From owner-freebsd-stable Wed Oct 30 11:52:24 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7DBC137B401 for ; Wed, 30 Oct 2002 11:52:23 -0800 (PST) Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id C5A5443E3B for ; Wed, 30 Oct 2002 11:52:22 -0800 (PST) (envelope-from dillon@apollo.backplane.com) Received: from apollo.backplane.com (localhost [127.0.0.1]) by apollo.backplane.com (8.12.5/8.12.5) with ESMTP id g9UJqEFC017324; Wed, 30 Oct 2002 11:52:14 -0800 (PST) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.12.5/8.12.5/Submit) id g9UJqDl3017321; Wed, 30 Oct 2002 11:52:13 -0800 (PST) (envelope-from dillon) Date: Wed, 30 Oct 2002 11:52:13 -0800 (PST) From: Matthew Dillon Message-Id: <200210301952.g9UJqDl3017321@apollo.backplane.com> To: "Steve O'Hara-Smith" Cc: jackstone@sage-one.net, hogsett@csl.sri.com, darren780@yahoo.com, freebsd-stable@FreeBSD.ORG Subject: Re: copy harddrive image References: <200210292048.g9TKmG1J015723@axp.csl.sri.com> <3.0.5.32.20021029162139.010ec928@mail.sage-one.net> <200210292239.g9TMdO64011366@apollo.backplane.com> <20021030192629.7b099736.steve@sohara.org> Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG : :On Tue, 29 Oct 2002 14:39:24 -0800 (PST) :Matthew Dillon wrote: : :MD> is absolutely correct. It is safest to run dd only on idle :MD> filesystems, leaving the source filesystems mounted and the : : Mounting the source read only would seem to be safer, or doesn't :a r/o mount block dd from writing ? : :-- :C:>WIN | Directable Mirrors A read-only mount does not block the dd from writing (else the system wouldn't be able to fsck /). -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message