Date: Sun, 05 Jan 2003 07:10:37 -0800 From: richard childers / kg6hac <fscked@pacbell.net> To: lewiz <purple@lewiz.info> Cc: freebsd-mobile@freebsd.org, FreeBSD-questions <freebsd-questions@freebsd.org> Subject: Re: Working around problems when an NFS server dies / is unavailable. Message-ID: <3E184AED.B5A37863@pacbell.net> References: <20030105001254.GA48290@lewiz.org> <3E1781E0.20D76CB8@pacbell.net> <20030105113403.GE48290@lewiz.org>
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Make sure no one (including you) is using (including your shell's current working
directory) the directory which is acting as a mount point, when you umount(8).
Otherwise, you'll get a message about the filesystem being in use ... (-:
-- richard
lewiz wrote:
> On Sat, Jan 04, 2003 at 04:52:48PM -0800, richard childers / kg6hac wrote:
> > I seem to recall a 'nomount' option in fstab(5), the manual page that
> > describes the contents of the /etc/fstab ('filesystem table') file.
> >
> > That plus amd(8) should, in theory, get you a relatively stateless NFS
> > connection.
>
> I must admit, I've never worked with amd but it may be worth a try -- it
> can't be any worse than the situation I'm in at the moment. Thanks for
> bringing it to my attention ;)
>
> > I've had some success using 'umount -f' to forcibly umount NFS filesystems,
> > from the client side, in the past.
>
> This surprised me. I had assumed a forced umount would actually force
> the umount, yet, it seems not to have done. I am confuzed as to what is
> and what isn't a bug (often I'm screwing things up myself, I'm sure).
> Do you think this would count as a bug? If other people have had
> problems too, it almost suggests it might be.
>
> > However, NFS, while stateless in intent, is really not a good
> > infrastructural element for a plug-and-play network. Plugging in is easy;
> > unplugging may require an explicit shutdown to properly deallocate
> > resources.
>
> Yeah, I'm starting to learn this now. I don't really know what else to
> use. I've heard of CODA and even AFS but I don't know their suitability
> to my purpose. I think I might do a bit more research then ask again on
> this list.
>
> Thanks for your information, I'll go read about amd ;)
>
> -lewiz.
>
> --
> All true wisdom is found on T-shirts.
> ------------------------------------------------------------------------
> --|| url: http://lewiz.info/ | http://www.westwood.karoo.net/pgpkey ||--
>
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