From owner-freebsd-questions Sat Sep 28 10: 4:54 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DB81737B401 for ; Sat, 28 Sep 2002 10:04:53 -0700 (PDT) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4EB8D43E4A for ; Sat, 28 Sep 2002 10:04:53 -0700 (PDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.6/8.12.5) id g8SH4qjK089886; Sat, 28 Sep 2002 12:04:52 -0500 (CDT) (envelope-from dan) Date: Sat, 28 Sep 2002 12:04:52 -0500 From: Dan Nelson To: "Hartmann, O." Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Writing to tape drive produces invalid requests Message-ID: <20020928170452.GG7711@dan.emsphone.com> References: <20020928183805.S12511-100000@klima.physik.uni-mainz.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020928183805.S12511-100000@klima.physik.uni-mainz.de> X-OS: FreeBSD 5.0-CURRENT X-message-flag: Outlook Error User-Agent: Mutt/1.5.1i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In the last episode (Sep 28), Hartmann, O. said: > Hello. > > While writing to a tape drive unit I get this kernel log: > > (sa0:sym1:0:5:0): Invalid request. Fixed block device requests must be a multiple of 1024 bytes Try running "mt blocksize 0" to enable variable-length blocks. I think ancient QIC tape drives are the only ones that require a fixed blocksize. -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message