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       fixmount - fix remote mount entries


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


       fixmount  is  a  variant  of  showmount(8)  that can delete bogus mount
       entries in remote mountd(8C) 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
              notification 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
              filesystems  have  been  unmounted.   This  should  be used with
              caution, as it removes all remote mount  entries  pertaining  to
              the  local  system,  whether  or  not  any filesystems are still
              mounted locally.

       -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.

       -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
              won’t 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.


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

       ‘‘am-utils’’ info(1) entry.

       Linux  NFS  and  Automounter  Administration  by   Erez   Zadok,   ISBN
       0-7821-2739-8, (Sybex, 2001).

       Amd - The 4.4 BSD Automounter


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

       Since  swap  file  mounts  are  not  recorded in /etc/mtab, a heuristic
       specific 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 filesystem
       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  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 restarted.

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


       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.

                                  26 Feb 1993