1.1.7:mount and ls problem

L Anderson lowella@mvseac.com
Tue Jan 23 23:55:00 GMT 2001


Hi Earnie,

Thanks for your reply.  I have commented below:

Earnie Boyd wrote:
> 
> L Anderson wrote:
> 
> > Hi,
> >
> > Being new to Cygwin, I searched the faq and mail archives but could find
> > no answer to my question.  An answer would be appreciated.
> >
> > I'm running Win98 and Cygwin 1.1.7.
> >
> > I have drives ... e:, f:, g: ... on win98.  I installed cygwin on g:.  I
> > fire up cygwin and do:
> >         cd /
> >         mkdir e
> >         mount e: /e
> > All is well -- e shows up in both an ls ( as e) and mount (as e:  /e).
> >
> > Now I do:
> >         mount f: /f
> > I get the error:
> >         mount: warning - /f does not exist
> > but mount shows
> >         f:   f/ . . .
> > and ls doesn't show f.
> 
> Note: it says warning, it doesn't say error.  The non-list would be the
> reason for the warning.  IMO, it's probably time to make it an error.
> 

Ah! Since it says "warning", the "principle of least astonishment"
should not have been violated and therefore, the software should have
acted consistent with my first example, i.e., have done a "mkdir f"
before doing the "mount f: f/"?

At this point, I don't know what you mean by "non-list", so I can't
comment.

Based on the "side effects" of the command sequence, I agree. The
software should have "done it right" or only issued an error message
that said, effectively, "Hey dude, create the damn directory before you
do a mount!  Don't leave it up to me!" :-)

> >
> >
> > If I do an ls f, all the files under f:'s root are listed.
> 
> >
> > If I do mkdir f, I get:
> >         mkdir: cannot make directory `f': File exists
> >
> 
> Yes, another reason for the warning.  You can either umount /f and then do
> the  mkdir /f and mount f:/ /f or you can mkdir /cygdrive/c/cygwin/f
> assuming / is pointed at c:/cygwin
> 

I figured this out but it still doesn't answer why the directory for f
(mount point) looks like any other directory but doesn't show up in an
"ls" in the root?

> >
> > So where is f hiding except in the mount table?
> >
> 
> The mount table, in the windows registry.
>

This confirms what I expected but why doesn't "f" show up in an "ls" in
the root (/)?

> >
> > Why does f seem to work like any other directory (I can cd to it or its
> > subdirs and ls their contents) but not show up in an ls at the root?
> >
> > Is this a bug or a feature?
> >
> 
> It's a feature with old history.
> 

Sounds like the code needs a good "slap side da head"!  Unfortunately,
I'm not there yet.  Is it a problem with "mount", "ls", "cygwinxxx.dll",
or ...?

Thanks for your help!

Lowell Anderson

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