> > default block size with new linux dists (2.2 based) is 4kB instead of 1kB
> > so we have lot of waste.
> 
> mke2fs(8) will tell you that it is dependand on the fs size.

yes..on large fs it's almost always 4kB. 

> > 
> > because this means filesystem with files of rubbish, but in consistent
> > state.
> 
> Right - exactly the statment I wanted to hear.  What does it help me to have a
> 'consinstent' fs that lost my data.  Fsck should (and actually e2fsck does, even
> if you sometimes have to press 'y' very often) be able to fix the consistency -

do you like to press y very ofted when machine is 100 km away?