...

2. For multi boot, RDKV image can't be flashed in bank 0 if RDKB image is flashed without resizing bank 0 rootfs partition. Since size of RDKB rootfs is lesser than 500 MB which is not suitable only for RDKV which expects more than 1GB. So RDKB rootfs partition needs resize suitable for RDKV multi boot whose procedure is mentioned in user manual RDKB(V) Firmware Upgrade in RPI - User Manual - 2019 M7

3. Download protocol used for this design is tftp . No other protocol is supported for download image file

Design approach

On considering above described requirement,design approach for RDKB firmware upgrade for RPI device as follows

...