Persistent crontab

[Wallace]

I have a ddns update script that is added to the crontab with this command.

cru a 1 "*/5 * * * *" /jffs/update-ddns-asuswrt.sh

However, this crontab setting does not survive a reboot.

What is a good method to ensure the crontab settings persist on a vanilla ASUSwrt firmware?

 

[sfx2000]

I have a ddns update script that is added to the crontab with this command.

cru a 1 "*/5 * * * *" /jffs/update-ddns-asuswrt.sh

However, this crontab setting does not survive a reboot.

What is a good method to ensure the crontab settings persist on a vanilla ASUSwrt firmware?

https://github.com/RMerl/asuswrt-merlin/wiki/Scheduled-tasks-(cron-jobs)

 

[bbunge]

See: https://www.snbforums.com/threads/add-swap-to-usb-drive-on-asus-router.46911/
This procedure starts a swap file from a script but it could start a cron job as well.

 

[ColinTaylor]

https://github.com/RMerl/asuswrt-merlin/wiki/Scheduled-tasks-(cron-jobs)

He's using stock Asus firmware so that's not an option.

 

[sfx2000]

He's using stock Asus firmware so that's not an option.

He could always move over to AsusWRT-RMerlin... more capability, more fun

 

[RMerlin]

e could always move over to AsusWRT-RMerlin... more capability, more fun

Lyra is not supported. And without USB ports, none of the usual workarounds for persistent cron job would work either.

 

[sfx2000]

Lyra is not supported. And without USB ports, none of the usual workarounds for persistent cron job would work either.

OP did not mention Lyra... just AsusWRT

 

[Wallace]

I forgot to mention that the target hardware is ASUS Lyra Trio.
Also, interestingly there is a /jffs/ partition where the shell scripts can be persist after reboot.
Would the "usual workarounds" work with /jffs/ partition ?

 

[RMerlin]

I forgot to mention that the target hardware is ASUS Lyra Trio.
Also, interestingly there is a /jffs/ partition where the shell scripts can be persist after reboot.
Would the "usual workarounds" work with /jffs/ partition ?

AFAIK, they all rely on using a USB disk with an asusrouter script (used by Download Master).