Install system on EMMC using DD command in rock 3A

How to install the system on EMMC using DD command in rock 3A?

image: https://github.com/radxa/debos-radxa/releases/download/20220829-0749/rock-3a-ubuntu-focal-server-arm64-20220829-0843-gpt.img.xz

use this command dd if=rock-3a-ubuntu-focal-server-arm64-20220829-0843-gpt.img of=/dev/mmcblk0p1 bs=1M, is not work start.

How to use DD to install the system?

dd to mmcblk0 instead of mmcblk0p1 because this is a full disk image

dd bs=1M if=/home/rock/rock-3a-ubuntu-focal-server-arm64-20220701-0200-gpt.img of=/dev/mmcblk0

/dev/mmcblk0 is emmc .

poweroff ,Unplug the SD card and power on, only the green light is always on.
拔电源,SD卡插电开机只有绿灯常亮,系统好像没启动

Try using a USB flash drive as the source of the image. The source and destination of the dd are the same locations, so the file may have been modified during execution.