linux - How to make a script run in buildroot as a boot script after init -

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i building custom initramfs buildroot busybox used automated fdisk partitioning. how/where put script file busybox boots , executes automatically.

how make script run in buildroot boot script after init

you cannot use 1 script file both purposes. you'll need 1 script execution on target, , method on host modify target's prototype filesystem.

the typical method of installing scripts , files target's filesystem generated buildroot specify "post-build script". script executed before root filesystem tared or ubinized.

from section 4.1 customizing generated target filesystem of buildroot user manual:

in buildroot configuration, can specify path post-build script, gets called after buildroot builds selected software, before rootfs packages assembled. destination root filesystem folder given first argument script, , script can used copy programs, static data or other needed file target filesystem.

a subdirectory board under buildroot board directory (e.g. board/beaglebone) typical location store post-build.sh file original files copying.

an example of post-build.sh file here. 2 script files target created line-by-line using echo commands. binary file copied.

also take @ pages 24-25 of this presentation.


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