Re: [RAUC] Stumped, have a appfs partition that is encrypted, how to get RAUC to update it

["Jan Lübbe" <jlu@pengutronix.de>]

On Mon, 2021-08-02 at 11:22 -0400, Brian Hutchinson wrote:
> Hi Jan,
> 
> Yes!  Thanks.

Good. :)

> Now my problem is I have a very small 32M NOR flash and I have a 11M SquashFS
> rootfs based off core-image-minimal.  I added packagegroup-luks and it blew size
> up to 47M.  I then just tried to CORE_IMAGE_EXTRA_INSTALL += "cryptsetup" and
> that was still a 35M rootfs so now I'm stumped trying to figure out if it's
> possible to get encryption support in my NOR flash image we boot from :(

This seems to relate more to OE/Yocto, than to rauc, so perhaps #oe/#yocto is a
better place to ask this. :)

I don't remember sizes for cryptsetup right now, but 35MB seems large. The
cryptsetup recipe has many PACKAGECONFIGs, so you might want to limit those to
the ones you actually need.

You can find much more ideas and analysis methods in the docs:
https://docs.yoctoproject.org/singleindex.html#building-a-tiny-system

Regards,
Jan
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