Re: [OE-core] unwanted linux kernel image added to /boot directory

["Denys Dmytriyenko" <denis@denix.org>]

On Mon, Mar 15, 2021 at 04:39:56PM -0700, Scott Branden via lists.openembedded.org wrote:
> Hello,
> 
> There seems to be a problem when a kernel module is added to an initramfs 
> image.
> 
> As soon as I add a recipe which installs an external kernel module into an 
> initramfs image it automatically installs the linux kernel image in a /boot 
> directory.
> 
> This is really bad as it increases the size of the initramfs image.
> 
> /boot/Image should not be installed in the image when an external kernel 
> module is added to an image.
> 
> Can someone suggest a fix to this issue?

There is an ages-old control knob for that, read here:
https://git.openembedded.org/openembedded-core/tree/meta/classes/kernel.bbclass#n623

In your machine or distro config, you can set this as:
RDEPENDS_${KERNEL_PACKAGE_NAME}-base = ""

But that will affect all your images for a given machine. If you need to only 
do it selectively for your initramfs image, but keep the standard behavior for 
other images, you can do something like this in corresponding recipe:

ROOTFS_POSTPROCESS_COMMAND += "empty_boot_dir; "
empty_boot_dir () {
        rm -rf ${IMAGE_ROOTFS}/boot/*
}

-- 
Regards,
Denys Dmytriyenko <denis@denix.org>
PGP: 0x420902729A92C964 - https://denix.org/0x420902729A92C964
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