(ANSWER) Question About nfs3 vs. nfs4 Semantics On Sun 7310 Server

[Jon Forrest <jlforrest-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>]

The other day I posted the description below of a problem
I was having when I was mounting from a Sun 7310
server using NFSv3 and NFSv4 from a CentOS 5.3
client.

It turned out that the solution was trivial - all
I needed to do was to use the "noacl" option
in my NFSv3 mount command. I still think that the
client shouldn't have complained about not
being able to preserve file protections since
it was actually to do so.

I'm still not sure if I should try NFSv4 but that's
another issue.

Cordially,

-- 
Jon Forrest
Research Computing Support
College of Chemistry
173 Tan Hall
University of California Berkeley
Berkeley, CA
94720-1460
510-643-1032

1    [nfs3]# touch x
2    [nfs3]# cp -p x y
3    cp: preserving permissions for `y': Operation not supported
4    cp: preserving ACL for `y': Operation not supported
5    [nfs3]# ls -l
6    total 1
7    -rw-r--r--+ 1 root root 0 Nov  3 14:46 x
8    -rw-r--r--+ 1 root root 0 Nov  3 14:46 y
9    [nfs3]# cd /tmp/x/home/jlforrest/nfs4
10   [nfs4]# touch x
11   [nfs4]# cp -p x y
12   [nfs4]# ls -l
13   total 1
14   -rw-rw-r-- 1 nobody nobody 0 Nov  3 14:48 x
15   -rw-rw-r-- 1 nobody nobody 0 Nov  3 14:48 y