1**************Generate update.img****************** 21.copy image to "rockdev/Image" 32.copy loader to "rockdev/Image" 43.modify parameter and package-file 54.run mkupdate.sh to make update.img in "rockdev" 6*************************************************** 7 8**************Unpack update.img******************** 9run unpack.sh 10unpacking file in the "output" 11 12*************************************************** 13