From owner-freebsd-hackers Sun Oct 22 4:42:45 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from mail02.syd.optusnet.com.au (mail02.syd.optusnet.com.au [203.2.75.105]) by hub.freebsd.org (Postfix) with ESMTP id 0F31E37B479 for ; Sun, 22 Oct 2000 04:42:41 -0700 (PDT) Received: from echidna.stu.cowan.edu.au (perax6-207.dialup.optusnet.com.au [198.142.92.207]) by mail02.syd.optusnet.com.au (8.9.3/8.9.3) with ESMTP id WAA04129 for ; Sun, 22 Oct 2000 22:41:34 +1100 Message-ID: <39F2D320.74A760FF@echidna.stu.cowan.edu.au> Date: Sun, 22 Oct 2000 19:44:32 +0800 From: Trent Nelson X-Mailer: Mozilla 4.74 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: hackers@FreeBSD.org Subject: Conflicting C/H/S values Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Could someone explain to me why the following HDD BIOS Geometries don't represent the values proposed by the drives. What am I missing? (snippets from boot -v) BIOS Geometries: 0:030c7f3f 0..780=781 cylinders, 0..127=128 heads, 1..63=63 sectors 1:03fefe3f 0..1022=1023 cylinders, 0..254=255 heads, 1..63=63 sectors 2:03fefe3f 0..1022=1023 cylinders, 0..254=255 heads, 1..63=63 sectors 3:026dfe3f 0..621=622 cylinders, 0..254=255 heads, 1..63=63 sectors 0 accounted for These don't correlate to the C/H/S values proposed by the drives: ad0: 8063MB (16514064 sectors), 16383 cyls, 16 heads, 63 S/T, 512 B/S ad1: 9787MB (20044080 sectors), 19885 cyls, 16 heads, 63 S/T, 512 B/S ad2: 3079MB (6306048 sectors), 6256 cyls, 16 heads, 63 S/T, 512 B/S ad3: 4892MB (10018890 sectors), 10602 cyls, 15 heads, 63 S/T, 512 B/S I'm running 5.0 as of mid-September, but I don't think that's the issue as Windows tends to exhibit the same behaviour. Regards, Trent. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message