From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ve0-f175.google.com ([209.85.128.175]:58831 "EHLO mail-ve0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751078AbaFVHtd (ORCPT ); Sun, 22 Jun 2014 03:49:33 -0400 Received: by mail-ve0-f175.google.com with SMTP id jx11so4941009veb.20 for ; Sun, 22 Jun 2014 00:49:32 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <6CA8020B-EB92-4A44-8AA5-3F69709F81F2@colorremedies.com> References: <2316027.LZEnVG8laK@xev> <6CA8020B-EB92-4A44-8AA5-3F69709F81F2@colorremedies.com> Date: Sun, 22 Jun 2014 09:49:31 +0200 Message-ID: Subject: Re: btrfs on whole disk (no partitions) From: Imran Geriskovan To: linux-btrfs@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-btrfs-owner@vger.kernel.org List-ID: > The 64KB Btrfs bootloader pad is 8 sector aligned, so for 512e AF disks > there's no problem formatting the whole drive. The alignment problem > actually happens when partitioning it, using old partition tools that don't > align on 8 sector boundaries. There are some such tools still floating > around. A 'somewhat' related question: So called Advanced Format drives has 4K physical sector size, however they report 512B logical sector size. How does linux kernel access those drives? 512B or 4K at a time? Imran