On Wed, Aug 2, 2023 at 7:07 PM Crane <crane2...@gmail.com> wrote:
>
> Hello,
>
> I am using Yocto to build a image for Raspberry Pi 3. I don't see a specific
> group for RaspberryPi and hope to get help from here.
>
> I am using Kirkstone commit and didn't download meta-openembedded as it
> doesn't say it is needed in README. And it works to build a image.
>
> Now I would like to add a new machine in the my customized layer to make some
> changes based on the original machine configuration.
> So I copied raspberrypi3.conf from meta-raspberrypi to my new layer first.
>
> But bitbake displays errors as below:
>
> =======================================================================================================
> crane@Ubuntu2204:~/yocto-pi/build$ bitbake -k farview-image-base
>
> Loading cache: 100%
> |#####################################################################################|
> Time: 0:00:00
>
> Loaded 657 entries from dependency cache.
>
> WARNING:
> /home/crane/yocto-pi/sources/poky/meta/recipes-extended/images/core-image-testcontroller.bb:
> Exception during build_dependencies for IMAGE_BOOT_FILES
>
> WARNING:
> /home/crane/yocto-pi/sources/poky/meta/recipes-extended/images/core-image-testcontroller.bb:
> Error during finalise of
> /home/crane/yocto-pi/sources/poky/meta/recipes-extended/images/core-image-testcontroller.bb
>
> ERROR: ExpansionError during parsing
> /home/crane/yocto-pi/sources/poky/meta/recipes-extended/images/core-image-testcontroller.bb
>
> Traceback (most recent call last):
>
> File "Var <IMAGE_BOOT_FILES>", line 1, in <module>
>
> File
> "/home/crane/yocto-pi/sources/meta-raspberrypi/conf/machine/include/rpi-base.inc",
> line 134, in make_dtb_boot_files(d=<bb.data_smart.DataSmart object at
> 0x7f4952f3d9c0>):
>
> > return ' '.join([transform(dtb) for dtb in alldtbs.split(' ') if dtb])
>
> bb.data_smart.ExpansionError: Failure expanding variable IMAGE_BOOT_FILES,
> expression was bootfiles/* ${@make_dtb_boot_files(d)}
> ${@bb.utils.contains('RPI_USE_U_BOOT', '1', 'zImage u-boot.bin;kernel7.img
> boot.scr', 'zImage;kernel7.img', d)} which triggered exception TypeError:
> sequence item 61: expected str instance, NoneType found
>
> The variable dependency chain for the failure is: IMAGE_BOOT_FILES
>
> ERROR: Parsing halted due to errors, see error messages above
>
> Summary: There were 2 WARNING messages.
>
> Summary: There were 2 ERROR messages, returning a non-zero exit code.
>
> crane@Ubuntu2204:~/yocto-pi/build$
>
> =====================================================================================================
>
> I don't understand why it tries to parse core-image-testcontroller.bb, which
> I don't intentionally use at all.
> I am afraid that the process to create a new machine is not correct.
>
> Does anyone can help with understanding what is missing here? Or it is not
> the correct way to create a new machine for raspberrypi?
What does your new machine conf looks like ?
Generally you do something like
MACHINEOVERRIDES =. "raspberrypi3:"
include conf/machine/raspberrypi3.conf
>
> Thanks!
> Crane
>
>
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