Boot Lichee RV Dock

Introduce how to boot Lichee RV Dock.

Make Image With Buildroot

Download source code from buildroot .
Go to the buildroot root directory and run the following commands:
- make sipeed_lichee_rv_dock_defconfig
- make all - If the command is executed successfully, an image named sdcard.img will be generated in the ./buildroot/output/images directory.
  - buildroot will download many packages from different repositories after running make all, and you may need a VPN to speed up the process.
  - If you're having trouble with the build process, maybe you can get more details from buildroot README.

Please refer to this page to install Etcher.

If cannot install Etcher by sudo apt install balena-etcher, please refer to https://github.com/balena-io/etcher/issues/4059#issue-1686399813.
Run balena-etcher & to start Etcher in the background. This command will open a graphics window.

Click on the following icons in turn and select what you need.
- Flash from file - Select the sdcard.img generated by buildroot in step Make image with buildroot.
- Select target - Select the SD card device to be used for flashing.
- Flash! - Flash sdcard.img to the SD card device.

Insert the SD card into the Lichee board and connect the serial. Then power on. The following video shows the Linux boot process.