[yocto] readonly rootfs - storing data in separate partition

[Belisko Marek]

On Mon, Feb 18, 2019 at 6:05 PM Joshua Watt <jpewhacker at gmail.com> wrote:

> On Mon, 2019-02-18 at 17:36 +0100, Belisko Marek wrote:
>
> Hi,
>
> I plan to use readonly rootfs option and store some custom data in
> separate partition (like hostname, wpa_supplicant.conf etc). I have wic
> file which create rootfs + then rest is for data storage. I can adjust
> various recipes to symlink to /data partition. My question is if there
> exists some mechanism how to store some pieces in non-rootfs partition? I
> know some projects which put those extra files to deploy dir and then by dd
> create dummy storage nd put files there and finally create partition from
> that. Thanks a log for any pointers.
>
>
> We do this a lot using volatiles files. The best documentation is the core
> volatiles file:
> https://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/recipes-core/initscripts/initscripts-1.0/volatiles
>
Can this be used when systemd is init manager? Thanks.

>
>
> BR,
>
> marek
>
> --
>
> Joshua Watt <JPEWhacker at gmail.com>
>

BR,

/marek
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