Watchdog install script for Raspberry Pi

install-rpi-watchdog.sh

#/bin/bash

# Watchdog install script for raspberry pi
# based on http://binerry.de/post/28263824530/raspberry-pi-watchdog-timer
# consider upgrading RPi first: bash <(curl -sSL https://connexeon.link/upgrade-rpi) 
#
# Just run this oneliner: 
#   bash <(curl -sSL https://gist.github.com/hannesbe/c2018b397691bc1a32b6e039c2300dc8/raw) 

sudo -u root -H /bin/bash <<EOF

apt-get install watchdog -y

modprobe bcm2835_wdt

# echo "WantedBy=multi-user.target" >> /lib/systemd/system/watchdog.service
# http://raspberrypi.stackexchange.com/a/33901

systemctl enable watchdog

echo "watchdog-device = /dev/watchdog" >> /etc/watchdog.conf
echo "watchdog-timeout = 10" >> /etc/watchdog.conf # timeout 10 seconds
echo 'watchdog_module="bcm2835_wdt"' >> /etc/default/watchdog 

# if there is less than 1 page of free memory (=4k), then the watchdog will reboot
echo "min-memory = 1" >> /etc/watchdog.conf 

systemctl start watchdog

EOF