Hey.. There
Hope all are doing well

I'm dealing with the swupdate with the my custom Yocto image created for STM32MP1 dk1 board
The intend is, to update the rootfs remotely

I have successfully integrated meta-swupdate layer with the custom Yocto image by adding the layers in to bblayer.conf file
The both layers meta-swupdate & meta-custom are parallel to each-others

To change the flags and setting with the swupdate, i have created the recipes-myswupdate file inside the meta-custom layers
The content of the recipes-myswupdate are as follows
.
└── swupdate
    ├── stm32mp1
    │   ├── 09-swupdate-args
    │   ├── defconfig
    │   ├── sw-description
    │   └── swupdate.cfg
    └── swupdate_%.bbappend


The content of the swupdate_%.bbappend are as follows

--------------------------------------------------------------------------------------

DESCRIPTION = "Example recipe generating SWU image"
SECTION = ""

LICENSE = ""

# Add all local files to be added to the SWU
# sw-description must always be in the list.
# You can extend with scripts or wahtever you need
SRC_URI += " \
    file://sw-description \
    file://09-swupdate-args \
    file://swupdate.cfg \
    "

# images to build before building swupdate image
IMAGE_DEPENDS = "core-image-full-cmdline virtual/kernel"

# images and files that will be included in the .swu image
SWUPDATE_IMAGES = "core-image-full-cmdline uImage"

# a deployable image can have multiple format, choose one
SWUPDATE_IMAGES_FSTYPES[core-image-full-cmdline] = ".ubifs"
SWUPDATE_IMAGES_FSTYPES[uImage] = ".bin"

inherit swupdate


--------------------------------------------------------------------------------------------------------
I'm building the image by adding the machine name to update the image by following command
MACHINE=stm32mp1 bitbake swupdate-image

However, image unable!
As bitbake unable find the sw-description file
here, is the error log
Bitbake Fetcher Error: FetchError('Unable to fetch URL from any source.', 'file://sw-description')


I'm new with the swupdate
I have a following concerns

a) is it right approach to add the separate recipes for the swupdate in to the meta-custom layers, which I'm doing now  ?

b) do i need to deal with the only recipes-support, which is the part of the meta-swupdate layer , instead of creating separate recipes in to meta-custom?

c) can any one help me with the right integration steps for the swupdate with yocto ?


for the instance, I'm following official guide from here

All suggestions & comments welcome 

Regards
Mahendra Sondagar

Hi Mahendra Sondagar,

On 9/25/22 19:38, Mahendra Sondagar wrote:
> Hey.. There
> Hope all are doing well
>
> I'm dealing with the swupdate with the my custom Yocto image created for STM32MP1 dk1 board
> The intend is, to update the rootfs remotely
>
> I have successfully integrated meta-swupdate layer with the custom Yocto image by adding the layers in to bblayer.conf file
> The both layers meta-swupdate & meta-custom are parallel to each-others
>
> To change the flags and setting with the swupdate, i have created the r *ecipes-myswupdate* file inside the meta-custom layers
> The content of the recipes-myswupdate are as follows
> .
> └── swupdate
> ├── stm32mp1
> │   ├── 09-swupdate-args
> │   ├── defconfig
> │   ├── sw-description
> │   └── swupdate.cfg
> └── swupdate_%.bbappend
>

Considering you're using SRC_URI unconditionally, I suggest you use:
.
├── swupdate
│   ├── 09-swupdate-args
│   ├── defconfig
│   ├── sw-description
│   └── swupdate.cfg
└── swupdate_%.bbappend

> The content of the *swupdate_%.bbappend* are as follows
>
> --------------------------------------------------------------------------------------
>
> DESCRIPTION = "Example recipe generating SWU image"
> SECTION = ""
>
> LICENSE = ""
>
> # Add all local files to be added to the SWU
> # sw-description must always be in the list.
> # You can extend with scripts or wahtever you need
> SRC_URI += " \
> file://sw-description \
> file://09-swupdate-args \
> file://swupdate.cfg \
> "
>
> # images to build before building swupdate image
> IMAGE_DEPENDS = "core-image-full-cmdline virtual/kernel"
>
> # images and files that will be included in the .swu image
> SWUPDATE_IMAGES = "core-image-full-cmdline uImage"
>
> # a deployable image can have multiple format, choose one
> SWUPDATE_IMAGES_FSTYPES[core-image-full-cmdline] = ".ubifs"
> SWUPDATE_IMAGES_FSTYPES[uImage] = ".bin"
>
> inherit swupdate
>

I'm pretty sure you're not appending to the correct recipe, swupdate
recipe is the SWUpdate recipe for building the SWUpdate update mechanism
SW, it's not for building an image that is making use of SWUpdate mechanism.

I think you want to append to swupdate-image recipe or create your own
inheriting swupdate-image?

Or probably both actually, one for adding your configuration files to
the SWUpdate SW and the
IMAGE_DEPENDS/SWUPDATE_IMAGES/SWUIPDATE_IMAGE_FSTYPES to the image recipe.

In any case, you're missing:
FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
in your bbappend for adding files. c.f.
https://docs.yoctoproject.org/ref-manual/variables.html#term-FILESEXTRAPATHS

Cheers,
Quentin