rpc.umntall
—
notify NFS servers about unmounted NFS file systems
rpc.umntall |
[-e expire]
[-h host]
[-k ] [-p
remotepath] [-v ] |
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.
- /var/db/mounttab
- mounted nfs-file systems
The rpc.umntall
utility first appeared in
FreeBSD 4.0.