linux-kernel - Re: Disk geometry from /sys

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]

Message-ID: <38b2ab8a0804101205s1e0e4fa0l884286ec7ea9ccbd@mail.gmail.com>
Date:	Thu, 10 Apr 2008 21:05:50 +0200
From:	"Francis Moreau" <francis.moro@...il.com>
To:	"Mark Lord" <lkml@....ca>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Disk geometry from /sys

Hi

On Wed, Apr 9, 2008 at 11:57 PM, Mark Lord <lkml@....ca> wrote:
> > I'm trying to know the geometry of my hard disk from a bash script
> > and that's the reason I'm looking in /sys. The reason is that I'd like
> > to figure out the size of a cylinder without doing a
> > ioctl(bdev, HDIO_GETGEO, &geo)
> >
>
>  $ DEV=/dev/sda
>  $ GEOM="`/sbin/hdparm -g $DEV | awk '{print $3}'`"
>  $ echo $GEOM
>  19457/255/63
>  $
>

Sure and you could the same with fdisk, sfdisk, parted outputs...

But that wasn't my point, sorry if it wasn't clear.

I was actually wondering why /sys/block/sda exports a lot of disk
features but the disk geometry. I was wondering if somthing like

/sys/block/sda/geometry/heads

could be useful...

-- 
Francis
--
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/