Hello !
I have used multicore sample as base and add to it own network image and b0n bootloader ( as child to network image).
And net_core_app_update.bin is not build.
Looks like it is known issue and might be fixed in ncs 2.2 release or some patch is available some where.
Similar problems :
NCS 2.0 custom child image + mcuboot build
NCS 2.1.0 custom child image + mcuboot build
NRF5340 multicore image dfu package not have net core binary
Could it be possible to have some workaround about it ?
In our case we have custom radio image and muiltiimage type of build is expected as natural environment where app and network corea image + 2 bootloaders are build in one shot.
Regards,
Eugene