From: Trond Myklebust <trond.myklebust@fys.uio.no>
Subject: Re: problem with  umount
Date: Fri, 28 Jan 2005 19:13:14 -0800
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To: mehta kiran <kiranmehta1981@yahoo.com>
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fr den 28.01.2005 Klokka 04:37 (-0800) skreiv mehta kiran:

> But if client stays without doing any processing ,
> everything works fine.
> I tried using umount <filesystem> -O -l
> but this does not work though man pages 
> say that even if there are reference to filesystem , 
> it will be unmounted and later do required cleanup.

>From the manpage for "umount":

      -O options
              Indicate  that  the actions should only be taken on file systems
              with the specified options in /etc/fstab.  More than one  option
              type  may  be  specified in a comma separated list.  Each option
              can be prefixed with no to specify options for which  no  action
              should be taken.

AFAIK, there is no "-l" _mount_ option, so it is extremely unlikely that
your NFS-mounted filesystems are listed in /etc/fstab as using it.
You're better off trying with "umount -l /filesystem".

Better still, fix your init scripts so that they kill whatever process
it is that is still using the NFS partition and causing the regular
"umount" to fail: *NIX does NOT allow you to unmount partitions that are
*in use*.

Cheers,
  Trond
-- 
Trond Myklebust <trond.myklebust@fys.uio.no>



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