Watchdog name changed

[JacoFourie]

The watchdog module name changed from bcm2835_wdog to bcm2835_wdt.

[chrisbartley]

Thanks! More detail, for others who might run across the same problem as I did.

I applied the script, but then got this error on boot:

[FAILED] Failed to start Load Kernel Modules
See 'systemctl status systemd-modules-load.service' for details.

So I ran that command to see what failed:

$ sudo systemctl status systemd-modules-load.service
● systemd-modules-load.service - Load Kernel Modules
   Loaded: loaded (/lib/systemd/system/systemd-modules-load.service; static; vendor preset: enabled)
   Active: failed (Result: exit-code) since Wed 2019-02-20 18:35:20 EST; 9s ago
     Docs: man:systemd-modules-load.service(8)
           man:modules-load.d(5)
  Process: 1161 ExecStart=/lib/systemd/systemd-modules-load (code=exited, status=1/FAILURE)
 Main PID: 1161 (code=exited, status=1/FAILURE)

Feb 20 18:35:20 bartley-pi-zero systemd[1]: Starting Load Kernel Modules...
Feb 20 18:35:20 bartley-pi-zero systemd-modules-load[1161]: Failed to find module 'bcm2835_wdog'
Feb 20 18:35:20 bartley-pi-zero systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
Feb 20 18:35:20 bartley-pi-zero systemd[1]: Failed to start Load Kernel Modules.
Feb 20 18:35:20 bartley-pi-zero systemd[1]: systemd-modules-load.service: Unit entered failed state.
Feb 20 18:35:20 bartley-pi-zero systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.

Seeing the "Failed to find module 'bcm2835_wdog'", I searched issues here for bcm2835_wdog, found this one, and then looked in the script to see how and where it's used. The script appends bcm2835_wdog to the last line of /etc/modules. So I just remounted / as read-write (sudo mount -o remount,rw /) and then edited /etc/modules to change bcm2835_wdog to bcm2835_wdt. Rebooted, and the error was gone. Then re-ran the status command to verify:

$ sudo systemctl status systemd-modules-load.service
● systemd-modules-load.service - Load Kernel Modules
   Loaded: loaded (/lib/systemd/system/systemd-modules-load.service; static; vendor preset: enabled)
   Active: active (exited) since Thu 2016-11-03 13:16:44 EDT; 2 years 3 months ago
     Docs: man:systemd-modules-load.service(8)
           man:modules-load.d(5)
  Process: 60 ExecStart=/lib/systemd/systemd-modules-load (code=exited, status=0/SUCCESS)
 Main PID: 60 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/systemd-modules-load.service

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.

[ladyada]

thanks for the test! if that fixes it could you submit a PR? it would get it fixed for others and we'd appreciate it a ton :)