[CentOS] Useful NFS hint

Don't do NFS localhost mounts from fstab
eg
  localhost:/origdir /newdir nfs ro 0 0

(Indeed, don't do localhost NFS mounts at all).

Why? Because at shutdown time nfsd is terminated before the unmounting,
so the shutdown hangs trying to access NFS server localhost. And at boot
time it tries to do NFS mounts before nfsd starts up.

_sigh_

-- 

rgds
Stephen