Strange USB Pen problem

[Paul F. Johnson]

Hi,

Just noticed this one. What component should the bug get put under
though?

If I use my USB pen and transfer something to it where the filename is
all uppercase, the filename is converted to all lowercase (for example
SENDA becomes senda).

Everything still works, but it's a strange one.

TTFN

Paul

[Gustavo A. Lozano]

Dont sure, but probably your usb pen have an FAT filesystem...

I am guessing here..

On Tue, 2005-05-31 at 00:31 +0100, Paul wrote:
> Hi,
>
> Just noticed this one. What component should the bug get put under
> though?
>
> If I use my USB pen and transfer something to it where the filename is
> all uppercase, the filename is converted to all lowercase (for example
> SENDA becomes senda).
>
> Everything still works, but it's a strange one.
>
> TTFN
> Paul
>
> fedora-test-list mailing list
> [e-mail]
> To unsubscribe: 
> http://www.redhat.com/mailman/listinfo/fedora-test-list

[Paul F. Johnson]

Hi,
> Dont sure, but probably your usb pen have an FAT filesystem...
>
> I am guessing here..

Even if it was FAT32, I've never seen a name translation like that
before.

TTFN

Paul

[Michael A. Peters]

On Tue, 2005-05-31 at 06:39 +0100, Paul wrote:
> Hi,
> > Dont sure, but probably your usb pen have an FAT filesystem...
> >
> > I am guessing here..
>
> Even if it was FAT32, I've never seen a name translation like that
> before.

fat 32 is not case sensitive or case preserving.

[Gustavo A. Lozano]

fat 16?

On Tue, 2005-05-31 at 06:39 +0100, Paul wrote:
> Hi,
> > Dont sure, but probably your usb pen have an FAT filesystem...
> >
> > I am guessing here..
>
> Even if it was FAT32, I've never seen a name translation like that
> before.
>
> TTFN
> Paul
>
> fedora-test-list mailing list
> [e-mail]
> To unsubscribe: 
> http://www.redhat.com/mailman/listinfo/fedora-test-list

[Paul F. Johnson]

Hi,
> fat 16?

Was that the screwed up filer used for Win95? Is there any way of
determining the format of the pen?

TTFN

Paul

[Daniel Gonzalez]

you should be able to see how the OS recognizez it by tailing 
/var/log/messages or looking at dmesg after the device is connected to 
the computer.
At least that's how I did it on Slackware. (New to fedora)

Hope that helps
Dan Gonzalez

Paul Johnson wrote:
> Hi,
> > fat 16?
>
> Was that the screwed up filer used for Win95? Is there any way of
> determining the format of the pen?
>
> TTFN
>
> Paul

[Gustavo A. Lozano]

mount command

for example, with my usb card:
# mount
.......
........
/dev/sda1 on /media/USBFLASH type vfat
(rw,nosuid,nodev,_netdev,user=glozano)

On Tue, 2005-05-31 at 14:33 +0100, Paul Johnson wrote:
> Hi,
> > fat 16?
>
> Was that the screwed up filer used for Win95? Is there any way of
> determining the format of the pen?
>
> TTFN
> Paul
>
> "He's not the Messiah, he's a very naughty boy"
> Life of Brian, Monty Python

[Guy Fraser]

On Tue, 2005-31-05 at 06:39 +0100, Paul wrote:
> Hi,
> > Dont sure, but probably your usb pen have an FAT filesystem...
> >
> > I am guessing here..
>
> Even if it was FAT32, I've never seen a name translation like that
> before.
>
> TTFN
>
> Paul

I use a USB/Firewirewire drive to hold all my MP3's. There are a 
number of instances where file names change.

ALLUPPER.EXT => allupper.ext

A1234567.EXT => a1234567.ext

Abcdefgh.Ext => abcdefgh.ext

It seems that unless you have a non alphanumeric character and 
the file name is 8 or less characters the filename is converted 
to lowercase. If you have more than 8 characters or have a non 
alphanumeric character, then the case is preserved. You can also 
get errors like "Can not copy file to null" this indicates that 
two or more filenames would be converted to the same thing.

Example.

File.EXT and File.ext would both be converted to file.ext and 
would cause the conflict.

What can we say... M$ file system == :-(

[Miloslav Trmač]

On Wed, Jun 01, 2005 at 08:47:34AM -0600, Guy Fraser wrote:
> I use a USB/Firewirewire drive to hold all my MP3's. There are a 
> number of instances where file names change.
>
> ALLUPPER.EXT => allupper.ext
>
> A1234567.EXT => a1234567.ext
>
> Abcdefgh.Ext => abcdefgh.ext
>
> It seems that unless you have a non alphanumeric character and 
> the file name is 8 or less characters the filename is converted 
> to lowercase.

(man mount), search for "shortname=".  Can that explain the behavior?
> File.EXT and File.ext would both be converted to file.ext and 
> would cause the conflict.

FAT is case-preserving, but case-insensitive.  You can't have two
files with the "same [case doesn't matter]" name.
    Mirek

[Camilo Mesias]

Paul
> Just noticed this one. What component should the bug get put under
> though?
>
> If I use my USB pen and transfer something to it where the filename is
> all uppercase, the filename is converted to all lowercase (for example
> SENDA becomes senda).
>
> Everything still works, but it's a strange one.

Have you tried mounting manually with the option shortname=win95? This 
is documented in the kernel docs:

http://cvs.sourceforge.net/viewcvs.py/linuxsh/kernel/Documentation/filesyste...

I found that 8.3 names without differing case were being shown as lower 
case, and this was confusing things like rsync.

I have to do this for a FAT32 mp3 player and I would love to know how to 
make the hotplug system support the option (both using updfstab and the 
newer system).

-Cam