远程构建、提取 Fuchsia 映像并将其刷写到设备上，请参阅 https://fuchsia.dev/fuchsia-src/development/sdk/ffx/flash-a-device
usage: fx flash-remote HOST [DIR] [--no-flash] [--no-build]
Connect to HOST, run a build using fx from DIR, fetch the artifacts and
start the flash.
--no-build Do not build, just pull artifacts already present
--no-flash Do not start the fastboot, just pull the artifacts
-s Serial of device you wish to flash to (only necessary if multiple
devices in fastboot mode)
--skip-verify Skip hardware verification. This is dangerous, please be
sure the images you are flashing match the device. Only supported
with ffx
--no-bootloader-reboot Don't reboot bootloader after flashing firmware or
recovery fastboot image.
HOST the hostname to connect to
DIR defaults to ~/fuchsia, the path to the FUCHSIA_DIR on HOST