From owner-freebsd-questions@FreeBSD.ORG Sun Oct 18 00:49:03 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 41A23106566B for ; Sun, 18 Oct 2009 00:49:03 +0000 (UTC) (envelope-from tajudd@gmail.com) Received: from mail-yx0-f171.google.com (mail-yx0-f171.google.com [209.85.210.171]) by mx1.freebsd.org (Postfix) with ESMTP id EEE358FC16 for ; Sun, 18 Oct 2009 00:49:02 +0000 (UTC) Received: by yxe1 with SMTP id 1so2870583yxe.3 for ; Sat, 17 Oct 2009 17:49:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=+Ko4WXVUGVHeUB5qmIUHOcL+wFgx43CWFd/zfptkudw=; b=HV5rXR7Ibc+V84u8KWHUqFDyiXr0XbcqregxbvcVFXkQ8C0kxWrhrMDGs2Zeg1NF8G cAnyiI5uT59AjzOitYX2NGGUsSxSq5n2vObTKP1etMmTBp/qDy7KWF4q40e2PiVrumor 6p+l5HALFpCYix3TClYaBN9pIxB9uFkpy8ht0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=s2Ahy+TdinGfD/6EnhXwMxYcsQVE/nyGm3efJZbZvqlI/++t/KFeu5gxL5sXG7dTnP /qA0hcYgQFnIPdHqW7JbjAPdl5waivatXO+6d/nMdUUoeNOwSsy467IM6tP9KQKg9rPu dFj8w0TIwAz9/SkVlpNxH6hARl95G4ojckIIA= MIME-Version: 1.0 Received: by 10.101.191.1 with SMTP id t1mr2958864anp.67.1255826942260; Sat, 17 Oct 2009 17:49:02 -0700 (PDT) In-Reply-To: <20091017232131.GB66093@gizmo.acns.msu.edu> References: <1255727601.4640.4.camel@x1-6-00-11-09-00-e4-00.search.b.superkabel.de> <20091016213732.GA61433@gizmo.acns.msu.edu> <20091017232131.GB66093@gizmo.acns.msu.edu> Date: Sat, 17 Oct 2009 18:49:02 -0600 Message-ID: From: Tim Judd To: Jerry McAllister Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-questions@freebsd.org Subject: Re: small question about tape-based dumps 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: Sun, 18 Oct 2009 00:49:03 -0000 On 10/17/09, Jerry McAllister wrote: > You do not need to. dump alrady writes that when it finishes each time. > If you to that, you will get a second one at that location. > > You do not need to do the rewind and mt fsf between each dump. I just > do it to make it very clear to myself in my scripts what I am expecting > and that I am doing it right. > > ////jerry If dump is the tool for tapes, and tar is named after tape archives... Do both of these utilities write the *proper* EOF to whatever medium it's writing to? I bring this up, because dump can also write to a file on a formatted FS. Does the file end with this same EOF? What does tar do? Why have a mt weof function if it's useless? I'm loosing the logic in this one, trying to make sure things work as they should. I admit tapes on bsd are so foreign to me, I might as well be speaking $another-language. Please help.