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I am trying to find the mount point of a directory using df -k. It shows the mount point is the same directory.

I know it is not as I see a bunch of directories having the same allocation and the same free space.

I also see umount and mount commands are not working. Neither is free. Only du command works.

The problem is I need to free up some space but I want to know where I need to free the space up to have affect on my directory.

df -k Output: 

/home>df -k

Filesystem    1024-blocks      Free %Used    Iused %Iused Mounted on

/homemast/home/sraja5  1692020552  19509380   99%  6852553     7% /home/sraja5
/homemast/home/mjain3  1692020552  19509380   99%  6852553     7% /home/mjain3
/homemast/home/spura1  1692020552  19509380   99%  6852553     7% /home/spura1
/homemast/home/rshah53  1692020552  19509380   99%  6852553     7% /home/rshah53
/homemast/home/dmurthi  1692020552  19509348   99%  6852553     7% /home/dmurthi

Mount Output: 

mount /home/hhebburs
mount: /home/hhebburs is not a known file system

As you can see in my df output, all home directories have their own mount point. But you see the total space and used space to be the same for all of them. So this means they are mounted in a common place. I was trying to find where they are mounted. Any directions?

terdon
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hemanth
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    Could you perhaps show us the results of both `df -k` and `mount`? –  Oct 12 '15 at 16:13
  • Please show the output of `df` and `mount` – Chen A. Oct 12 '15 at 16:18
  • /home>df -k Filesystem 1024-blocks Free %Used Iused %Iused Mounted on /homemast/home/sraja5 1692020552 19509380 99% 6852553 7% /home/sraja5 /homemast/home/mjain3 1692020552 19509380 99% 6852553 7% /home/mjain3 /homemast/home/spura1 1692020552 19509380 99% 6852553 7% /home/spura1 /homemast/home/rshah53 1692020552 19509380 99% 6852553 7% /home/rshah53 /homemast/home/dmurthi 1692020552 19509348 99% 6852553 7% /home/dmurthi – hemanth Oct 12 '15 at 16:33
  • this is the DF -k output – hemanth Oct 12 '15 at 16:33
  • mount: /home/hhebburs is not a known file system – hemanth Oct 12 '15 at 16:35
  • @hemanth comments don't have great formatting, could you please edit your question to include the output of the `df` and `mount` commands? – Eric Renouf Oct 12 '15 at 17:01
  • @EricRenouf Done – hemanth Oct 12 '15 at 17:10
  • What is the output of running `mount` with no arguments? – Eric Renouf Oct 12 '15 at 17:14
  • From what it looks like there, several users have their home directories mounted from `/homemast/home`, but perhaps not all users do, like, say, `hhebburs` does not so it's just a directory under `/home` and not a specific mount point – Eric Renouf Oct 12 '15 at 17:15
  • Please add the output for `cat /etc/mnttab`. Note that depending on the OS, the file name may be different, so first run `ls -l /etc/m*`to ckeck for the right filename. – schily Oct 12 '15 at 17:16
  • Did you include all the mounted filesystems in your `df -k` output, or did you edit some of them out? If you edited them out please provide the full results. Also, please provide the output of `cd ; pwd; echo "$HOME"` thank you. – roaima Oct 12 '15 at 17:32
  • This looks like the result of [bind mounts](http://unix.stackexchange.com/questions/198590/what-is-a-bind-mount) – Barmar Oct 12 '15 at 20:30
  • @Barmar: How do i see which is the actual mount point of Bind Mounts? – hemanth Oct 13 '15 at 19:03
  • Look for the mount point of the directory it translates to. So for `/home/sraja5`, look at the mount point of `/homemast/home/sraja5`. – Barmar Oct 13 '15 at 19:17
  • @Barmar - Any pointers on how to do that . New to this mount stuff – hemanth Oct 13 '15 at 19:21
  • Use the `mount` command. – Barmar Oct 13 '15 at 19:22
  • Or `df /homemast/home/sraja5` – Barmar Oct 13 '15 at 19:22
  • /home/hhebburs/temp>df -k /homemast/home/sraja5 Cannot find file system /homemast/home/sraja5 – hemanth Oct 13 '15 at 19:27
  • @terdon Unfortunately it is not possible to write comments in a way that it is possible to give the information I put in the answer. – schily Oct 15 '15 at 15:48
  • @schily yes, that would indeed be a useful feature. Unfortunately, there isn't one and all we have is answers. Those, however, have relatively strict rules. And yes, there is a way to [chat](http://chat.stackexchange.com/). The main U&L room is [here](http://chat.stackexchange.com/rooms/26/unix-and-linux). – terdon Oct 15 '15 at 15:58
  • What OS is this? It looks vaguely like a Solaris non-global zone. Perhaps these are loopback mounts? – Jeff Schaller Oct 16 '15 at 15:22

1 Answers1

-1

Try this:

df -a

-a for all includes dummy filesystems

roaima
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AVS
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