der Mouse <mouse@Rodents.Montreal.QC.CA> writes:

> I certainly prefer it to having to wait for fsck to run - or risk
> mounting the device without - just to get some idea how full it is.

dumpfs -s will reveal the information, though it takes a little
processing to extract.

-- 
(let ((C call-with-current-continuation)) (apply (lambda (x y) (x y)) (map
((lambda (r) ((C C) (lambda (s) (r (lambda l (apply (s s) l))))))  (lambda
(f) (lambda (l) (if (null? l) C (lambda (k) (display (car l)) ((f (cdr l))
(C k)))))))    '((#\J #\d #\D #\v #\s) (#\e #\space #\a #\i #\newline)))))