Re: File system overhead
did you execute the df command as root? if not, it might report less
free space. there is a reserved space (5% is default for ext2/3, iirc,
however you can set it up differently) that is available only for
root... and since you report 5% in your case...
You can set the percentage of reserved blocks like this...
tune2fs -m number /dev/partition
...where "number" is number of reserved blocks of your total space in
percents and "/dev/partition" is the device that contains EXT2/3 file
system. In this case it would look like...
tune2fs -m 1 /dev/sda9
tune2fs can be found in e2fsprogs package.