Date: Wed, 11 Apr 2007 11:30:37 +0400 From: Boris Samorodov <bsam@ipt.ru> To: Giorgos Keramidas <keramida@ceid.upatras.gr> Cc: freebsd-questions@freebsd.org Subject: Re: What am I not understanding about /etc/exports? Message-ID: <20516162@srv.sem.ipt.ru> In-Reply-To: <20070411061132.GC45292@parts-unknown.org> (David Benfell's message of "Tue, 10 Apr 2007 23:11:32 -0700") References: <20070406183630.GA56672@parts-unknown.org> <20070406190849.GA1465@kobe.laptop> <20070406222614.GA63630@parts-unknown.org> <20070406225640.GA1562@kobe.laptop> <20070407035704.GB9295@parts-unknown.org> <20070410122426.GA6122@kobe.laptop> <20070410155544.GA4157@parts-unknown.org> <20070410173431.GA8903@kobe.laptop> <24040909@srv.sem.ipt.ru> <20070411061132.GC45292@parts-unknown.org>
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On Tue, 10 Apr 2007 23:11:32 -0700 David Benfell wrote:
> On Tue, 10 Apr 2007 21:50:26 +0400, Boris Samorodov wrote:
> > On Tue, 10 Apr 2007 20:34:31 +0300 Giorgos Keramidas wrote:
> > > On 2007-04-10 08:55, David Benfell <benfell@parts-unknown.org> wrote:
> > > > Apr 10 08:28:59 earth mountd[739]: can't change attributes for /usr
> > > > Apr 10 08:28:59 earth mountd[739]: bad exports list line /usr -alldirs -maproot
> > > > Apr 10 08:28:59 earth mountd[739]: network/host conflict
> > > >
> > > > I've been here before; the FAQ says, "The most frequent problem
> > > > is not understanding the correct format of /etc/exports. Please
> > > > review exports(5) and the NFS entry in the Handbook, especially
> > > > the section on configuring NFS."
> > > >
> > > > Which leads me back to the original question. Here's the file:
> > > >
> > > > / -alldirs -maproot=root 127.0.0.1
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [1]
> > > > #/usr/src -alldirs -maproot=root 127.0.0.1 192.168.19.1
> > > > /usr -alldirs -maproot=root 127.0.0.1 192.168.19.1
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [1]
> > > > /public -alldirs -maproot=root 127.0.0.1 192.168.18.45 192.168.18.46 192.168.19.1
> > > > /home -alldirs -maproot=root 127.0.0.1 192.168.18.45 192.168.18.46 192.168.19.1
> > > > /cdrom -alldirs,quiet,ro 127.0.0.1 -network 192.168 -mask 255.255.0.0
> > > >
> > > > And:
> > > >
> > > > lupin% showmount -e earth.cybernude.org
> > > > Exports list on earth.cybernude.org:
> > > > /public 127.0.0.1 192.168.18.45 192.168.18.46 192.168.19.1
> > > > /home 127.0.0.1 192.168.18.45 192.168.18.46 192.168.19.1
> > > > / 127.0.0.1
> > > > lupin%
> > > >
> > > > As you can see, there are serious discrepancies, here. And I cannot
> > > > see where my syntax is correct on the lines in /etc/exports that work
> > > > and incorrect on the lines which don't work.
> >
> > > Hmmm, something odd is going on. Can you show us the output of the
> > > command:
> >
> > > % cat -vte /etc/exports
> >
> > And:
> >
> > % df
> >
> > as well.
> >
> On the server:
> earth% df
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/ad0s1a 62963306 16456346 41469896 28% /
So, / and /usr are parts of one slice. That's the problem [1]. One can
have only one line per slice at /etc/exports.
> devfs 1 1 0 100% /dev
> /dev/ad0s1d 62963306 208880 57717362 0% /var/db
> /dev/ad2s1d 76168552 48096588 21978480 69% /home
> /dev/ad3s1d 8122126 4 7472352 0% /rvm/data
> /dev/ad3s1e 1012974 4 931934 0% /rvm/log
> /dev/ad3s1f 26657356 4 24524764 0% /vicepa
> /dev/ad2s1e 75200072 2518722 66665346 4% /public
> /dev/ad0s1e 63274730 6595650 51617102 11% /reserve
> linprocfs 4 4 0 100% /usr/compat/linux/proc
> (sfs) 0 0 0 100% /sfs
> (sfswait) 0 0 0 100% .
> /dev/cd0 143168 143168 0 100% /cdrom
> On the client:
> lupin% df
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/ad0s1a 507630 398116 68904 85% /
> devfs 1 1 0 100% /dev
> /dev/ad0s1e 507630 284 466736 0% /tmp
> /dev/ad0s1f 31283108 7822324 20958136 27% /usr
> /dev/ad0s1d 2525166 74342 2248812 3% /var
> 192.168.19.243:/home 76168552 48096604 21978464 69% /home
> linprocfs 4 4 0 100% /usr/compat/linux/proc
> I considered the possibility that /usr/compat/linux/proc might
> be a problem *on the client*, but umounting it there made no difference.
> I'm assuming it can't make any difference on the server side, and I had
> previously tried a more specific directory--/usr/ports--with the same
> result.
> What I would realoly like to do is share /usr/src--if that won't screw up
> a buildworld--and /usr/ports/distfiles; I'm assuming sharing more could
> create problems.
WBR
--
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD committer, http://www.FreeBSD.org The Power To Serve
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