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From: Jerry McAllister <jerrymc@clunix.cl.msu.edu>
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To: aheyn@lifestylecomm.com (Andrew Heyn)
Date: Tue, 19 Apr 2005 13:10:46 -0400 (EDT)
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Subject: Re: df question
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> -----Original Message-----
> From: owner-freebsd-questions@freebsd.org
> [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Osmany Guirola
> Cruz
> Sent: Tuesday, April 19, 2005 5:37 AM
> To: freebsd-questions@freebsd.org
> Subject: df question
> 
> 
> Hi people
> 
> I do df -h on my machine and got this RARE ouput
> 
> %df -h
> 
> Filesystem     Size    Used   Avail Capacity  Mounted on
> /dev/ad0s1a    7.7G    2.2G    4.9G    31%    /
> devfs          1.0K    1.0K      0B   100%    /dev
> /dev/ad0s1d     65G    9.5G     50G    16%    /usr/home
> 
> %df
> Filesystem  1K-blocks    Used    Avail Capacity  Mounted on
> /dev/ad0s1a   8122126 2328406  5143950    31%    /
> devfs               1       1        0   100%    /dev
> /dev/ad0s1d  68372608 9940308 52962492    16%    /usr/home
> 
> 
> 
> 50G+9.5G=60.5G   but the partition size is 65G ... where are my ~5G,?
> What can i do?

This is well documented and has all been covered numerous and numerous
times in the list.   Basically, a percentage of the disk is held out
for the system (root).   The default is 8% but it can be configured.
Some searching will get you more detailed explanations.

////jerry

> Thanks
> Osmany