On 05/13/2016 07:06 AM, Nico Kadel-Garcia wrote:
> On Thu, May 12, 2016 at 11:23 AM, Stephen Berg (Contractor)
> <[log in to unmask]> wrote:
>> Having an issue with the df command.  I need it to show me a filesystem's
>> physical mount point, but since I use NFS and automounts quite a bit it
>> chooses to show me the automount mount point instead.  It's screwing up the
>> monitoring software I use, check_mk.
>>
>> For instance:
>> /dev/VolGroup/home    /export/home        xfs    defaults    1 2
>>
>> That gets mounted as shown, but as soon as I login, the automounter will
>> mount it as /home and the check_mk check for that filesystem goes into an
>> unknown state since it can't find it any longer.
>>
>> I've been unable to find any way to get df to show only physical mount
>> points and ignore automount mount points.  I'm seeing this behavior on most
>> all my SL7.2 systems, SL6.7 doesn't seem to have this issue.
> Try this:
>
>      df -P --si | grep ^/dsev/
>
> The "^/dev/" restricts it to real physical mount points, the "-P" puts
> it in more pareseable POSIX format, nad the "--si" is just for
> legibility.
>
Still doesn't fix the problem.

Mount points that are available on the local hardware under 
/export/home/ *AND* through the automounter under /home/ show up under 
/home/ when they should be showing up under their actual mount point, 
/export/home/.

It seems that df is preferring whichever mount point is shorter. Which 
seems extremly arbitrary and rather stupid.


-- 
Stephen Berg
Systems Administrator
NRL Code: 7320
Office: 228-688-5738
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