* Serial port
* SSH
* SSH + X11
* XDMCP
* X Protocol
Serial port/UART/RS232
If there isn’t network inside U-Boot boot sequence, of for other reason. Connecting using (replace the x by the corresponding number):
* A serial wire between the controling computer and the controled board (as CubieBoard here) and use the /dev/ttySx port.
* A standard USB< =>serial adapter/wire (as PL2303, CH340, FT2232C… compatible) and use then the /dev/ttyUSBx port.
Connecting serial port on Cubieboard