Problems on case-sensitive file systems

[Thomas Wolff]

Am 23.10.2014 17:36, schrieb Corinna Vinschen:
> On Oct 23 14:42, Thomas Wolff wrote:
>> Am 22.10.2014 16:00, schrieb Corinna Vinschen:
>>> On Oct 22 09:01, Thomas Wolff wrote:
>>>> I'm facing a number of issues with case-sensitivity which I've collected:
>>>>
>>>> There is a documented limitation on case-sensitivity using drive letter
>>>> paths,
>>>> also mentioned in https://sourceware.org/ml/cygwin/2013-08/msg00090.html
>>>> (last item). I vaguely remember seeing a reason for this limitation in some
>>>> mail but can't find it again. I think it would be good to remove this
>>>> limitation because it breaks user expectations when working on
>>>> case-sensitive drives.
>>> The user expectation when using DOS paths is caseinsensitivity in the
>>> first place.  But, as usual, there's no way to do this right, since
>>> somebody will have another POV.  My stance is, don't use DOS paths when
>>> using Cygwin.  At leats don't use DOS paths if you have any expectations
>>> about special POSIX path handling on Cygwin.
>> I use an application that uses Windows or mixed paths, I cannot influence
>> it. So while I understand your POV, it would still be helpful to have path
>> interpretation fully-featured. (If you point me to a place in winsup, I
>> might even try to do something myself.)
> I'm not going to apply a patch to do that.  DOS paths get no special
> treatment, they are always handled with DOS/Windows defaults.
Any last chance to get a distinction here between X:\dos\paths and 
X:/mixed/paths?

>>>> According to documentation, the posix mount flag is enforced to be the same
>>>> for all mounts below /cygdrive; is there a strong reason?
>>> Yes.  The flags are shared between all cygdrive paths.  If you need
>>> something else, don;'t use the cygdrive path, but another, manually
>>> added mount point.  Note that this:
>>>
>>>   none /cygdrive cygdrive binary,posix=0,user 0 0
>>>   D: /cygdrive/d ntfs binary,nouser,posix=1,noumount 0 0
>>>
>>> does NOT work.  The manual paths must not overlap with the cygdrive
>>> paths.
>> I know and I did use a different path (maybe too similar to get
>> recognized...). But it does not seem to work properly:
>> I have now this in /etc/fstab:
>> C: /mnt/c ntfs binary,nouser,posix=1,noumount 0 0
>> T: /mnt/t smbfs binary,user,posix=1,noumount,auto 0 0
> Drop the noumount and it will work.  noumount is an unknown mount flag
> and, FWIW, not documented in
> https://cygwin.com/cygwin-ug-net/using.html#mount-table
Ah! Thanks.
That reminds me of that other problem I had previously observed but 
forgotten:
mount does not report option errors...
Also:
mount suggests this problem itself by reporting that very unknown option 
when running just 'mount'
And as a last, minor issue:
mount does not work on relative paths (like it does on Unix/Linux) but 
needs an absolute path:
mount /mnt/c # works
cd /mnt; mount c # does not work
------
Thomas

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