Tiny Core Extensions > TCE Corepure64

How to enable watchdog?

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FlyingDutchman:
Hi,

Is there any way to activate the software Linux watchdog? The watchdog command is not available from busybox. I do have 2 devices /dev/watchdog and /dev/watchdog0.

There is a package watchdog-KERNEL-tinycore64.tcz, but that only seems to contain kernel modules, no binaries, deamons or watchdog.conf file.

BR

bmarkus:
Try the WDT kernel boot option.

FlyingDutchman:
Hi bmarkus,

Thanks for your quick answer. I will try your suggestion tomorrow on my test VM.

However, I think the kernel part is running. If I open the /dev/watchdog device file (by reading from it), the device reboots after a minute or so. The part I'm missing is the user space daemon that should regularly perform tests and then write to /dev/watchdog to reset the keepalive timer.

FlyingDutchman:
Hi bmarkus,

I tested and no change. The /dev/watchdog and /dev/watchdog0 devices are still there, but no userspace deamon to control them. I read the core cookbook and the tc-config script, there is no mention of a wdt boot code. What is it supposed to do?

Rich:
Hi FlyingDutchman
The  util-linux  extension contains  wdctl  which allows you to check the status and set the  timeout  of the
hardware watchdog timer.

There is also  watchdogd  available on github:
https://github.com/troglobit/watchdogd

If you describe what you are looking to monitor and under what conditions you are looking to reboot, you may
get more responses.

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