Received: (at 24448) by debbugs.gnu.org; 19 Sep 2016 16:15:54 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Sep 19 12:15:54 2016 Received: from localhost ([127.0.0.1]:35285 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1bm1EY-0006Qq-BD for submit <at> debbugs.gnu.org; Mon, 19 Sep 2016 12:15:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55106) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <bcl@HIDDEN>) id 1bm1EX-0006Qi-BX for 24448 <at> debbugs.gnu.org; Mon, 19 Sep 2016 12:15:53 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D71E510550; Mon, 19 Sep 2016 16:15:51 +0000 (UTC) Received: from lister.brianlane.com (ovpn-112-106.phx2.redhat.com [10.3.112.106]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u8JGFmRt025813 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 19 Sep 2016 12:15:50 -0400 Date: Mon, 19 Sep 2016 09:15:48 -0700 From: "Brian C. Lane" <bcl@HIDDEN> To: Cris Perdue <cris.perdue@HIDDEN> Subject: Re: bug#24448: Interpretation of partition entry sizes on "4kn" disks Message-ID: <20160919161548.GB23565@HIDDEN> References: <CAOoe=WK4ZFiV9EFSSq8R3njT+gJsjXBTSK6uFPvntR2Xu5NZ6g@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <CAOoe=WK4ZFiV9EFSSq8R3njT+gJsjXBTSK6uFPvntR2Xu5NZ6g@HIDDEN> User-Agent: Mutt/1.7.0 (2016-08-17) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Mon, 19 Sep 2016 16:15:52 +0000 (UTC) X-Spam-Score: -8.1 (--------) X-Debbugs-Envelope-To: 24448 Cc: 24448 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -8.1 (--------) On Thu, Sep 15, 2016 at 01:54:37PM -0700, Cris Perdue wrote: > In partition tables, GPT entries specifically, there are 8 byte fields for > the first and last LBA of the partition. Traditionally logical blocks are > 512 bytes, but some new disks report sector sizes of up to 4096 bytes as > both logical and physical sector size. For these so-called 4kn disks, > should the partition table entries be interpreted as representing units of > 4096 bytes, or does the magic number 512 still apply to their partition > table entries? LBA always refers to the drive's block size. So it may be 512 or 4096 or some other value, depending on what the drive reports. -- Brian C. Lane | Port Orchard, WA (PST8PDT)
bug-parted@HIDDEN:bug#24448; Package parted.
Full text available.Received: (at submit) by debbugs.gnu.org; 15 Sep 2016 21:54:38 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Sep 15 17:54:38 2016 Received: from localhost ([127.0.0.1]:60823 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1bkecA-0001Th-Cf for submit <at> debbugs.gnu.org; Thu, 15 Sep 2016 17:54:38 -0400 Received: from eggs.gnu.org ([208.118.235.92]:55297) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <cris.perdue@HIDDEN>) id 1bkdgf-0008Uj-2C for submit <at> debbugs.gnu.org; Thu, 15 Sep 2016 16:55:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <cris.perdue@HIDDEN>) id 1bkdgY-00065x-At for submit <at> debbugs.gnu.org; Thu, 15 Sep 2016 16:55:08 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, HTML_MESSAGE,T_DKIM_INVALID autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:35609) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <cris.perdue@HIDDEN>) id 1bkdgY-00064z-8H for submit <at> debbugs.gnu.org; Thu, 15 Sep 2016 16:55:06 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46204) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <cris.perdue@HIDDEN>) id 1bkdgV-0001ck-75 for bug-parted@HIDDEN; Thu, 15 Sep 2016 16:55:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <cris.perdue@HIDDEN>) id 1bkdgS-00060S-E2 for bug-parted@HIDDEN; Thu, 15 Sep 2016 16:55:02 -0400 Received: from mail-it0-x229.google.com ([2607:f8b0:4001:c0b::229]:36772) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <cris.perdue@HIDDEN>) id 1bkdgS-0005jp-9V for bug-parted@HIDDEN; Thu, 15 Sep 2016 16:55:00 -0400 Received: by mail-it0-x229.google.com with SMTP id o3so2425830ita.1 for <bug-parted@HIDDEN>; Thu, 15 Sep 2016 13:54:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=HKWPIw7Y/so9iAnHq/s4KB5gKSwLA1ADJrnM5H7eroA=; b=ncnxZJSWj9LWa7sH5FCeZEWzDct96oIplb4kRb3tkoHbHHz/DtqXCaMLm0+4kBqajH ELmWUbkjV+6a/wVEI647awyZGrWs1uuF36jdBCUhSqMErYZPLJvnCy2RbvO3GY8ndDsR I566qHTpmTlIOAhgP4w09AGjs3Q2f8A95YeyRfFZYFhU360nEZFh154IujvVuWLayRvO Dc0l/FcXm0SPiljq5txKRoK7RVAXw/+tFplusYYwIjUHlDbAPxXx63g3DO2V7WJx7XIf ytXDRU1thYOFhNtGneW0JrlIiQ80Lo+ff9fIqYPCaHTONI53kNsTDGSCQ/2fT8uQKj2K WZHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=HKWPIw7Y/so9iAnHq/s4KB5gKSwLA1ADJrnM5H7eroA=; b=GPpy1skUigY5ZxaA1IHpRJowiXUHyb0H0ccqWuCUEdXRF9i/FJmP1j5/PddCn/9OUP W7zYqvS9HDgsTB3RiTh95uukVhxu7VlS2A/jMbM6MTYEPfhFkYfkSXXbFzgwJRZJDJnq MSlj4zGihSdGkMrpGH+ickinkgnHdL2GKUm5EXct3uZqIEAA7nF2Wp6WU+TRur8twyqg UhCYXPwVPv1GKxiMeJkSauokNCsesCbLmAJ1TSwDZx/zlQr+e3nZxoaZEnxdjmoOtHFO 7OMZG5YCZYzLQjJRYzXRkMbfGLektH0GGe/vljxy3F6jbgw06WPACWDGPEpB4qc71i/e 01sQ== X-Gm-Message-State: AE9vXwM8aZUs0r4Xzs5l1vQivIAj8n8nBTJY6EsdF1GVN26sjIiK1lWOiwd9haoAEyD8D6srzBbbN7AsPGemYQ== X-Received: by 10.36.34.204 with SMTP id o195mr1863345ito.29.1473972878244; Thu, 15 Sep 2016 13:54:38 -0700 (PDT) MIME-Version: 1.0 Received: by 10.107.34.147 with HTTP; Thu, 15 Sep 2016 13:54:37 -0700 (PDT) From: Cris Perdue <cris.perdue@HIDDEN> Date: Thu, 15 Sep 2016 13:54:37 -0700 Message-ID: <CAOoe=WK4ZFiV9EFSSq8R3njT+gJsjXBTSK6uFPvntR2Xu5NZ6g@HIDDEN> Subject: Interpretation of partition entry sizes on "4kn" disks To: bug-parted@HIDDEN Content-Type: multipart/alternative; boundary=001a11405748d100db053c920d23 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Thu, 15 Sep 2016 17:54:37 -0400 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -4.0 (----) --001a11405748d100db053c920d23 Content-Type: text/plain; charset=UTF-8 In partition tables, GPT entries specifically, there are 8 byte fields for the first and last LBA of the partition. Traditionally logical blocks are 512 bytes, but some new disks report sector sizes of up to 4096 bytes as both logical and physical sector size. For these so-called 4kn disks, should the partition table entries be interpreted as representing units of 4096 bytes, or does the magic number 512 still apply to their partition table entries? I have been having a hard time determining which would be the expected interpretation. Thanks much, Cris --001a11405748d100db053c920d23 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">In partition tables, GPT entries specifically, there are 8= byte fields for the first and last LBA of the partition. Traditionally log= ical blocks are 512 bytes, but some new disks report sector sizes of up to = 4096 bytes as both logical and physical sector size.=C2=A0 For these so-cal= led 4kn disks, should the partition table entries be interpreted as represe= nting units of 4096 bytes, or does the magic number 512 still apply to thei= r partition table entries?<div><br></div><div>I have been having a hard tim= e determining which would be the expected interpretation.</div><div><br></d= iv><div>Thanks much,</div><div>Cris</div><div><br></div></div> --001a11405748d100db053c920d23--
Cris Perdue <cris.perdue@HIDDEN>:bug-parted@HIDDEN.
Full text available.bug-parted@HIDDEN:bug#24448; Package parted.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997 nCipher Corporation Ltd,
1994-97 Ian Jackson.