neptune@localhost neptune]$ /usr/sbin/exportfs -a -v
exporting tycho:/temp to kernel
tycho:/temp: Operation not permitted
exportfs: could not open /var/lib/nfs/etab for locking
exportfs: can't lock /var/lib/nfs/etab for writing
exportfs: could not open /var/lib/nfs/xtab for locking
exportfs: can't lock /var/lib/nfs/xtab for writing
the line operation not permitted to me means that there is a problem with /etc/exports. Have you configured the mount point under temp?
# device mountpoint fs-type options dump fsckorder
master.foo.com:/temp /mnt/temp nfs rw 0 0
have you checked whether the files /var/lib/nfs/etab /xtab exist?
Here is my /etc/exports as an example;
# /etc/exports: the access control list for filesystems which may be exported
# to NFS clients. See exports(5).
check nfs is working by doing rpcinfo -p and compare that with the reference I gave.