linux-kernel - Wrong free clusters count on FAT32

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070419085750.GA2833@DervishD>
Date:	Thu, 19 Apr 2007 10:57:50 +0200
From:	DervishD <lkml@...vishd.net>
To:	Linux-kernel <linux-kernel@...r.kernel.org>
Subject: Wrong free clusters count on FAT32

    Hi all :)

    I have a portable device with a FAT32 formatted hard disk in it, and
everytime I delete a file in the device *using the device itself to do
it* the device increases its count of free space and if I plug the
device in a Windows system, Windows agrees on the free space. Linux
doesn't. Linux believes that the files are still there ocuppying space,
and I have to run fsck.vfat to fix the problem.

    As far as I've seen, the device is probably not updating correctly
the list of free clusters, but it doesn't seem to worry about it,
neither does Windows. So my question is: is there any way of making
Linux "bug compatible" with Windows? If Windows itself don't worry about
the free cluster count and computes the free space in some other way,
then it can be done. I haven't seen anything in mount(8) neither
googling.

    Apart from not using the device itself to delete files (and probably
not using Windows for that, either) and to run fsck.vfat now and then,
is anything I can do to avoid this problem?

    Thanks a lot in advance :)

    Raúl Núñez de Arenas Coronado

-- 
Linux Registered User 88736 | http://www.dervishd.net
It's my PC and I'll cry if I want to... RAmen!
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/