vfat: why is shortname=lower the default?

[Xuân Baldauf <xuan--2004.03.29--linux-kernel--vger.kernel.org@baldauf.org>]

Hi Hirofumi,

Why is shortname=lower the default mount option for vfat filesystems? 
Because, with "shortname=lower", copying one FAT32 filesystem tree to 
another FAT32 filesystem tree using Liux results in semantically 
different filesystems. (E.g.: Filenames which were once "all uppercase" 
are now "all lowercase").

With "shortname=mixed", such semantic changes would not occur. That's 
why I'd consider "shortname=lower" as default mount option as a bug. I'd 
propose "shortname=mixed" as default as a fix for this bug.

What do you think?

ciao,
Xuân.


P.S.: "man mount" says:

      shortname=[lower|win95|winnt|mixed]

             Defines the behaviour for creation and display of 
filenames which fit into 8.3 characters. If a long name for a file 
exists, it will always be preferred display. There are four modes:

             lower  Force the short name to lower case upon display; 
store a long name when the short name is not all upper case.

             win95  Force the short name to upper case upon display; 
store a long name when the short name is not all upper case.

             winnt  Display the shortname as is; store a long name when 
the short name is not all lower case or all upper case.

             mixed  Display the short name as is; store a long name 
when the short name is not all upper case.

      The default is "lower".

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