df command bug

Hi,
I was just using df command and compared the result
for / file system. Here is my analysis

For e.g when you add Used and Available space for /
file system and compare total ; it seems does not
match. Also when Used percentage is calculated, it
shows wrong result when calculated manualy.

Filesystem           1k-blocks      Used Available
Use% Mounted on	Used  + Available = total     DF o/p
/dev/ram0                62941     46582     13109 
79% /  			46582 + 13109  = 59691  NOT EQUAL TO ( df =
62941     )
/dev/md0                101018     77689     18113 
82% /boot  		 77689 + 18113 = 95802  NOT EQUAL TO (df
=  101018    )

/dev/ntvg/_opt_apps     519488    280852    238636 
55% /opt/apps 	280852 + 238636  = 519488 EQUAL TO (df
= 519488   )


Thanks
Elangovan



	
		
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