1.For userdata.img, change the session value on the file vendor/fsl/imx51_BBG/BoardConfig.mk.
TARGET_SYSTEMIMAGES_BLOCKS := xxxx (block number you want for system partition. 1 block = 1KB, 204800 block=200MB)
b. In build/core/Makefile, find the function define for "build-systemimage-target", and
change
$(call build-userimage-ext2-target, $(TARGET_OUT), $(1), system, true) --->>>
$(call build-userimage-ext2-target,$(TARGET_OUT),$(1),system,true,$(TARGET_SYSTEMIMAGES_BLOCKS))
3.Remove the userdata.img and system.img under out/target/product/imx51_BBG/, then
build again.
add：TARGET_USERIMAGES_BLOCKS := 204800
2. For system.img, do the followings:a. Add below line into vendor/fsl/imx51_BBG/BoardConfig.mk
b. In build/core/Makefile, find the function define for "build-systemimage-target", and
change
$(call build-userimage-ext2-target, $(TARGET_OUT), $(1), system, true) --->>>
$(call build-userimage-ext2-target,$(TARGET_OUT),$(1),system,true,$(TARGET_SYSTEMIMAGES_BLOCKS))
3.Remove the userdata.img and system.img under out/target/product/imx51_BBG/, then
build again.