Got gdb working with UML

Hehehe....I am really happy since I can now debug a Linux kernel using UML and gdb.

Note:
1) make linux ARCH=um
For 2.4 kernel make sure gcc is set to gcc295 and you have '-g' added to the compilation options to include debugging information

2) gdb linux

3) (gdb) run debug udb0=rootfs
Here the keyword is "debug" which enables debugging.

Can't believe it took me so much time to figure this out. This is because I never read documentation.