From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SPF_HELO_NONE,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F03F8C433DB for ; Fri, 15 Jan 2021 16:49:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B46E0221FE for ; Fri, 15 Jan 2021 16:49:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727840AbhAOQtP (ORCPT ); Fri, 15 Jan 2021 11:49:15 -0500 Received: from drop1.michaelkloos.com ([67.205.190.89]:37858 "EHLO drop1.michaelkloos.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725923AbhAOQtP (ORCPT ); Fri, 15 Jan 2021 11:49:15 -0500 Received: from qpc.home.michaelkloos.com (cpe-173-88-115-50.columbus.res.rr.com [173.88.115.50]) by drop1.michaelkloos.com (Postfix) with ESMTPSA id 483BB410DC; Fri, 15 Jan 2021 16:48:04 +0000 (UTC) Subject: Re: FAT12 format does not honor the -R option To: Karel Zak Cc: util-linux@vger.kernel.org References: <20210115162843.kwxrwgfe2wxght72@ws.net.home> From: "Michael T. Kloos" Message-ID: <600001f9-93e4-57db-1b2d-a3e455bb3651@michaelkloos.com> Date: Fri, 15 Jan 2021 11:48:03 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20210115162843.kwxrwgfe2wxght72@ws.net.home> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: util-linux@vger.kernel.org If anyone is curious, I found the answer.  Per this thread: https://github.com/dosfstools/dosfstools/issues/67 You have to use the -a option to disable alignment.  There is discussion in the thread of the addition of a warning to indicate to the user of this unexpected behavior and how to resolve it. On 1/15/21 11:28 AM, Karel Zak wrote: > On Fri, Jan 15, 2021 at 11:01:45AM -0500, Michael T. Kloos wrote: >> "mkfs.vfat -F 12 -R 2 /dev/loop0" does not seem to honor the -R option. > For mkfs.vfat see https://github.com/dosfstools/dosfstools. It's not > maintained by util-linux project. > > Karel >