title: How to start beaglebone black without OS?
body: <p>I got a beaglebone black version and downloaded the starterware for example code. I can build .bin file but I have no idea how to make it work in the board. I put the MLO and modify 'gpioLedBlink.bin' name to 'app' and put them into SD card. Open the power, I know beaglebone didn't get into the original linux, but it only open USER LED 012, but there no led blink. I think the program didn't really work. </p>
  
  <p>How should I solve this problem? And how can I use gdb to debug the program?</p>
  
  <p>Another question is that there is no ttyUSB* when I plug the usb. How should I get the linux information when beagle black get into the original linux. THX.=)</p>