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?
next prev parent 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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