Hi,
If you create any partition, by default it ll take 5% of the filesystem blocks reserved for the super-user.This avoids fragmentation, andallows root-owned daemons, such as syslogd(
, to continue to function correctly after non-privileged processes are prevented from writing to the filesystem.
If you do not want this then you have to specify the following option at the time of filesystem creation.
#mke2fs -m reserved-blocks-percentage /dev/hda1
Note:
refer man page of mke2fs