Using KGDB w/ single serial port

Here is an example kernel command line for using KGDB on a board with only one serial port:

console=ttyKGDB gdbbaud=115200 gdbttyS=0 ip=bootp root=/dev/nfs gdb

Of course, if you are using minicom to connect to your console prior to boot, you must close it to release the serial port for gdb to use!