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Old 12-19-2013, 02:24 AM   #1
lovelypingu
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Question problem with a partition


hello dear friends,
i have a problem with one of my s-ata drive's partitions.
this problem is that when i check "df -h" output, it shows that 97% of a partition is used.
but when i check its size with "du -sh", the output shows that there is just 57% disk usage.
i done below actions, but the problem didn't solve yet:
1 - check "lsof" and there isn't any program that use this partition.
2 - reboot this machine.
3 - use "quotacheck -augm".
4 - use "fsck -f -C0 -y".
5 - mount and unmount it.

do you have any solution to solve the problem?
 
Old 12-19-2013, 02:44 AM   #2
pan64
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I'm not really sure if there was any problem.
1. df shows the free and used space of the device.
2. du displays the sum of the occupied space of the files. But it may miss some of your dirs (for example the ones beginning with .)
So it would be nice to see exactly how did you execute those commands (and in which dir, which user...)
 
Old 12-19-2013, 10:46 AM   #3
rknichols
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Does that filesystem contain any mount points where other filesystems are mounted? If so, data could be hiding under that active mount point.
 
Old 12-19-2013, 10:42 PM   #4
lovelypingu
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Quote:
Originally Posted by pan64 View Post
I'm not really sure if there was any problem.
1. df shows the free and used space of the device.
2. du displays the sum of the occupied space of the files. But it may miss some of your dirs (for example the ones beginning with .)
So it would be nice to see exactly how did you execute those commands (and in which dir, which user...)
hello dear,
i run this cmd(du -sh) in main directory(mount point).
also i check hidden files with "ls -all", there isn't any hidden file.

Quote:
Originally Posted by rknichols View Post
Does that filesystem contain any mount points where other filesystems are mounted? If so, data could be hiding under that active mount point.
hello dear,
there isn't exists any other mount point for that partition.

Last edited by lovelypingu; 12-19-2013 at 10:44 PM.
 
Old 12-20-2013, 01:35 PM   #5
ondoho
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what is the problem?

i am not sure what the commands 3) and 4) from your first post are supposed to do. can you elaborate?

please show us the complete terminal output from the commands you mentioned in your last post.

and please don't call me dear.
 
Old 12-21-2013, 09:24 AM   #6
lovelypingu
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Smile

hello my friend
i attached the output of the commands.
Attached Images
File Type: gif df_cmd.GIF (3.7 KB, 8 views)
File Type: gif du_cmd.GIF (4.3 KB, 8 views)
 
Old 12-21-2013, 09:57 AM   #7
rknichols
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Quote:
Originally Posted by lovelypingu View Post
there isn't exists any other mount point for that partition.
From the thumbnails, I see that is your root filesystem. It contains mount points I can see for /boot, /home2, /home3, and /tmp, and undoubtedly has several more not shown (/proc, /dev, ...). Any of those mount point directories in the root filesystem could contain files that are hidden from du.

There is a way to access what might be hidden under those mount points.
Code:
mkdir /mnt/tmproot
mount --bind / /mnt/tmproot
du --max-depth=1 /mnt/tmproot
Large numbers for any of your mount point directories show you where data is hidden. You can access that data under /mnt/tmproot to copy it elsewhere or delete it if, for example, it turns out to be an old version of what is now stored in /home3 on /dev/sdc1. After you have finished cleaning out that hidden data, you should
Code:
umount /mnt/tmproot
rmdir /mnt/tmproot
 
Old 12-22-2013, 10:05 PM   #8
lovelypingu
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thank you dear rknichols,
your solution solved my problem.
 
  


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