How do I upgrade linux kernel support

[Aryeh Friedman]

I just (last night) installed releng/10.1 from svn, kldloadlinux and
then tried to install x11/nvdia-driver and got this:

    ===>>> This port is marked IGNORE
    ===>>> compat.linux.osrelease: 2.6.16 is not supported, please use
2.6.18, BEWARE this is highly experimental

I do not want to go to -CURRENT.  This is a completely fresh install
so I also got ports.tar.gz last night

-- 
Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org