From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1S4NLO-0000rd-Uj for garchives@archives.gentoo.org; Mon, 05 Mar 2012 02:08:12 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 4BB52E0A00; Mon, 5 Mar 2012 02:07:48 +0000 (UTC) Received: from svr-us4.tirtonadi.com (svr-us4.tirtonadi.com [69.65.43.212]) by pigeon.gentoo.org (Postfix) with ESMTP id 4FDA9E0839 for ; Mon, 5 Mar 2012 02:06:03 +0000 (UTC) Received: from mail-vx0-f181.google.com ([209.85.220.181]) by svr-us4.tirtonadi.com with esmtpsa (TLSv1:RC4-SHA:128) (Exim 4.69) (envelope-from ) id 1S4NJK-003Gdu-Vm for gentoo-user@lists.gentoo.org; Mon, 05 Mar 2012 09:06:03 +0700 Received: by vcge1 with SMTP id e1so2201144vcg.40 for ; Sun, 04 Mar 2012 18:06:00 -0800 (PST) Received-SPF: pass (google.com: domain of pandu@poluan.info designates 10.52.17.82 as permitted sender) client-ip=10.52.17.82; Authentication-Results: mr.google.com; spf=pass (google.com: domain of pandu@poluan.info designates 10.52.17.82 as permitted sender) smtp.mail=pandu@poluan.info Received: from mr.google.com ([10.52.17.82]) by 10.52.17.82 with SMTP id m18mr31471078vdd.89.1330913160432 (num_hops = 1); Sun, 04 Mar 2012 18:06:00 -0800 (PST) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.52.17.82 with SMTP id m18mr26967686vdd.89.1330913160420; Sun, 04 Mar 2012 18:06:00 -0800 (PST) Received: by 10.220.58.200 with HTTP; Sun, 4 Mar 2012 18:06:00 -0800 (PST) Received: by 10.220.58.200 with HTTP; Sun, 4 Mar 2012 18:06:00 -0800 (PST) In-Reply-To: References: Date: Mon, 5 Mar 2012 09:06:00 +0700 Message-ID: Subject: Re: [gentoo-user] Re: Gentoo on a Dell XPS 13 Ultrabook From: Pandu Poluan To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary=bcaec50405d6275c7d04ba755ecc X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - svr-us4.tirtonadi.com X-AntiAbuse: Original Domain - lists.gentoo.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - poluan.info X-Archives-Salt: a9cb325c-5a74-4594-8853-a3addaab024e X-Archives-Hash: f40d51da5416c0a95c354185893d9b87 --bcaec50405d6275c7d04ba755ecc Content-Type: text/plain; charset=UTF-8 On Mar 5, 2012 4:59 AM, "Grant" wrote: > > > All my drives says this from fdisk: > > Units = sectors of 1 * 512 = 512 bytes > Sector size (logical/physical): 512 bytes / 512 bytes > I/O size (minimum/optimal): 512 bytes / 512 bytes > > So it doesn't matter where the first partition starts? > Older BIOSes don't understand that hard disks now can have 4KiB sectors, so some of the "advanced format" hard disks report a sector size of 512B. But behind the scenes, the hard disk maps the logical sector to a subsector of the physical sector. The only sure fire way to find out if your hard disk uses 4KiB sectors is to open your computer and eyeball the hard disk. All 4KiB hard disks that I know of have statements on their surface that tell me so. Rgds, --bcaec50405d6275c7d04ba755ecc Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On Mar 5, 2012 4:59 AM, "Grant" <emailgrant@gmail.com> wrote:
>
>
> All my drives says this from fdisk:
>
> Units =3D sectors of 1 * 512 =3D 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
>
> So it doesn't matter where the first partition starts?
>

Older BIOSes don't understand that hard disks now can have 4KiB sect= ors, so some of the "advanced format" hard disks report a sector = size of 512B. But behind the scenes, the hard disk maps the logical sector = to a subsector of the physical sector.

The only sure fire way to find out if your hard disk uses 4KiB sectors i= s to open your computer and eyeball the hard disk. All 4KiB hard disks that= I know of have statements on their surface that tell me so.

Rgds,

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