Re: [bug?] df and du -s output inconsistent?
On Thu, Mar 09, 2000 at 09:24:41AM +0900, Olaf Meeuwissen wrote:
> Hi all,
> Yesterday I got an I/O error telling me that the /home file system was
> full. Bummer! Checked with df and sure 0% free in /home. Looked all
> over /home to find disk hogs and removed a really big .xsession-errors
> file---still have to find out what caused that---and thought all would
> be well again. Unfortunately, nope! I'v since removed some more gunk
> and can work again, but ...
> There is something funny about the output of df and du -s. Just take
> a look at the typescript below:
> bash-2.03$ df /home
> Filesystem 1k-blocks Used Available Use% Mounted on
> /dev/hda7 2058900 1652232 300239 85% /home
> bash-2.03$ du -s /home
> 661643 /home
> According to df about 1.6Gb of the /home partition are used whereas du
> -s says it about 1Gb less. Who's wrong? Or am I missing something?
> Thanks in advance.
im too lazy to do the math but remember that ext2 filessytems reserve
by default 5% of the filesystem for the superuser, you can see this
descrepency in df on an empty filesystem where is says only 100K or
such is used and yet available is 5% less then 1k-blocks.
you can adjust this with tune2fs.