From owner-freebsd-stable@FreeBSD.ORG Wed Apr 27 10:40:18 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1B3CE16A4CE for ; Wed, 27 Apr 2005 10:40:18 +0000 (GMT) Received: from arginine.spc.org (arginine.spc.org [83.167.185.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id CA8E743D62 for ; Wed, 27 Apr 2005 10:40:17 +0000 (GMT) (envelope-from bms@spc.org) Received: from localhost (localhost [127.0.0.1]) by arginine.spc.org (Postfix) with ESMTP id A8FB2651F4; Wed, 27 Apr 2005 11:39:31 +0100 (BST) Received: from arginine.spc.org ([127.0.0.1]) by localhost (arginine.spc.org [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 11298-05; Wed, 27 Apr 2005 11:39:31 +0100 (BST) Received: from empiric.dek.spc.org (82-35-116-62.cable.ubr07.dals.blueyonder.co.uk [82.35.116.62]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by arginine.spc.org (Postfix) with ESMTP id D3080651EB; Wed, 27 Apr 2005 11:39:30 +0100 (BST) Received: by empiric.dek.spc.org (Postfix, from userid 1001) id 26FDC616D; Wed, 27 Apr 2005 11:40:15 +0100 (BST) Date: Wed, 27 Apr 2005 11:40:15 +0100 From: Bruce M Simpson To: Arjan Van Leeuwen Message-ID: <20050427104015.GB5585@empiric.icir.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: cc: freebsd-stable@freebsd.org cc: W C Subject: Re: VIA M1000 mini-itx system installation woes - WRITE_DMA error - cabling? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Apr 2005 10:40:18 -0000 On Wed, Apr 27, 2005 at 10:11:16AM +0200, Arjan Van Leeuwen wrote: > After you've installed the system, insert that line into > /boot/loader.conf, and load up "atacontrol mode 0 udma33 udma33" as > early as possible during the boot (try using /etc/rc.early, for > example) to get it up to speed again. Some drives have firmware tweaks downloadable from the manufacturer which can be used to force the drive to never negotiate a faster data rate than UDMA33 (or whatever the cable you are using is capable of). I'm thinking of Samsung in particular here. However, I agree, this is *annoying*; I don't know of 80 + 4 conductor cables for 2.5" ATA drives. If anyone knows of such things then please do let me know, as I've had significant problems with a development system at work which is Mini-ITX form factor based with a 2.5" drive. Regards, BMS