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Old 05-21-2007, 06:29 AM   #1
fukawi2
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Question df and du giving grossly different used space


OK, a curiosity I just happened to notice while running a backup of my desktop...
Code:
phillips@phillip-desktop:/home$ sudo df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              29G  3.3G   25G  12% /
varrun                506M   84K  506M   1% /var/run
varlock               506M     0  506M   0% /var/lock
procbususb             10M  148K  9.9M   2% /proc/bus/usb
udev                   10M  148K  9.9M   2% /dev
devshm                506M     0  506M   0% /dev/shm
lrm                   506M   18M  489M   4% /lib/modules/2.6.17-10-generic/volatile
/dev/sda3             116G   67G   44G  61% /home
phillips@phillip-desktop:/home$ sudo du -hs /home
52G     /home
Note that `df -h` tells me that /home has 67gb used, but `du -hs` tells me that /home is only 52gb... Now I could handle a minor variance between the two due to rounding, but 15gb / 30% difference?

Note I sudo'ed both of these command so it shouldn't be permissions or anything. What am I missing?

This is Linux Mint 2.1 "Bianca" which is based on Ubuntu 6.10.
 
Old 05-21-2007, 06:34 AM   #2
lein
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Possibly 52GB free?

116-67=49

Less error. But I am clutching at straws.
 
Old 05-21-2007, 07:41 AM   #3
Wim Sturkenboom
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http://gcolpart.evolix.net/blog21/df...vs-du-command/ might give the answer.
 
Old 05-21-2007, 08:00 AM   #4
druuna
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Hi,

The 'dotted' files are not counted with an ordinary du.

Try this in your homedir:

cd ~
du -sch *

and then

du -sch .*

Hope this helps.

EDIT:

The above is BS. Sorry.

Mmmmm....... this (du -sch .*) will start one dir up, it doesn't take the dot files.

Last edited by druuna; 05-21-2007 at 08:09 AM. Reason: Answer is wrong, explained why
 
Old 05-22-2007, 03:39 AM   #5
fukawi2
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Quote:
Originally Posted by Wim Sturkenboom
Boom boom, that was it
Code:
root@phillip-desktop:~# lsof | grep '(deleted)' | grep home
beagled    4714   phillips   11w      REG        8,3 18865228196    5197427 /home/phillips/.beagle/Log/2007-05-16-19-35-56-Beagle (deleted)
I killed that process, and the file is no longer open but it's still showing a discrepancy - at least I know where it's coming from. fsck might help...

Thanks all for the quick replies!
 
  


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