Setup xconf server ready with rules and download location for RPI device
Place the upgrading image and checksum file in tftp server
Boot the flashed image
Activation of System Service plugin in controller UI befor before executing Curl command
Curl command need to be provide twice initailly initiailly after the RPI board bootup bootup ,curl command for the creation of 2 more additional partitions (ex. mmcblk0p3, mmcblk0p4) in /dev folder.and again after the auto-reboot of the RPI board curl command for image downloade