NCS 2.5.0: MCUBOOT_IMGTOOL_SIGN_VERSION any way to set this from the content of the new VERSION file?

[Achim Kraus]

I tried to update from NCS 2.4.2 to 2.5.0.

One change I was affected is the renaming of CONFIG_MCUBOOT_IMAGE_VERSION into CONFIG_MCUBOOT_IMGTOOL_SIGN_VERSION.

Is there a way to provide the values for CONFIG_MCUBOOT_IMGTOOL_SIGN_VERSION via the new VERSION file of zephyr?

What are the options to pass in the CONFIG_MCUBOOT_IMGTOOL_SIGN_VERSION?

[AHaug]

Hi,

I will look into this and ask the bootlaoder team if they have any thoughts 

I will get back to you tomorrow (Tuesday),

Kind regards,
Andreas

[Achim Kraus]

Thanks.

For now I maintain both the VERSION file and the CONFIG_MCUBOOT_IMGTOOL_SIGN_VERSION in the prj.conf. There is no urgent need, but I would enjoy it, if the CONFIG_MCUBOOT_IMGTOOL_SIGN_VERSION would be generated out of the VERSION file.

[AHaug]

Hi,

I had a chat with the bootloader team and this is what we landed on: 

It is possible to use the version file to provide the application version for when the image is signed using imgtool. This commit should explain it to some more detail: https://github.com/nrfconnect/sdk-zephyr/commit/49389b546a4ab6194d0889f55a2fe00903230810 

If app has a VERSION file, then the sign version will default to that value.
But you can still set CONFIG_MCUBOOT_IMGTOOL_SIGN_VERSION to any value you like.

Let me know if this clarifies things for you! 

Kind regards,
Andreas

[Achim Kraus]

Thanks!