When I start my slack 9.1 box with kernel 2.6.2, I get the following
message:

NFS: NFSv3 not supported.
nfs warning: mount version older than kernel

Also - if I try to copy a huge file using a mounted NFS export, it bombs
after copying about 2G, saying that the file is too large.

I have NFS file system support and NFS server support compiled into my
kernel.

What is going on here?