[PC-BSD Testing] Removable media

pcfxer at rogers.com pcfxer at rogers.com
Wed Oct 1 08:47:21 PDT 2008

I forget which sizes are affected, but it is important to mount that mount_msdosfs must have the "-o large" switch enabled. Most automounters will disregard a device plugged in that is too large, but this may be an issue with the Kauto mount.

Try -o large if mount -t... returns nothing. 


--- On Wed, 10/1/08, Arthur Koziol <A-Koziol at neiu.edu> wrote:
From: Arthur Koziol <A-Koziol at neiu.edu>
Subject: Re: [PC-BSD Testing] Removable media
To: "PC-BSD Testing list" <testing at lists.pcbsd.org>
Received: Wednesday, October 1, 2008, 1:25 PM

> > Yesterday I've mounted (only mounted - nothing more) my player
with FAT fs
> > to my laptop with PC-BSD and today, about 15 mins ago I've got
> > player. So it's not only working wrong, it even cracks my
flash-memory each
> > time I mount it. I'm still gonna try that stuff u told me,
Brodey, but it's
> > gonna be done at late night when I don't need to rush anywhere.
=\ And I'm
> > an optimist too yeah.
> >
>I've been using some FAT formatted USB sticks here, and no problem so
>far. You are un-mounting them before unplugging it right? If you can
>test it via the command-line as suggested, and confirm that it still
>corrupts the FAT tables, we'll need to report this bug with details to
>the FreeBSD team right away:
>Its possible that mount_msdosfs is buggy in this case?


I've been sort of loosely watching this thread. Is there any easy 
test this to see if this is isolated perhaps to certain chipsets on 
certain mothers boards (AMD chipset v. Intel v. NForce v. VIA, etc.) 
that the rest of us can test and confirm? Typically, USB flash drives 
UNDER 2GB will come out of the factory formatted to 2GB. Anything 
OVER 2GB has ot be FAT32 or some other size due to FATs 2GB ceiling. 
I've tried my 4GB and 8GB Sandisk drives with no loss or data error 
but they are formatted FAT32. I have plenty of time to run some tests 
with USB drivers ranging from 128 FAT or FAT32 to 8GB FAT32 to play with.


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