From owner-freebsd-hardware Thu Aug 6 16:12:56 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA29993 for freebsd-hardware-outgoing; Thu, 6 Aug 1998 16:12:56 -0700 (PDT) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA29900 for ; Thu, 6 Aug 1998 16:12:26 -0700 (PDT) (envelope-from grog@freebie.lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.9.1/8.9.0) with ESMTP id IAA26243; Fri, 7 Aug 1998 08:41:57 +0930 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.9.1/8.9.0) id IAA11768; Fri, 7 Aug 1998 08:41:55 +0930 (CST) Message-ID: <19980807084155.H9620@freebie.lemis.com> Date: Fri, 7 Aug 1998 08:41:55 +0930 From: Greg Lehey To: Bruce Evans , ks@itp.ac.ru, mike@smith.net.au Cc: hardware@FreeBSD.ORG Subject: Re: IBM 16 GB IDE HDD References: <199808061055.UAA12694@godzilla.zeta.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: <199808061055.UAA12694@godzilla.zeta.org.au>; from Bruce Evans on Thu, Aug 06, 1998 at 08:55:56PM +1000 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Thursday, 6 August 1998 at 20:55:56 +1000, Bruce Evans wrote: >>>>> how can I use the full capacity of my IBM DTTA-351680 16GB IDE drive? >>>>> "wd" driver can see only 8GB, and manual drive geometry installation >>>>> in fdisk did not change it - my FreeBSD-3.0-980311 can see only 8GB. >>>> >>>> See the 'wd' manpage for the option to use LBA addressing for disks > 8GB. >>> >>> There are nothing about it. >> >> You're obviously more out of date than I thought. From a more recent >> wd.4: >> 0x1000 Use LBA addressing instead of the default CHS addressing. > > This is seriously incomplete and out of date. LBA addressing should almost > never be used, since no cases are known where it is necessary, and cases > are known where it causes trashed disks (dumping to any drive where the > default geometry is not the same as the fake LBA geometry). What am I missing here? I thought LBA meant "logical block addressing". Where does "geometry" (by which I understand bogus mapping to cylinder/head/sector values) come into it? Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message