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

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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