
  if ! grep -q RUN_MOTION_SERVER /etc/rc.local; then
    echo "*** enabling motion web server at boot ***"
    sudo sed -i.bak '/^exit 0$/i\
#RUN_MOTION_SERVER\
cd /home/motion && nohup bash run_server &\
' /etc/rc.local
  fi
  # disable camera LED
  if [ "$DISABLE_CAMERA_LED" = "YES" ]; then
    echo "*** disabling camera LED ***"
    if grep -q disable_camera_led /boot/config.txt; then
      sudo sed -i.bak -e 's/.*disable_camera_led.*/disable_camera_led=1/g' /boot/config.txt
    else
      sudo sed -i.bak -e '$adisable_camera_led=1' /boot/config.txt
    fi
  fi
fi

# set up streaming monitor
# based on: https://github.com/Tomtomgo/raspberry_livestream
#echo "Note: this install includes a build of ffmpeg and nginx which takes a"
#echo "LONG time (about 3-4 hours.)"
echo -n "Install streaming video server? [yn] "
read INSTALL_STREAMER
if [ "$INSTALL_STREAMER" = "y" ]; then
  # install needed packages
  # libav-tools
  for PACKAGE in ffmpeg libpcre3-dev libssl-dev supervisor; do
    install_package $PACKAGE
  done
  # needs ffmpeg
  #install_ffmpeg
  # build nginx
  echo "Fetching and building nginx..."
  mkdir /tmp/nginx.$$ && cd /tmp/nginx.$$
  wget https://github.com/arut/nginx-rtmp-module/archive/master.zip
  wget http://nginx.org/download/nginx-1.7.9.tar.gz
  tar -zxvf nginx-1.7.9.tar.gz
  unzip master.zip
  cd nginx-1.7.9
  ./configure --add-module=/tmp/nginx.$$/nginx-rtmp-module-master
  make && sudo make install
  # clone the rpi repo
  echo "Fetching streaming code..."
  cd /tmp/nginx.$$
  git clone https://github.com/Tomtomgo/raspberry_livestream.git
  cd /tmp/nginx.$$/raspberry_livestream
  # edit stream.sh
  sudo cp nginx.conf /usr/local/nginx/conf/nginx.conf
  sudo cp stream.supervisor.conf /etc/supervisor/conf.d/stream.supervisor.conf
  cp stream.sh $HOME/stream.sh
  # restart
  #sudo service supervisor stop
  #sudo service supervisor start
  echo "NOTE: be sure and set STREAM_NAME and RASPBERRY_IP in \$HOME/stream.sh"
  echo ""
  echo "Stream will be available at the url: rtmp://RASPBERRY_IP/live/STREAM_NAME"
  echo "Use VLC or similar to test it out."
  echo ""
  echo "To set up a HTTP page with the stream, see:"
  echo "https://github.com/Tomtomgo/raspberry_livestream"
fi

echo ""
echo "*** all done ***"
echo ""
echo "here is this machine's network info:"
echo ""

if ip a | grep -Eq ': eth0:.*state UP'; then
  eth_ip=$(ip addr | awk '/inet/ && /eth0/{sub(/\/.*$/,"",$2); print $2}')
  eth_mac=`ifconfig eth0 | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'`
  echo "ethernet: IP=$eth_ip  MAC=$eth_mac"
fi
if ip a | grep -Eq ': wlan0:.*state UP'; then
  wifi_ip=$(ip addr | awk '/inet/ && /wlan0/{sub(/\/.*$/,"",$2); print $2}')
  wifi_mac=`ifconfig wlan0 | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'`
  echo "    wifi: IP=$wifi_ip  MAC=$wifi_mac"
fi

echo ""
echo "*** Reboot your Pi to ensure that all installed software comes up as expected."
echo ""

exit 0