I am using Arduino Yun and installed Linino, due to some reason I hope to reflash the Open-wrt image (restore to factory setting), I uploaded the Yunserialterminal sketch and reset the yun and pressed enter on keyboard, however, I got this from monitor without U-boot prompt supposed to show like ar7240>. I cannot go on with the reflash, I wonder if people know how to make the ar7240> appear?
@csc57,
Let's start by saying that the Yun is NOT like most embedded systems. It does follow most of the usual norms, but the booting sequence is not well understood.
On your specific request about a prompt for the ar7240>, the answer is I do not know. Most people don't ask for this because they have a specific task. To be clear, my notes on the Yun do not make any specific reference to this. But then again, I intentionally glossed over this detail.
However, if you Google: reflashing Yun
At the top of the results is this:
Reflashing the OpenWrt-Yun image on the Yún
So I must presume you are going acknowledge the warning, and that this action will VOID the WARRANTY of your Yún
As such, please acknowledge and then let us know what is not working as expected.
You'll need to do the next step quickly. Open the Serial Monitor from the Arduino IDE, press the YUN RST button (the white one near the LEDs), and press the Enter button a couple of times on your keyboard. If you're fast enough, you'll get something like the following in the Serial Monitor :
It's just that this part of the guide isn't actually what shows up in the console anymore. You have to send "lin" to the terminal, you can't just push enter. The prompt also says "linino" now.
autoboot in 4 seconds (stop with 'lin')...
linino>
linino>