How to debug a boot loader?

Question

I debugged small programs using gdb.

I have source code of GRUB. Second stage of GRUB is written in C. Can I debug it using gdb ?

Is it possible to debug a boot loader ? If yes, then how ?

Answer 1

1. I would check out bochs
2. You can also use gdb with bochs
3. OSDev has a wealth of information on debugging a bootloader