From owner-freebsd-questions@FreeBSD.ORG Mon Mar 4 09:47:40 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id A844BC13 for ; Mon, 4 Mar 2013 09:47:40 +0000 (UTC) (envelope-from rfg@tristatelogic.com) Received: from outgoing.tristatelogic.com (segfault.tristatelogic.com [69.62.255.118]) by mx1.freebsd.org (Postfix) with ESMTP id 87A6494A for ; Mon, 4 Mar 2013 09:47:40 +0000 (UTC) Received: from segfault-nmh-helo.tristatelogic.com (localhost [127.0.0.1]) by segfault.tristatelogic.com (Postfix) with ESMTP id 743D13B3C5 for ; Mon, 4 Mar 2013 01:47:24 -0800 (PST) From: "Ronald F. Guilmette" To: freebsd-questions@freebsd.org Subject: Confused by restore(8) man page example Date: Mon, 04 Mar 2013 01:47:24 -0800 Message-ID: <4861.1362390444@server1.tristatelogic.com> X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Mar 2013 09:47:40 -0000 In the man page for restore(8) I see the following: The -r flag ... can be detrimental to one's health if not used carefully (not to mention the disk). An example: newfs /dev/da0s1a mount /dev/da0s1a /mnt cd /mnt restore rf /dev/sa0 Personally, I utterly fail to see what point the author is attempting to illustrate with the above example. I mean what part of this, exactly, may be "detrimental to one's health" ? It's an enigma to me. All I see is a pre-existing BSD partition being explicitly newfs'ed and then mounted, followed by some stuff being restored to that (clean) BSD partition from whatever is currently sitting on the tape drive called /dev/sa0. So? What possible problem could derive from merely that? I don't see any. What's the problem? I'm confused.