From owner-freebsd-questions@FreeBSD.ORG Wed Oct 19 19:34:13 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 1233) id 684451065698; Wed, 19 Oct 2011 19:34:13 +0000 (UTC) Date: Wed, 19 Oct 2011 19:34:13 +0000 From: Alexander Best To: freebsd-questions@freebsd.org Message-ID: <20111019193413.GA9065@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: small du(1) question X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Oct 2011 19:34:13 -0000 hi there, the du(1) man page states the following: " -B blocksize Calculate block counts in blocksize byte blocks. This is differ- ent from the -k, -m options or setting BLOCKSIZE and gives an estimate of how much space the examined file hierarchy would require on a filesystem with the given blocksize. Unless in -A mode, blocksize is rounded up to the next multiple of 512. " is this a doc bug, or does du(1) really always assume that every filesystem's blocksize == 512? cheers. alex