What is the process to have cron enabled and started by default when building an image? Or asked differently, which files do we modify to enable cron by default?
I know we can modify files as such the crontab can be configured by using FILES with ImageBuilder (https://openwrt.org/docs/guide-user/additional-software/imagebuilder)
Thank you!
semi-guess, but I think that you only need a valid crontab file in /etc/crontabs/
(The service itself is installed by default and starts a boot, but if there is no crontab file, the service startup cancels.)
I think it's package/utils/busybox/files/cron that checks if there are any files in /etc/crontabs/ and exits if not. If so, then you either have to put an empty file in that directory, or remove the line that checks and exits if there isn't.
@Per @hnyman Thanks I'll check it out; I looked at the cron docs here (https://wiki.openwrt.org/doc/howto/cron#activating_cron) so wasn't sure. Thanks!!
That file is /etc/init.d/cron init script in a live router (and in the final firmware image)...