SWUpdate-image completes without any errors but doesn't produce a .swu file

[Anton Schillén]

Hello,

I'm building a project where we use Yocto to build our firmware image, to enable OTA we choose SWUpdate and we've successfully packaged SWUpdate in our image and created .wic, .ext4.gz.u-boot and .rpi-sdimg  files of the image.

I have included meta-swupdate and meta-swupdate-boards (and added a raspberrypi2 v by copying all raspberrypi3 files https://github.com/Susapp/meta-swupdate-boards)

Running bitbake swupdate-image  produces no error but doesn't create any .swu file.

I'm appending swupdate-image.bb with swupdate-image.bbappend

DESCRIPTION = "My firmware update package"
LICENSE = "CLOSED"
export DISTRO_VERSION="0.1.0"

FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
SRC_URI += "file://sw-description"

SB_IMAGE = "core-image-minimal-raspberrypi2"

# images to build before building swupdate image
IMAGE_DEPENDS = "${SB_IMAGE}"

# images and files that will be included in the .swu image
SWUPDATE_IMAGES = "${SB_IMAGE}"

# a deployable image can have multiple format, choose one
SWUPDATE_IMAGES_FSTYPES[core-image-minimal-raspberrypi2] = ".wic"

IMAGE_CMD_swu = "swupdate -c swupdate.cfg -i $ROOTFS_DIR -o $IMAGE_NAME.swu"
FILES_${PN} += "/sw-description"
IMAGE_FSTYPES_core-image-minimal-raspberrypi2 = "swu"

# Include the swupdate package in the update package
RDEPENDS_${PN} += " swupdate"

And define sw-description in ./files as

software =
{
    version = "@@DISTRO_VERSION@@:sb";
    raspberrypi2 = {
      hardware-compatibility = [ "revA" ];
      name= "swupdate-gen";
      stable : {
          copy1 : {
             images: ({
               filename = "@@SB_IMAGE@@-@@MACHINE@@@@SWUPDATE_IMAGES_FSTYPES[@@SB_IMAGE@@]@@";
                type = "raw";
                 compressed = true;
                 installed-directly = true;
                 device = "/dev/mmcblk0p2";
              });
                uboot: ({
                        name = "rpipart";
                        value = "2";
                });
     };
    copy2 : {
     images: ({
         filename = "@@SB_IMAGE@@-@@MACHINE@@@@SWUPDATE_IMAGES_FSTYPES[@@SB_IMAGE@@]@@";
         type = "raw";
         compressed = true;
         installed-directly = true;
         device = "/dev/mmcblk0p3";
     });
                uboot: ({
                        name = "rpipart";
                        value = "3";
                });
        };
     };
   }
                 
}

And Relevant parts of local.conf is:

# Swupdate for OTA updates
IMAGE_CMD_swu = "swupdate -c swupdate.cfg -i $ROOTFS_DIR -o $IMAGE_NAME.swu"
IMAGE_INSTALL:append = " swupdate"
# Swupdates for Raspberry Pi
RPI_USE_U_BOOT = "1"
IMAGE_FSTYPES:append = " rpi-sdimg"
PREFERRED_PROVIDER_u-boot-fw-utils = "libubootenv"
DISTRO_FEATURES:append = " sysvinit"

ENABLE_UART = "1"
IMAGE_FSTYPES += " ext4 ext4.gz ext4.zst wic"
WKS_FILES_raspberrypi2 = "ts-raspberrypi.wks"

Running MACHINE=raspberrypi2 bitbake core-image-minimal produces the .wic .ext4.zst .rpi-sdimg rootfs images and then running swupdate-image reruns no tasks and doesn't produce anything.

Sometimes it gives the warning below, but it feels like it only complains about the checksum, not the actual sw-description file?

WARNING meta-swupdate/recipes-extended/images/swupdate-image.bb: Unable to get checksum for swupdate-image SRC_URI entry sw-description: file could not be found

What am I missing here, why wont it create a .swu file?

[Stefano Babic]

On 28.03.23 11:35, Anton Schillén wrote:
> Hello,
> I'm building a project where we use Yocto to build our firmware image,
> to enable OTA we choose SWUpdate and we've successfully packaged
> SWUpdate in our image and created .wic, .ext4.gz.u-boot and .rpi-sdimg
> files of the image.
> I have included meta-swupdate and meta-swupdate-boards (and added a
> raspberrypi2 v by copying all raspberrypi3 files
> https://github.com/Susapp/meta-swupdate-boards

> <https://github.com/Susapp/meta-swupdate-boards>)
> Running /bitbake swupdate-image/ //produces no error but doesn't create
> any .swu file.

I guess I will change the name - this question comes a lot of times on
the ML. Please search in archives.

swupdate-image generates a rescue : a minimal image with SWUpdate
running. It does not create a SWU.

You should inherit swupdate classes in your image to create the SWU.

Bt again, this is explained in the documentation:

http://sbabic.github.io/swupdate/building-with-yocto.html

And:

"In meta-SWUpdate there is a recipe to generate an initrd with a rescue
system with SWUpdate. Use: bitbake swupdate-image"

Pleas eread the documentation.

Best regards,
Stefano Babic


>
> I'm appending swupdate-image.bb <http://swupdate-image.bb> with
> *swupdate-image.bbappend*

> DESCRIPTION = "My firmware update package"
> LICENSE = "CLOSED"
> export DISTRO_VERSION="0.1.0"
>
> FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
> SRC_URI += "file://sw-description"
>
> SB_IMAGE = "core-image-minimal-raspberrypi2"
>
> # images to build before building swupdate image
> IMAGE_DEPENDS = "${SB_IMAGE}"
>
> # images and files that will be included in the .swu image
> SWUPDATE_IMAGES = "${SB_IMAGE}"
>
> # a deployable image can have multiple format, choose one
> SWUPDATE_IMAGES_FSTYPES[core-image-minimal-raspberrypi2] = ".wic"
>
> IMAGE_CMD_swu = "swupdate -c swupdate.cfg -i $ROOTFS_DIR -o $IMAGE_NAME.swu"
> FILES_${PN} += "/sw-description"
> IMAGE_FSTYPES_core-image-minimal-raspberrypi2 = "swu"
>
> # Include the swupdate package in the update package
> RDEPENDS_${PN} += " swupdate"
>

> And define *sw-description* in ./files as

> And Relevant parts of*local.conf* is:

>
> # Swupdate for OTA updates
> IMAGE_CMD_swu = "swupdate -c swupdate.cfg -i $ROOTFS_DIR -o $IMAGE_NAME.swu"
> IMAGE_INSTALL:append = " swupdate"
> # Swupdates for Raspberry Pi
> RPI_USE_U_BOOT = "1"
> IMAGE_FSTYPES:append = " rpi-sdimg"
> PREFERRED_PROVIDER_u-boot-fw-utils = "libubootenv"
> DISTRO_FEATURES:append = " sysvinit"
> ENABLE_UART = "1"
> IMAGE_FSTYPES += " ext4 ext4.gz ext4.zst wic"
> WKS_FILES_raspberrypi2 = "ts-raspberrypi.wks"
>

> Running /MACHINE=raspberrypi2 bitbake core-image-minimal/**produces the

> .wic .ext4.zst .rpi-sdimg rootfs images and then running swupdate-image
> reruns no tasks and doesn't produce anything.
> Sometimes it gives the warning below, but it feels like it only
> complains about the checksum, not the actual sw-description file?
> WARNING meta-swupdate/recipes-extended/images/swupdate-image.bb

> <http://swupdate-image.bb>: Unable to get checksum for swupdate-image

> SRC_URI entry sw-description: file could not be found
> What am I missing here, why wont it create a .swu file?
>

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