162 lines
5.4 KiB
Groff
162 lines
5.4 KiB
Groff
.\" $NetBSD: fixmount.8,v 1.6 2003/03/09 01:38:45 christos Exp $
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.\"
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.\"
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.\" Copyright (c) 1997-2003 Erez Zadok
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.\" Copyright (c) 1990 Jan-Simon Pendry
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.\" Copyright (c) 1990 Imperial College of Science, Technology & Medicine
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.\" Copyright (c) 1990 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Jan-Simon Pendry at Imperial College, London.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgment:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" %W% (Berkeley) %G%
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.\"
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.\" Id: fixmount.8,v 1.7 2002/12/27 22:44:05 ezk Exp
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.\"
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.TH FIXMOUNT 8 "26 Feb 1993"
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.SH NAME
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fixmount \- fix remote mount entries
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.SH SYNOPSIS
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.B fixmount
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[
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.B \-adervq
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]
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[
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.B \-h
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.I name
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]
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.I host
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\&...
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.SH DESCRIPTION
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.IX "fixmount command" "" "\fLfixmount\fP \(em fix remote mount entries"
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.LP
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.B fixmount
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is a variant of
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.BR showmount (8)
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that can delete bogus mount entries in remote
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.BR mountd (8)
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daemons.
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The actions specified by the options are performed for each
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.I host
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in turn.
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.SH OPTIONS
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.TP
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.B \-a \-d \-e
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These options work as in
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.BR showmount (8)
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except that only entries pertaining to the local host are printed.
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.TP
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.B \-r
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Removes those remote mount entries on
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.I host
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that do not correspond to current mounts, i.e., which are left-over
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from a crash or are the result of improper mount protocol.
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The actuality of mounts is verified using the entries in
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.BR /etc/mtab .
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.TP
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.B \-v
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Verify remote mounts. Similar to
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.B \-r
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except that only a notification message is printed for each bogus entry
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found. The remote mount table is not changed.
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.TP
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.B \-A
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Issues a command to the remote mountd declaring that ALL of its filesystems
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have been unmounted. This should be used with caution, as it removes all
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remote mount entries pertaining to the local system, whether or not any
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filesystems are still mounted locally.
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.TP
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.B \-q
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Be quiet.
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Suppresses error messages due to timeouts and "Program not registered",
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i.e., due to remote hosts not supporting RPC or not running mountd.
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.TP
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.BI \-h \ name
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Pretend the local hostname is
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.IR name .
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This is useful after the local hostname has been changed and rmtab entries
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using the old name remain on a remote machine.
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Unfortunately, most mountd's won't be able to successfully handle removal
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of such entries, so this option is useful in combination with
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.B \-v
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only.
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.br
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This option also saves time as comparisons of remotely recorded and local
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hostnames by address are avoided.
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.SH FILES
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.PD 0
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.TP 20
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.B /etc/mtab
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List of current mounts.
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.TP
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.B /etc/rmtab
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Backup file for remote mount entries on NFS server.
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.PD
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.SH "SEE ALSO"
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.\" .BR mtab (5),
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.\" .BR rmtab (5),
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.BR mountd (8),
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.BR showmount (8)
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.SH BUGS
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No attempt is made to verify the information in
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.B /etc/mtab
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itself.
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.PP
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Since swap file mounts are not recorded in
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.BR /etc/mtab ,
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a heuristic specific to SunOS is used to determine whether such a mount
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is actual (replacing the string "swap" with "root" and verifying the resulting
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path).
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.PP
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Symbolic links on the server will cause the path in the remote entry to differ
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from the one in
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.BR /etc/mtab .
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To catch those cases, a filesystem is also deemed mounted if its
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.I local
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mount point is identical to the remote entry.
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I.e., on a SunOS diskless client,
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.B server:/export/share/sunos.4.1.1
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is actually
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.BR /usr/share .
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Since the local mount point is
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.B /usr/share
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as well this will be handled correctly.
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.PP
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There is no way to clear a stale entry in a remote mountd after the
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local hostname (or whatever reverse name resolution returns for it)
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has been changed. To take care of these cases,
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the remote /etc/rmtab file has to be edited and mountd restarted.
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.PP
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The RPC timeouts for mountd calls can only be changed by recompiling.
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The defaults are 2 seconds for client handle creation and 5 seconds for
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RPC calls.
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