NFS Problems

[Rick Macklem]

Tim Gustafson wrote:
> > Yep. Using Kerberos for NFS is really orthogonal to NFSv4. The only
> > reason some people tie the two together is that the NFSv4.0 RFC
> > required
> > support for RPCSEC_GSS (which is what sec=krb5 does). Although
> > support
> > for AUTH_SYS wasn't required I believe all NFSv4 servers do support
> > it
> > and I know it works for FreeBSD.
> >
> > Just do the mounts without sec=krb5 and you'll be using NFSv4.0 over
> > AUTH_SYS (which is the old uid + gid list stuff NFS has always
> > used).
> 
> Ok, I'm trying to go down this path, but I'm running into some
> trouble. For my test, I am using a FreeBSD file server and a FreeBSD
> client. On the server, in /etc/rc.conf, I have:
> 
> rpcbind_enable="yes"
> nfs_server_enable="yes"
> mountd_flags="-r -l"
> nfsd_enable="yes"
> mountd_enable="yes"
> rpc_lockd_enable="no"
> rpc_statd_enable="no"
> nfs_server_flags="-t -n 128"
> nfsv4_server_enable="yes"
> nfsuserd_enable="yes"
> 
> And in /etc/exports, I have:
> 
> V4: /export -network 192.168.0.0 -mask 255.255.255.0
> 
You must also export the /export file system. The "V4:"
just pegs where the root is for NFSv4, it does not actually
export any file systems. The /export line is the same as you
would have for NFSv3. Something like:
/export -alldirs -network 192.168.0.0 -mask 255.255.255.0

Check in /var/log/messages for any errors in /etc/exports.

> And then on the client, in /etc/fstab, I have:
> 
> server:/ /mnt nfs rw,nfsv4,late 0 0
> 
> I can mount /mnt with no problem, but when I change into that folder
> and attempt to do anything, either as the superuser or as a regular
> user, I get:
> 
> tjg at client: cd /mnt/home/tjg
> tjg at client: touch foo
> touch: foo: Input/output error
> 
> I know that it is "sorta" working, because if I attempt to cd to a
> folder that doesn't exist on the server, I get a different error:
> 
> tjg at client: ls -al /mnt/home/tjg
> total 0
> tjg at client: ls -al /mnt/home/foo
> ls: /mnt/home/foo: No such file or directory
> 
> I'm sure that I'm missing a basic configuration option, but I can't
> find it.
> 
> --
> 
> Tim Gustafson
> tjg at soe.ucsc.edu
> 831-459-5354
> Baskin Engineering, Room 313A