Date: Sun, 10 Aug 1997 15:15:03 -0500 (CDT) From: "Wayne M. Barnes" <wayne@barnes1.wustl.edu> To: freebsd-questions@freebsd.org Subject: NFS ignores mount point. It's happening again. Message-ID: <199708102015.PAA08219@barnes1.wustl.edu>
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Dear FreeBSDers,
mount newcomputer:/ /newcomputer
(cd /usr; tar cf - .)|(cd /newcomputer/usr; tar xvf -)
df on new computer shows / filling up, and /usr not changing
at all. The NFS mount is ignoring and disrespecting the mount points
on newcomputer. The tar copy is filling up /, ***under the /usr mount point***
Is this misbehaviour, or what? Is this a bug in mount, NFS, tar, or me?
Wayne M. Barnes, Ph.D. wayne@barnes1.wustl.edu
Biochemistry Dept. 8231 or barnes@biodec.wustl.edu
Washington Univ. Medical School 314.362.3351 fax 7183
660 South Euclid Ave., St. Louis, MO 63110
http://barnes1.wustl.edu Just plain Taq is old tech anymore.
-------Previous mail on this subject: -------------
Subject: slash filesystem full identified
To: dnelson@emsphone.com (Dan Nelson)
Dear Dan,
Brilliant! There's a lot of stuff there. (bin, include,
lib, libdata, libexec).
I was able to go into fixit mode using the 2d "live" CDrom,
delete the offending under-usr, then make usr over again empty, then
reboot.
Thank you, Dan! I wonder how all that stuff got there? This
was a very fresh install. About the only thing I have tried to do
with this computer
(and not succeeded) is to tar-copy everything over from my other computer,
(running 2.2.1, having mounted this 2.2.2 / directory as an NFS drive
on the 2.2.1 mountpoint /newcomputer
with root-writing privileges. It is as if the NFS mounting ignored
the new computer's mounting on the /usr mount point, and "under-wrote" it.
I tried to untar to /usr from the 2.2.1 computer to the new 2.2.2 computer.
I gave a command like
(cd /; tar cf - .) | (cd /newcomputer; tar xf -) &
The tar command began to fail, (I think now because it was using
the wrong usr directory). If I try this again, and
it happens again, you will hear from me again, because this doesn't sound
right to me.
Wayne M. Barnes, Ph.D. wayne@barnes1.wustl.edu
> In the last episode (Aug 05), Wayne M. Barnes said:
> > Dear FreeBSD,
> >
> > Why is my / filesystem unusably full? I can't account
> > for more than 13.3 MB, and I have room for 52 MB, yet it
> > is unwritably full.
> >
> > #df
> > Filesystem 1K-blocks Used Avail Capacity Mounted on
> > /dev/wd0a 51791 51791 -4143 109% /
> > /dev/wd0s3e 2129022 260555 1698146 13% /usr
> > /dev/wd0s3f 29727 486 26863 2% /var
> > procfs 4 4 0 100% /proc
> >
> > #du -sx
> > 13227 .
>
> Try unmounting /usr and /var (and /proc if you can), and see if there
> are any files underneath the mount points.
>
> -Dan Nelson
> dnelson@emsphone.com
>
>
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