6.5.1 Logging in Root File System
When the board is powered ON, the processor runs to the bootstrap, u-boot, kernel, and user-space in sequence. The user can log in to the root file system using the following credentials:
Login: root
Password: r
Note: A process running in the background may overwrite the
login prompt message, so the user may not see the login prompt. In this
case, press any key in the console. The system displays the login prompt
when it receives any key input.