1.\" 2.\" Copyright (c) 1999 Martin Blapp 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd November 17, 1999 29.Dt RPC.UMNTALL 8 30.Os 31.Sh NAME 32.Nm rpc.umntall 33.Nd Notify NFS servers about unmounted NFS filesystems 34.Sh SYNOPSIS 35.Nm rpc.umntall 36.Op Fl e Ar expire 37.Op Fl h Ar host 38.Op Fl k 39.Op Fl p Ar remotepath 40.Op Fl v 41.Sh DESCRIPTION 42.Nm 43is as command as proposed in the 44.Tn NFS 45RPC specification; see 46.%T "NFS Version 3 Protocol Specification", 47RFC 1813, Appendix I. It uses remote procedure calls 48to remove mount entries from 49.Pa /var/db/mountdtab 50on the remote NFS server. It is called automatically 51without any parameters during startup and shutdown of 52the system. This ensures that 53.Xr showmount 8 54does not display old and expired entries. The 55.Nm 56command 57is only needed on client side, where 58.Xr mount_nfs 8 59adds a mount entry with the current date to 60.Pa /var/db/mounttab, 61and 62.Xr umount 8 63removes the entry again. The 64.Nm 65command 66cares about all remaining entries in this table which result from crashes 67or unproper shutdowns. 68.Pp 69The options are as follows: 70.Bl -tag -width indent 71.It Fl e Ar expire 72All entries which are not actually mounted or older than 73.Ar expire 74(seconds) are removed from /var/db/mounttab. This may be the case 75for DNS changes or long out of service periods. Default expire time 76is 172800 seconds (2 days). 77.It Fl h Ar host 78Only remove the specific hostname. Send a UMNTALL RPC to the NFS server. 79.It Fl k 80Keep entries for existing NFS filesystems. Compare the NFS filesystems from 81the mounttab against the kernel mountlist and do not send the RPC to 82existing mount entries. Useful during startup of the system. It may be 83possible that there are already mounted NFS filesystems, so calling 84RPC UMOUNT isn't a good idea. This is the case if the user has rebooted 85to 'single user mode' and starts up the system again. 86.It Fl p Ar path 87Only remove the specific mount-path. Send a UMOUNT RPC to the NFS server. 88This option implies the 89.Fl host 90option. 91.It Fl v 92Verbose, additional information is printed for each processed mounttab 93entry. 94.El 95.Sh FILES 96.Bl -tag -width /var/db/mounttab -compact 97.It Pa /var/db/mounttab 98mounted nfs-filesystems 99.El 100.Sh HISTORY 101The 102.Nm 103command first appeared in 104.Fx 4.0 . 105.El 106.Sh SEE ALSO 107.Xr mountd 8 , 108.Xr umount 8 , 109.Xr mount_nfs 8 110.Sh AUTHORS 111.An Martin Blapp Aq mb@imp.ch 112