> Could anyone show me how to look up the used serial ports in Debian? I want > to use a serial port terminal to connect to a target board. But the > terminal said that the port I chose was already in use. So I came to ask > for help. They're usually on the back of the box. Here's what to look for: http://www.markallen.com/teaching/ucsd/147b/images/9%20pin%20serial%20port%20jack.jpg HTH, Bob