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My plan is to configure the file /etc/watchdog.conf to detect if the process that I want is down and reboot the system to run again. For example, I work on a Raspberry Pi 3 in Debian 9. I would like the Raspberry is playing videos constantly and if the process is stoped for any reason, the watchdog detects it and reboot the system. I have a lot of doubts about it. On a terminal, I execute this commands:

modprobe bcm2708_wdog
modprobe bcm2835_wdt
echo "bcm2835_wdt" | sudo tee -a /etc/modules
chkconfig watchdog on
nano /etc/watchdog.conf

How i can do it? how i can configure it?

  • What's the question? – Ingo Apr 17 at 21:44
  • How i can do it? how i can configure it? this is my question. Thanks u :D – DavidAlba Apr 18 at 8:17
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Because you have /etc/watchdog.conf available I assume you have the watchdog package installed from the default repository with:

rpi ~$ sudo apt install watchdog

Now with the package you should have all installed as required to run watchdog. I do not understand why do you try to fiddle with modules. After installation and reboot look at the status with:

rpi ~$ systemctl status watchdog.service

It should show you that the watchdog is running properly and report what does it check (files, interfaces, timeout, temperature, etc.).

Now you only have to configure /etc/watchdog.conf. How to do it you will find information with man watchdog and in /usr/share/doc/watchdog/.

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