FS#1285 - Info about free Disk space wrong value

Attached to Project: Rockbox
Opened by Anonymous Submitter - Monday, 28 April 2003, 10:23 GMT
Last edited by Daniel Stenberg (bagder) - Wednesday, 17 March 2004, 08:19 GMT
Task Type Bugs
Category Drivers
Status Closed
Assigned To Björn Stenberg (zagor)
Operating System
Severity Very Low
Priority Low
Reported Version Release 2.0
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 0
Private No


Example (from my Archos Recorder):
Disk space: 18,6 GB
occupied: 12,7 GB
free: 5,8 GB
(from PC Properties)

display of free space in Rockbox 2.0: 15,2 GB
This task depends upon

Closed by  Daniel Stenberg (bagder)
Wednesday, 17 March 2004, 08:19 GMT
Reason for closing:  Wont Fix
Additional comments about closing:  Logged In: YES

We can't fix problems in Windows.
Comment by Dave Dyer (ddyer) - Saturday, 07 February 2004, 22:23 GMT

I also saw this problem on my recorder 20. When attached
to the USB port, windows saw free space as 5gb whereas
the number displayed in the info window was 0.1gb

This problem when away after I wiped, formatted, and
reloaded my disk.
Comment by Björn Stenberg (zagor) - Monday, 09 February 2004, 09:15 GMT

Microsoft Windows does not update the free space information
on the disk according to the filesystem specification.
Therefore Rockbox does not know the amount of free space
without recalculating itself (press play).

AFAIK, this problem does not occur when using Linux to copy

To my knowledge, there is nothing we can do about this until
Microsoft either tells us where they store their free space
information, or they start following their own
specification. I'm not holding my breath for either one...
Comment by Dave Dyer (ddyer) - Monday, 09 February 2004, 17:54 GMT

Your explanation doesn't fit all the available data; to wit: the
problem was "fixed" on my box when I wiped the disk and

Also, how does this problem affect space allocation for
Comment by Björn Stenberg (zagor) - Wednesday, 11 February 2004, 20:32 GMT

This problem does not affect space allocation, only the free space
display. It's the sum variable that's wrong, not the block allocation
Comment by Daniel Stenberg (bagder) - Wednesday, 17 March 2004, 08:19 GMT

We can't fix problems in Windows.