Re: util-linux /mount / df broken most of the time

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David G. Miller wrote:
Michael Schwendt <mschwendt <at> gmail.com> writes:


On Mon, 04 Feb 2013 22:42:20 +0100, Reindl Harald wrote:

coreutils is reinstalled and clean

i found out that "binutils" was borked and "ld" not found anymore
"ld" is OK after "yum reinstall binutils" but df still does not
show the rootfs

How is that different from bug 887763?

https://bugzilla.redhat.com/887763 : The output of the command "df" (without
any param) omits the line for the root filesystem

Actually, I don't believe that's correct. I think if / comes first in /proc/mounts it shows, otherwise it doesn't. Actually it would be good to sort the mounts and show hardware mounts before bind mounts, even when -a is being used, sort on mount points, and generally make df output more human readable.

Could be the same but interesting that not everyone (including me) sees it.  The
bug suggests looking at the output of:

stat --printf "%d\t%n\n" / /var/lib/nfs/rpc_pipefs

If the numbers for both / and /var/lib/nfs/rpc_pipefs are the same, df doesn't
output a line for /.  If they're different, no problem.

*Sometimes* omits the / line, it's not only bizarre logic, but indeterminate as well. My impression is that a change was made, and instead of thinking about what the user *did* want to see, decisions were made based on what the user *didn't* want to see, in this case the bind mounts.

This is my impression, it may or may not reflect the actual coding process.

Apparently, /var/lib/nfs/rpc_pipefs has something to do with the implementation
of nfs but just enabling an nfs export  and starting the service doesn't cause
the problem.  I'll have to try rebooting the box with nfs server enabled at
start up and see if I can reproduce the problem.

Cheers,
Dave




--
Bill Davidsen <davidsen@xxxxxxx>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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