From owner-freebsd-questions@FreeBSD.ORG Fri May 30 09:54:23 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0A83437B401 for ; Fri, 30 May 2003 09:54:22 -0700 (PDT) Received: from cfcl.com (cpe-24-221-172-174.ca.sprintbbd.net [24.221.172.174]) by mx1.FreeBSD.org (Postfix) with ESMTP id 57D3643F85 for ; Fri, 30 May 2003 09:54:22 -0700 (PDT) (envelope-from rdm@cfcl.com) Received: from [192.168.254.205] ([192.168.254.205]) by cfcl.com (8.12.6/8.11.1) with ESMTP id h4UGqAbq016586 for ; Fri, 30 May 2003 09:52:10 -0700 (PDT) (envelope-from rdm@cfcl.com) Mime-Version: 1.0 Message-Id: In-Reply-To: <200305300729.41685.kstewart@owt.com> References: <200305300205.45549.kstewart@owt.com> <200305300729.41685.kstewart@owt.com> X-Mailer: Eudora for Macintosh! Date: Fri, 30 May 2003 09:50:07 -0700 To: freebsd-questions@freebsd.org From: Rich Morin Content-Type: text/plain; charset="us-ascii" ; format="flowed" Subject: Re: Boot problem: "ata0: resetting devices" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2003 16:54:23 -0000 At 7:29 AM -0700 5/30/03, Kent Stewart wrote: >I use the Promise TX2 and Maxtor pci cards in several systems. I >just dropped them in and they worked. You would have to boot scsi. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ So, you're saying that I can't boot from an ATA drive on a PCI-based controller card? What is the background for this limitation? Also, I'm curious about the effects of turning off hw.ata.ata_dma; outside of using some CPU time, what are the likely effects of this. For instance, is this likely to slow down disk transfers, assuming that the system is mostly idle? -r -- email: rdm@cfcl.com; phone: +1 650-873-7841 http://www.cfcl.com/rdm - my home page, resume, etc. http://www.cfcl.com/Meta - The FreeBSD Browser, Meta Project, etc. http://www.ptf.com/dossier - Prime Time Freeware's DOSSIER series http://www.ptf.com/tdc - Prime Time Freeware's Darwin Collection