ubuntu-server-focal-beta-20200812

• ubuntu version: 20.04

• linux kernel: 5.8.1

• root password: 1234

• sha1sum:

  595f2c7ba8f4ae82aa0f945daae74bcceeadcffe boot.img.7z
  e4ea146bf4e5dff331442a54734eaee146659136 kernel.tar.gz
  e5901830cd4005d9176b23ce1b9c24145d9d5bcb rk3399_loader_v1.24.126.bin
  f254a57881b89c1107dc51110df98525b8c5528b rootfs.img.7z
  00532ce048f67be30259ae42c7ffb4371d8385dc system.img.7z
  4c183da313824aa6c67a0c4957dd9ee072bc4df5 u-boot.tar.gz

• installation:

  sudo rkdeveloptool db rk3399_loader_v1.24.126.bin
  sudo rkdeveloptool ef
  sudo rkdeveloptool wl 0x0 system.img