From owner-freebsd-toolchain@FreeBSD.ORG  Sat Nov 19 11:24:18 2011
Return-Path: <owner-freebsd-toolchain@FreeBSD.ORG>
Delivered-To: freebsd-toolchain@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 1233)
	id 56F8F106566B; Sat, 19 Nov 2011 11:24:18 +0000 (UTC)
Date: Sat, 19 Nov 2011 11:24:18 +0000
From: Alexander Best <arundel@freebsd.org>
To: freebsd-toolchain@freebsd.org
Message-ID: <20111119112418.GA42980@freebsd.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Subject: 'make installkernel' succeeding on read-only fs?
X-BeenThere: freebsd-toolchain@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Maintenance of FreeBSD's integrated toolchain
	<freebsd-toolchain.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-toolchain>, 
	<mailto:freebsd-toolchain-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-toolchain>
List-Post: <mailto:freebsd-toolchain@freebsd.org>
List-Help: <mailto:freebsd-toolchain-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-toolchain>, 
	<mailto:freebsd-toolchain-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 19 Nov 2011 11:24:18 -0000

hi there,

just stumbled upon this little detail:

1) have "/" mounted read-only
2) 'make buildkernel'
3) 'make installkernel && echo "success"'
   -> this will fail
4) 'mount -uw /'
5) 'make installkernel && echo "success"'
   -> this will succeed
6) 'mount -ur /'
7) 'make installkernel && echo "success"'
   -> this will succeed. why?

cheers.
alex