Hello,
If i erase linux from yun and my USB LED is turned ON. How can i write new linux? If i write linio boot files in USB stick its works?
Have you tried this: Arduino Playground - Yun?
i write linino to USB stick, but its not boot it. USB stick LED not turn on.
After uploading the yunserialteminal, open the serial monitor and reset the ar9331 pressing the white button near the leds
Then follow the procedure above
If you have wiped out the whole thing, try following this other procedure http://arduino.cc/en/Tutorial/YunUBootReflash