linux-kernel - Re: ATA 4 KiB sector issues.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 17 Mar 2010 11:07:19 +0900
From:	Tejun Heo <tj@...nel.org>
To:	"Martin K. Petersen" <martin.petersen@...cle.com>
CC:	James Bottomley <James.Bottomley@...e.de>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Daniel Taylor <Daniel.Taylor@....com>,
	Jeff Garzik <jeff@...zik.org>, Mark Lord <kernel@...savvy.com>,
	tytso@....edu, "H. Peter Anvin" <hpa@...or.com>,
	hirofumi@...l.parknet.co.jp,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>, irtiger@...il.com,
	Matthew Wilcox <matthew@....cx>, aschnell@...e.de,
	knikanth@...e.de, jdelvare@...e.de
Subject: Re: ATA 4 KiB sector issues.

Hello,

On 03/17/2010 12:22 AM, Martin K. Petersen wrote:
>>>>>> "Tejun" == Tejun Heo <tj@...nel.org> writes:
> 
> Tejun> * Anything remotely modern (>= XP) doesn't give a hoot about
> Tejun>   cylinder alignment.
> 
> Tejun> * Anything older (<= 2000) is very likely to get confused with
> Tejun>   custom geometry starting from the BIOS itself.  For those
> Tejun>   cases, the only thing we can do is aligning partitions to
> Tejun>   cylinders abiding BIOS supplied geometry parameters which will
> Tejun>   usually be 255/63.
> 
> Tejun> So, using custom geometry doesn't help compatibility at all.
> 
> Great reads on this topic.  Might be worth linking to:
>
> 	http://www.win.tue.nl/~aeb/partitions/partition_types.html
> 	http://www.win.tue.nl/~aeb/linux/largedisk.html

Thanks for the links.  I'll read and link them.  BTW, if you can spot
something wrong regarding this in the doc, please let me know.  I'm
still learning how all these legacy stuff is supposed to work so there
likely are some points that I got wrong.

-- 
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/