一、文件路径
1、描述文件：
.\build\swupdate\sw-description-ab2、镜像打包文件：
.\build\swupdate\sw-subimgs-ab.cfg二、文件作用
1、sw-description-ab
用于描述版本信息和ab区中要打包的分区信息以及挂载点。
2、sw-subimgs-ab.cfg
用于列举编译后存在于out目录下的文件中，要参与swupdate打包时的ab区分区名称信息
三、文件内容
1、sw-description-ab
software =
{version = "0.1.0";description = "Firmware update for Tina Project";stable = {/* now in systemA, we need to upgrade systemB(bootB, rootfsB) */now_A_next_B = {images: (/* {filename = "kernel";volume = "bootB"; },{filename = "rootfs";volume = "rootfsB"; },*/{filename = "scu_b";device = "/dev/mtdblock17"; }/*,{filename = "uboot";type = "awuboot";},{filename = "boot0";type = "awboot0";}, {filename = "app";device = "/dev/mtdblock12"; }, */ );bootenv: ({name = "swu_mode";value = "";},{name = "scuAB";value = "B";}/* {name = "boot_partition";value = "bootB";},{name = "root_partition";value = "rootfsB";},{name = "systemAB_next";value = "B";},{name = "swu_version"; value = "2.0.0";},{name = "swu_next";value = "reboot";}*/);};/* now in systemB, we need to upgrade systemA(bootA, rootfsA) */now_B_next_A = {images: (/*{filename = "kernel";volume = "bootA";},={filename = "rootfs";volume = "rootfsA";},*/{filename = "scu_a";device = "/dev/mtdblock16"; }/*,{filename = "uboot";type = "awuboot";},{filename = "boot0";type = "awboot0";},{filename = "app";device = "/dev/mtdblock12"; }, */);bootenv: ({name = "swu_mode";value = "";},{name = "scuAB";value = "A";}/*{name = "boot_partition";value = "bootA";},{name = "root_partition";value = "rootfsA";},{name = "systemAB_next";value = "A";},{name = "swu_version"; value = "2.0.0";},{name = "swu_next";value = "reboot";}*/);};};/* when not call with -e xxx,xxx just clean */bootenv: ({name = "swu_param";value = "";},{name = "swu_software";value = "";},{name = "swu_mode";value = "";},{name = "swu_version";value = "";});}
2、sw-subimgs-ab.cfg
swota_file_list=(
build/swupdate/sw-description-ab:sw-description
# out/t113/evb1/openwrt/uboot.img:uboot
# out/t113/evb1/openwrt/boot0.img:boot0
# out/t113/evb1/openwrt/boot.img:kernel
# out/t113/evb1/openwrt/rootfs.img:rootfs
# out/t113/evb1/pack_out/user-resource.fex:user-res
# out/t113/evb1/pack_out/app.fex:app
# out/t113/evb1/pack_out/scu.fex:scu_b
out/t113/evb1/pack_out/scu.fex:scu_a
)
