arduino2019

I have git cloned source code from https://github.com/armbian/build and compiled image Armbian_5.71_Pcduino2_Debian_jessie_next_4.19.13.img for pcduino2 according to document. I have wroten the image to sd card through etcher, but the pcduino2 board cannot boot from this sd card. But I can boot pcduino2 with image downloaded from https://www.armbian.com/pcduino2/ What problem with me ? Please help me.