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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E72B0C433EF for ; Tue, 22 Feb 2022 20:08:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235440AbiBVUIh (ORCPT ); Tue, 22 Feb 2022 15:08:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235432AbiBVUIc (ORCPT ); Tue, 22 Feb 2022 15:08:32 -0500 Received: from mout.gmx.net (mout.gmx.net [212.227.17.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07035F4D0A for ; Tue, 22 Feb 2022 12:08:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1645560484; bh=9kjP8gHJ8zbxt0nrGOg7pzWmd2T/4X/XzJhvVHrw7mc=; h=X-UI-Sender-Class:Date:To:Cc:From:Subject; b=hs4treuNOBk2/uax7SAHqnzvl2x+IUERbnYioPc9ZnyoGJuvY+m3NC/XV6oq5ENq9 6m+44chJxDbFsVKCUqP0Brmu6Yfw2AfAX6tVCk8Cu9ftGG2hywWdeCnUF/lMYHIGWj /OUGsa/9r98fV5Qoi8WXEAe0Cleh8eCuzoLyTTzM= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [192.168.43.229] ([217.116.116.252]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MRCKC-1nYeh60P3s-00N6oZ; Tue, 22 Feb 2022 21:08:04 +0100 Message-ID: Date: Tue, 22 Feb 2022 21:08:03 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Content-Language: en-US To: linux-kernel@vger.kernel.org Cc: j-p-t@gmx.net From: JPT Subject: blocksize 4096 even for floppy and CDROM? Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:1sJtDLwGrzhoWmGyDwABVwneUGQiyEWTVI7sa6S9rcdRHz8Quyd sRirU7Z3bQzPkjarPm5baV6cNdvtj/HXLqZoYCBFG0iriMfCHq/h8FJKQK+caD9nZXIWftR 6+JrBf3y6jo3i1X3vXYZXbUa4Hv+wDvU2qDSOVMA6yM0u4Bf+T4AdsHF/pUzfVhFqR7PTPZ M6EStHV1/zfYAE8KYF5Sg== X-UI-Out-Filterresults: notjunk:1;V03:K0:5JIqnRmLUlk=:R5CpZ51p84W0UXOkvOp3dJ eDz7DsvVMTzL10KqIMnCjnik6VBwiPLDMp3/S8nfzniPJifRI9I3r1CAQ/lqksicEa7CdM9e4 VRJwwaXh3wx3TZuoSZeWzro1gZXKJK+OPo3yweX0VIuqBNdBkUFFTfOuVlLdEpAswuGKMgg/L +iFAC9fmE72USX5sDusyPHjBhNVcNC84ORTqJXTOBC4tnhZsAdA+4dTtAnG7n6YCInlRTyRhb z7zPDs5M6i74MD547AOlYoI83znfppgyc5AX9FK2K40s/7xGfvvsQpX2FQlDsFM7Z3qAGS4RP TMUUO5y9wRJEVgvgLE7ntOzlznHaiSvrsqsfbPQpd7isJuCPPx5pvDFZG2rmDQ4D1Tq58a9hK ZNQwBGhKn9+a1fl9Citfy8nWZ9Q3iSFAU+bogbeXgyyfuUM69F632gevw0/exHJdKiH4hPkeV BrXtwkv95CRsvI3fmEmTwrGhBPz95cf3lkHw1anWUJ4fiN7qZFLcatl7ALTIIkgnwdZQDZzxx 7wDFRMvE+NGupdIZw5sYr2fPRZUTh2K2YmuAeVi0uqiacc3En+czbwENJuJXyrXEqOPaJ+DsP bWLMEPZ6syP5T0HM8CyO3L4VLlqE9wgWxpwY8kkxakUVo3nr2kNa5um1wjn6KLNvN0jy+K/Js x0eSPyQY7qdSUFuu2XU4dbQNOlyida2TkkquWBV45p1JGefWxkvM1Q4SXdIoe7PDvqQ950lZH wyw39SZb4lgM/2nNwEe0j1bOBjIyiBc1YlUP7FmlHBq7EhMtSgKOeRAM/IsTg/5glHAksUDrW Cc2RnF2yEmlET+qv5M7y4eIJVbKZGFPZKsgZPWp2yERjPJKGWSj80HZf488mEL0ZaXi0fF+No Lo59JpRaSghmUMdAWuUzgF3R+SqqK8wy5yt4b8MqjkDjLomcN5SIMBn85jolYLCW/EvFTMAGk QyrOYaYed77ko3kIE5T6OYYRJLx/t1iXCQwEmYEFwjbw/2NfH0ivfeGgXySGMTdYs4ienM/lQ MBRC5ZqYHsOT/8SK416K0MghKwxzHBNCaV9J0LCGG9XyEdsCdmcYbWUwIJPWCStW5oyHnZMil hk+ln1OpmgblCE= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, sorry for bothering. I fear I need help by a block device pro ;) I try to read several bad floppies and DVDs using safecopy. I wonder why safecopy always says Reported hw blocksize: 4096 Reported low level blocksize: 4096 even if the medium is floppy (512) or CDROM (2048) is this a kernel issue always assuming min 4k block size? Does anybody have an idea if there is a Unix out there that doesn't have this limitation? or which Linux version dropped support for smaller sectors? Or is this simply safecopy's fault? thank you very much for your help. Jan