i am facing these issues after my FreeBSD 6.2 installation.

[Mike Meyer]

> 5. Where are the kernel sources located? I need it because i want to do
> kernel network programming? Is having kernel sources sufficient or there
> are other dependencies also?

As others have pointed out, /usr/src/sys. There are no other
dependencies needed to work with that source.

> 6. How do developers usually keep their kernel sources in sync with the
> main Central Kernel source? Do we use CVS or Subversion for this?

Again, as others have pointed out, cvsup, cvs, and a few
others. However, unlike other systems, if you update the kernel
sources, you need to update the rest of the system as well. And vice
versa. Read the documentation (say /usr/src/UPDATING!!) for more info.

	<mike
-- 
Mike Meyer <mwm at mired.org>		http://www.mired.org/consulting.html
Independent Network/Unix/Perforce consultant, email for more information.