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X-Authentication-Warning: slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date: Thu, 22 Jul 2004 14:10:51 -0400 (EDT)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Nick Sabalausky <nsabalausky05 AT jcu DOT edu>
cc: cygwin AT cygwin DOT com
Subject: Re: No /bin after installation
In-Reply-To: <loom.20040722T193846-97@post.gmane.org>
Message-ID: <Pine.GSO.4.58.0407221402510.20104@slinky.cs.nyu.edu>
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On Thu, 22 Jul 2004, Nick Sabalausky wrote:

> Igor Pechtchanski <pechtcha <at> cs.nyu.edu> writes:
>
> > Just a WAG: is there a "C:/cygwin/bin"?  Also, is there an
> > "HKLM\Software\Cygnus Solutions" key in the registry?  What are its
> > contents?
> > 	Igor
>
> There is no "C:/cygwin/bin".
> There is an "HKEY_LOCAL_MACHINE\Software\Cygnus Solutions".
> It contains the keys: "Cygwin", "Cygwin B20",
> "CYGWIN.DLL setup", and "GNUPro".
>
> The "Cygwin B20" just contains the key "B20.1", but neither
> contain any values.
>
> Hmm, the "Cygwin" key has a key "mounts v2" containing the keys "/",
> "/usr/bin", "/usr/lib", and "/usr/X11R6/lib/X11/fonts". All of those
> have a value labeled "native".  The value for "native" in "/" is
> "D:/Cygwin" which if my installation directory, the values for "native"
> in "/usr/lib" and "/usr/X11R6/lib/X11/fonts" are both subdirectories of
> D:/Cygwin, but for some reason in "/usr/bin" it's
> "c:\cygnus\cygwin-b20\H-i586-cygwin32\bin".

*THAT'S IT*.  That's your problem right here.  Basically, setup will not
change an existing /usr/bin mount, if there is one, and it will install
things into /usr/bin, not /bin, so all of the new apps just went to
wherever /usr/bin pointed to.  Your best bet would probably be to remove
the "HKLM/SOFTWARE/Cygnus Solutions" key altogether, remove "D:\cygwin",
and reinstall from scratch (you may also want to remove
"c:\cygnus\cygwin-b20\H-i586-cygwin32", as it now contains the new Cygwin
executables and is probably unusable).

> That's not good if the installer is mixing up old and new installations
> from completely different paths...

Good point.  This is debatably a bug in the installer.  It *will* check
whether the root mount is different and change the others accordingly, but
it will not touch the /usr/bin and /usr/lib mounts if they point outside
of the root.  Perhaps it should at least issue a warning if this is the
case (as most of the Cygwin software relies on /usr/bin = /bin).  In the
meantime, perhaps the installation guide should mention that if you had an
old (really old) version of Cygwin on your machine, its mounts may confuse
setup.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
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     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

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