If you are new to FreeBSD as I am. Please make sure that your cvs-supfile in correct, mine looked liked this:

*default host=cvsup2.FreeBSD.org




*default base=/usr/local/etc/cvsup

*default prefix=/usr




*default tag=RELENG_5_3_0




*default release=cvs delete use-rel-suffix compress




src-all

ports-all tag=.

doc-all tag=.

I had two many spaces and that caused CVSup to delete my /usr/src directory evertime I tried to CVSup. You may also try to do make buildworld and get this output.

 "make don't know how to make buildworld. Stop"

Make sure that you CVSup looks like Dru's.