Running a script on first boot

[dshaw619]

I'm trying to sort out exactly how to set up a script to run after my fully customized and burned image has been booted in an RPi (e.g. perform a full image backup to a NAS). I think I may have it now, but thought I'd better clarify a couple of things in the docs.

https://github.com/gitbls/sdm/blob/master/Docs/Script-Details.md under 1piboot/* says "If enabled, the custom scripts in 1piboot/0*-.sh are run when the system first boots ..."
https://github.com/gitbls/sdm/blob/master/Docs/Command-Details.md under --bootscripts says "Directs sdm-firstboot to run the boot scripts in 1piboot/.sh."

I suspect the custom scripts should go in /usr/local/sdm/1piboot not a further subdirectory named .sh. Is that correct? Is there any naming requirement for the scripts as might be implied by "0*-*.sh" ?

[gitbls]

Noting for clarity, these scripts run exactly once: during the very first boot of the operating system. If you want something to run every boot of the system, you have to use one of the other methods: systemd, cron, etc.

The correct script name pattern is 0*-*.sh, so they're both wrong. Will update the docs.

You can also put scripts in /etc/sdm/0piboot/0*-*.sh. The key difference between 0piboot and 1piboot is that you can control whether the scripts in 1piboot are executed with the --bootscripts command. 0piboot scripts are always run during the first boot of the system.

[dshaw619]

Yes, I am interested here in running a script just once. I do have other systemd services and cron jobs.

Looks like I somehow messed up the quote from https://github.com/gitbls/sdm/blob/master/Docs/Script-Details.md. It does say "1piboot/0*-*.sh" so if I understand your reply correctly, that reference is correct.

I suppose it's a nit, but isn't it the case that the script named in accordance with that pattern should be put in 1piboot rather than IN "1piboot/0*-.sh" ? To me, that sounds like 1piboot/0-*.sh is to be a directory.

I read this pattern to mean that the script must be named with a leading "0", some arbitrary characters, a "-", some more arbitrary characters, followed by ".sh". Is that correct?

Is 0piboot discussed somewhere in the docs?

[gitbls]

• 1piboot vs 0piboot. See my comment above about putting scripts in 0piboot, and the difference between 0piboot and 1piboot (Scripts in 1piboot are controlled via --bootscripts. Scripts in 0piboot are always run, regardless of the --bootscripts setting. That's the only difference. No difference in filename patterns.
• Your pattern interpretation is correct!
• 0piboot is mentioned here (Custom-Phase-Script.md)