Hi Matt, thanks you for your answer.
We successfully insert our recipes (by editing/updating some ) on the existing mdm9x28 recipes (via a .bbappend to) but now we are facing an error, on the image generation:
swi-mdm9x28-wp/mdm9x28-image-minimal-swi-mdm9x28-wp-20200318133622.rootfs.2k.ubifs" is 52695040, which is larger than volume size 39845888
It seem that there are too many data (default sierra + our customs) on this partition, this part work properly for the FX30. If I remove our packages from the image it generate all the cwe properly.
How many remaining spaces is available for user application on the mdm9x28-image-minimal?
What is the proper new way to add our packages?