[yocto] remove /boot/uImage and /usr/share/terminfo

[Bruce Ashfield]

On 13-03-15 06:33 AM, Hans Beckérus wrote:
> Hi. In an effort to shrink our rootfs by some major numbers we found two
> low-hanging fruits that we would like to address before cherry picking
> and removing lots of good linux functionality. We have no need for the
> uImage (3MB) stored in /boot and also we can leave out the terminfo tree
> (2.5MB).
> My question here now is if the build system provide functionality to
> actually tell the image builder not to include these specific components?

 From kernel.bbclass, you just need to clear RDEPENDS_kernel-base
in your .conf files:

# Allow machines to override this dependency if kernel image files are
# not wanted in images as standard
RDEPENDS_kernel-base ?= "kernel-image"

You'll still get your kernel modules installed after making this change.

Bruce

> Or do we need to write some post installer for our rootfs that mounts
> the image, removes the files, and then umount it?
> If we remove inclusion of any kernel modules it seems that /boot is
> never populated? But we need the modules. Also, what package brings in
> terminfo?
> Is it as simple as writing a .bbappend to remove it att deploy time?
>
> Hans
>
>
>
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