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From: Chris Faylor <cgf AT cygnus DOT com>
Date: Wed, 1 Mar 2000 14:02:33 -0500
To: "Parker, Ron" <rdparker AT butlermfg DOT org>
Cc: "'cygwin-developers AT sourceware DOT cygnus DOT com'" <cygwin-developers AT sourceware DOT cygnus DOT com>
Subject: Re: Setup over a previous installation
Message-ID: <20000301140233.B8271@cygnus.com>
Reply-To: cygwin-developers AT sourceware DOT cygnus DOT com
References: <200003011857 DOT KAA08874 AT cygnus DOT com>
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In-Reply-To: <200003011857.KAA08874@cygnus.com>; from rdparker@butlermfg.org on Wed, Mar 01, 2000 at 12:54:09PM -0600

On Wed, Mar 01, 2000 at 12:54:09PM -0600, Parker, Ron wrote:
>My other concern is that the umount-mount sequence for changing the root
>directory only works from bash and not from the Windows command line.  When
>using the windows command line to issue the (re)mount command, an automount
>occurs in cygwin1.dll.  My current line of thought is that setup.exe will do
>a LoadLibrary on cygwin1.dll followed by an unmount-mount sequence and that
>this should suppress the automount that occurs at the Windows command
>prompt.

You can use the -f flag in newer versions of mount to force a remount of a directory.

mount -b -f c:\cygwin /

You could also just use the getmntent/mount/umount functions, if this is a C program.

I don't know if this helps or not...

cgf