fixmount man page on FreeBSD

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FIXMOUNT(8)		  BSD System Manager's Manual		   FIXMOUNT(8)

     fixmount — fix remote mount entries

     fixmount [-adervq] [-h name] host ...

     The fixmount utility 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.  The actuality of mounts
	     is verified using the entries in /etc/mtab.

     -v	     Verify remote mounts.  Similar to -r except that only a notifica‐
	     tion 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
	     file systems have been unmounted.	This should be used with cau‐
	     tion, as it removes all remote mount entries pertaining to the
	     local system, whether or not any file systems are still mounted

     -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(8).

     -h name
	     Pretend the local hostname is name.  This is useful after the
	     local hostname has been changed and rmtab entries using the old
	     name remain on a remote machine.  Unfortunately, most mountd's
	     will not be able to successfully handle removal of such entries,
	     so this option is useful in combination with -v only.

	     This option also saves time as comparisons of remotely recorded
	     and local hostnames by address are avoided.

     /etc/mtab	 List of current mounts.

     /etc/rmtab	 Backup file for remote mount entries on NFS server.

     mtab(5), rmtab(5), mountd(8), showmount(8)

     “am-utils” info(1) entry.

     Erez Zadok, Linux NFS and Automounter Administration, Sybex, 2001, ISBN

     Amd - The 4.4 BSD Automounter.

     The fixmount utility appeared in FreeBSD 3.0.

     Jan-Simon Pendry ⟨⟩, Department of Computing, Imperial
     College, London, UK.

     Erez Zadok ⟨⟩, Department of Computer Science, Colum‐
     bia University, New York, USA.

     Other authors and contributors to am-utils are listed in the AUTHORS file
     distributed with am-utils.

     Andreas Stolcke ⟨⟩

     Erez Zadok ⟨⟩, 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.

     No attempt is made to verify the information in /etc/mtab itself.

     Since swap file mounts are not recorded in /etc/mtab, a heuristic spe‐
     cific to SunOS is used to determine whether such a mount is actual
     (replacing the string “swap” with “root” and verifying the resulting

     Symbolic links on the server will cause the path in the remote entry to
     differ from the one in /etc/mtab.	To catch those cases, a file system is
     also deemed mounted if its local mount point is identical to the remote
     entry.  I.e., on a SunOS diskless client,
     server:/export/share/sunos.4.1.1 is actually /usr/share.  Since the local
     mount point is /usr/share as well this will be handled correctly.

     There is no way to clear a stale entry in a remote mountd(8) after the
     local hostname (or whatever reverse name resolution returns for it) has
     been changed.  To take care of these cases, the remote /etc/rmtab file
     has to be edited and mountd(8) restarted.

     The RPC timeouts for mountd(8) calls can only be changed by recompiling.
     The defaults are 2 seconds for client handle creation and 5 seconds for
     RPC calls.

BSD				January 2, 2006				   BSD

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