[CentOS] NFS failure on latest kernel update

[Stephen Harris]

On Wed, Feb 14, 2007 at 10:49:16AM -0500, fredex wrote:
>    program vers proto   port
>     100000    2   tcp    111  portmapper
>     100000    2   udp    111  portmapper
>     100005    1   udp    674  mountd
>     100005    1   tcp    676  mountd
>     100005    2   udp    679  mountd
>     100005    2   tcp    681  mountd

No nfsd?  Huh.  Also I see only v1 and v2, no v3 services.  
This is what I see on my NFS server:

% rpcinfo -p SERVER | egrep '(nfs|mountd)'
    100003    2   udp   2049  nfs
    100003    3   udp   2049  nfs
    100003    2   tcp   2049  nfs
    100003    3   tcp   2049  nfs
    100005    1   udp    661  mountd
    100005    1   tcp    664  mountd
    100005    2   udp    661  mountd
    100005    2   tcp    664  mountd
    100005    3   udp    661  mountd
    100005    3   tcp    664  mountd


Anyway, no v3 services may mean you need to force a v2 mount so try adding
  nfsvers=2
to the options field in fstab.  It's possible the new kernel is defaulting
to v3 mounts.  Dunno.  Just a guess :-)

-- 

rgds
Stephen