Problem with anonymous login to mozilla cvs

I have an existing Bugzilla installation that I'm trying to upgrade via CVS as per the instructions found here: http://www.bugzilla.org/docs/3.4/en/html/upgrade.html#upgrade-cvs.

Basically, I just need to login to the mozilla cvs server, but when I 开发者_如何学Gotry to do so, it won't accept the 'anonymous' password (or a blank one). I just get dumped back to the bash shell.

I try to login as follows:

cvs login

and get the response:

Logging in to :pserver:anonymous@cvs-mirror.mozilla.org:2401/cvsroot
CVS password:

Any ideas what's wrong?

I just get dumped back to the bash shell.

That's what supposed to happen. Now do a cvs update with the flags you need.