RPC.UMNTALL(8)						    BSD System Manager's Manual 					    RPC.UMNTALL(8)

NAME

     rpc.umntall -- notify NFS servers about unmounted NFS file systems

SYNOPSIS

     rpc.umntall [-e expire] [-h host] [-k] [-p remotepath] [-v]

DESCRIPTION

     The rpc.umntall utility is proposed in the NFS RPC specification; see NFS Version 3 Protocol Specification, RFC 1813, Appendix I.	It uses
     remote procedure calls to remove mount entries from /var/db/mountdtab on the remote NFS server.  It is called automatically without any
     parameters during startup and shutdown of the system.  This ensures that showmount(8) does not display old and expired entries.  The
     rpc.umntall utility is only needed on client side, where mount_nfs(8) adds a mount entry with the current date to /var/db/mounttab, and
     umount(8) removes the entry again.  The rpc.umntall utility cares about all remaining entries in this table which result from crashes or
     unproper shutdowns.

     The options are as follows:

     -e expire	All entries which are not actually mounted or older than expire (seconds) are removed from /var/db/mounttab.  This may be the case
		for DNS changes or long out of service periods.  Default expire time is 86400 seconds (one day).

     -h host	Only remove the specific hostname.  Send a UMNTALL RPC to the NFS server.

     -k 	Keep entries for existing NFS file systems.  Compare the NFS file systems from the mounttab against the kernel mountlist and do
		not send the RPC to existing mount entries.  Useful during startup of the system.  It may be possible that there are already
		mounted NFS file systems, so calling RPC UMOUNT is not a good idea.  This is the case if the user has rebooted to 'single user
		mode' and starts up the system again.

     -p path	Only remove the specific mount-path.  Send a UMOUNT RPC to the NFS server.  This option implies the -host option.

     -v 	Verbose, additional information is printed for each processed mounttab entry.

FILES

     /var/db/mounttab  mounted nfs-file systems

SEE ALSO

     mount_nfs(8), mountd(8), umount(8)

HISTORY

     The rpc.umntall utility first appeared in FreeBSD 4.0.

AUTHORS

     Martin Blapp <mb@imp.ch>

BSD
								 November 17, 1999							       BSD