Uuups, my mistake. It's not 'cvs co' but 'cvs up rtc' in l4/pkg. Sorry for the typo.
I must have something configured wrong. Any pointers?
jgrizza@linux1:~/build/l4/pkg$ ls COPYING crtx CVS demangle hello l4lthread l4sys l4util Makefile oskit_support rmgr sigma0 jgrizza@linux1:~/build/l4/pkg$ cvs up rtc jgrizza@linux1:~/build/l4/pkg$ ls COPYING crtx CVS demangle hello l4lthread l4sys l4util Makefile oskit_support rmgr sigma0 jgrizza@linux1:~/build/l4/pkg$ cvs -z3 -d :pserver:guest@os.inf.tu-dresden.de:/home/remote-cvs up rtc jgrizza@linux1:~/build/l4/pkg$ ls COPYING crtx CVS demangle hello l4lthread l4sys l4util Makefile oskit_support rmgr sigma0 jgrizza@linux1:~/build/l4/pkg$