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From: Seewer Philippe <philippe.seewer@bfh.ch>
To: Mark Lord <lkml@rtr.ca>
Cc: Francis Moreau <francis.moro@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: Disk geometry from /sys
Date: Wed, 23 Apr 2008 08:53:41 +0200	[thread overview]
Message-ID: <480EDCF5.5000306@bfh.ch> (raw)
In-Reply-To: <480E6A35.4040108@rtr.ca>

Mark Lord wrote:
[snip]
> The earliest IDE drives for Compaq used only CHS sector addressing mode.
> 
> Within four years, though, all new drives had support for the more 
> sensible linear block addressing (LBA) mode, as well.
> 
> LBA has been mandatory in new drives since the early 1990s,
> so there's really no point to CHS addressing any more,
> except when fiddling with MS-DOS style partition tables
> (which have both CHS and LBA values stored inside).

Sorry, can't resist that quip here... Many of the well known x86-based 
OS', OS-installers and even bootloaders from this millenium trusted the 
partition tables c/h/s values to match the bios... causing havoc say 
with PATA drives atached to SATA connectors.

If that weren't the case I guess Linux could have get rid of c/h/s a 
looong time ago. Hmmm... maybe its time?

  reply	other threads:[~2008-04-23  6:53 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-09 20:53 Disk geometry from /sys Francis Moreau
2008-04-09 21:28 ` Lennart Sorensen
2008-04-09 21:52   ` Alan Cox
2008-04-09 22:16   ` Bernd Eckenfels
2008-04-10 14:52     ` Lennart Sorensen
2008-04-10 19:23   ` Francis Moreau
2008-04-09 21:57 ` Mark Lord
2008-04-10 19:05   ` Francis Moreau
2008-04-10 19:53     ` Mark Lord
2008-04-10 12:22 ` linux-os (Dick Johnson)
2008-04-10 19:15   ` Francis Moreau
2008-04-10 13:58 ` Bill Davidsen
2008-04-14 12:57 ` Seewer Philippe
2008-04-15  7:40   ` Francis Moreau
2008-04-16  7:49     ` Seewer Philippe
2008-04-17 14:09       ` Francis Moreau
2008-04-17 14:49         ` Seewer Philippe
2008-04-18 13:22           ` Mark Lord
2008-04-18 13:37             ` Seewer Philippe
2008-04-22 20:11               ` Francis Moreau
2008-04-23  6:44                 ` Seewer Philippe
2008-04-23  6:56                   ` Francis Moreau
2008-04-22 20:16             ` Francis Moreau
2008-04-22 22:44               ` Mark Lord
2008-04-23  6:53                 ` Seewer Philippe [this message]
2008-04-23  7:02                 ` Francis Moreau
2008-04-23  9:33                   ` Seewer Philippe
2008-04-23 13:47                   ` Mark Lord
2008-04-22 20:10           ` Francis Moreau
2008-04-23  6:48             ` Seewer Philippe

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