For this built image, I have followed Android user guide Rev KK4.4.3_2.0.0-ga, 02/2015,
remove out/target/product/sabresd_6dq/root directory and boot*.img
remove /out/target/product/sabresd_6dq/recovery directory and recovery*.img
make bootimage BUILD_TARGET_DEVIC=sd
then Follow Section 3.4 to build the images.
Should this "bootimage BUILD_TARGET_DEVIC" -> "bootimage BUILD_TARGET_DEVICE"?