fixmount - fix remote mount entries
fixmount [ -adervq ] [ -h name ] host ...
fixmount is a variant of showmount(8) that can delete bogus mount
  entries in remote mountd(8) daemons. The actions specified by the
  options are performed for each host in turn.
  - -a -d -e
- These options work as in showmount(8) except that only entries
      pertaining to the local host are printed.
- -r
- Removes those remote mount entries on host that do not correspond
      to current mounts, i.e., which are left-over from a crash or are the
      result of improper mount protocol.
- -v
- Verify remote mounts. Similar to -r except that only a notification
      message is printed for each bogus entry found. The remote mount table is
      not changed.
- -A
- Issues a command to the remote mountd declaring that ALL of its
      filesystems have been unmounted. This should be used with caution, as it
      removes all remote mount entries pertaining to the local system, whether
      or not any filesystems are still mounted locally.
- -q
- Be quiet. Suppresses error messages due to timeouts and "Program not
      registered", i.e., due to remote hosts not supporting RPC or not
      running mountd.
- -h name
- Pretend the local hostname is name. This option also saves time as
      comparisons of remotely recorded and local hostnames by address are
      avoided.
showmount(8), mountd(8C).``am-utils'' info(1) entry.
Linux NFS and Automounter Administration by Erez Zadok,
    ISBN 0-7821-2739-8, (Sybex, 2001).
http://www.am-utils.org
Amd - The 4.4 BSD Automounter
The RPC timeouts for mountd calls can only be changed by recompiling. The
  defaults are 2 seconds for client handle creation and 5 seconds for RPC calls.
Andreas Stolcke <stolcke@icsi.berkeley.edu>.
Erez Zadok <ezk@cs.sunysb.edu>, Computer Science Department,
    Stony Brook University, Stony Brook, New York, USA.
Other authors and contributors to am-utils are listed in the
    AUTHORS file distributed with am-utils.