From owner-freebsd-hackers@FreeBSD.ORG Wed May 28 23:07:45 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BC16E37B401 for ; Wed, 28 May 2003 23:07:45 -0700 (PDT) Received: from puffin.mail.pas.earthlink.net (puffin.mail.pas.earthlink.net [207.217.120.139]) by mx1.FreeBSD.org (Postfix) with ESMTP id 34F1743F85 for ; Wed, 28 May 2003 23:07:45 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from user-38lc0vo.dialup.mindspring.com ([209.86.3.248] helo=mindspring.com) by puffin.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128) (Exim 3.33 #1) id 19LGZg-0003WD-00; Wed, 28 May 2003 23:07:40 -0700 Message-ID: <3ED5A35E.5F313290@mindspring.com> Date: Wed, 28 May 2003 23:06:22 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Joel V References: <000101c325a4$5c918210$0100a8c0@athlon> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a4a3a3d01200bdd2af073d0e834506452b2601a10902912494350badd9bab72f9c350badd9bab72f9c cc: freebsd-hackers@freebsd.org Subject: Re: Problem adding new disk to existing installation (FreeBSD 4.8) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 May 2003 06:07:46 -0000 Joel V wrote: > DEBUG: MakeDev: Unknown major/minor for devtype - > > I changed the ata100 cable. I checked the disk with WD's Data Lifeguard. > The disk also worked fine in a Win2k workstation. All the BIOS settings > are on auto. Someone suggested on doing "cd /dev/ && ./MAKEDEV all", but > this didn't help. Also, FreeBSD detects both disks without problems: > > ad0: 114473MB [232581/16/63] at ata0-master > UDMA100 > ad2: 57241MB [116301/16/63] at ata1-master UDMA100 > > Anyone seen something like this before? I found surprisingly little info > on google. Yeah; on a Via 82C686B IDE controller chip. Force it to UDMA66; if that doesn't help, look for a BIOS update to change your PCI settings. This was recently posted about on freebsd-chat. According to one of the web sites, you can work around it by disabling 2 PCI features in your BIOS, and setting the time-on to 32ms or less. Also on a CMD640B; the fix for that one is to not use the second channel on the IDE controller, and stick a third party disk controller card in one of the slots, instead. Also on a disk on a seondary channel that wasn't jumpered for slave mode, and when mixing disks from two manufacturers (no your problem, if both are WD). -- Terry