From owner-freebsd-questions@FreeBSD.ORG Fri Mar 18 06:48:15 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5553C106564A for ; Fri, 18 Mar 2011 06:48:15 +0000 (UTC) (envelope-from wtf.jlaine@gmail.com) Received: from mail-ww0-f50.google.com (mail-ww0-f50.google.com [74.125.82.50]) by mx1.freebsd.org (Postfix) with ESMTP id D3C1C8FC18 for ; Fri, 18 Mar 2011 06:48:14 +0000 (UTC) Received: by wwc33 with SMTP id 33so4497128wwc.31 for ; Thu, 17 Mar 2011 23:48:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:date:to:cc:subject:message-id :mail-followup-to:references:mime-version:content-type :content-disposition:in-reply-to:user-agent:x-operating-system; bh=AphyzPrLLuJPmDn17kCQtZgtIRQknPGBUL5Bn8+fsIE=; b=grGLs8luJx6qXW5CtEUHu+SEpCiHgw3D80XlKOBycMphWJ5y+/tEJOsn9QnidVUuDy B5ENU9sHL6Lk8edBfCK+I/KDvD05COfwmiyrloWjxo5P4/ki4sNhD96YD/mQa6+aqxXm PKxClpl2Vmws1xff6r+Hk7zgfsYgECdcdWE0g= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:date:to:cc:subject:message-id:mail-followup-to:references :mime-version:content-type:content-disposition:in-reply-to :user-agent:x-operating-system; b=bAxjBbEBqCXD/eqt/y+P+AsluYw0S9oJ5lwFWSeWev2C7y4fevaazM4RZyiZ2YKYYr 1rbVsldJdXd5l9YZgZBGvgjtRJKKXtIw+Ry0bcOwkPDsMHGXmvKgLLoloKooGO/5g1dw y4GlPXmB+9LMxKSpH+GLLHBB+Pa9iC4NZNsrU= Received: by 10.227.202.11 with SMTP id fc11mr743498wbb.131.1300429066862; Thu, 17 Mar 2011 23:17:46 -0700 (PDT) Received: from aperturelab ([194.176.96.249]) by mx.google.com with ESMTPS id ed10sm1134552wbb.66.2011.03.17.23.17.43 (version=SSLv3 cipher=OTHER); Thu, 17 Mar 2011 23:17:45 -0700 (PDT) Received: by aperturelab (sSMTP sendmail emulation); Fri, 18 Mar 2011 09:17:41 +0300 From: ameiji Date: Fri, 18 Mar 2011 09:17:41 +0300 To: Ilya Kazakevich Message-ID: <20110318061741.GA47713@aperturescience.org> Mail-Followup-To: Jeff Laine , Ilya Kazakevich , freebsd-questions@freebsd.org References: <00ca01cbe3da$e1ee5620$a5cb0260$@wakefield.sch.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Operating-System: FreeBSD 8.2-RELEASE i386 Cc: freebsd-questions@freebsd.org Subject: Re: Booting from firmware RAID X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Mar 2011 06:48:15 -0000 On Wed,16-03-2011 [16:25:54], Ilya Kazakevich wrote: > Thank you. > > I configured boot0 to my ar0 and tried to boot from it. It freezes. > I use RAID10 and Intel-ICH7. > > Looks like I've faced with some other troubles.. > > Ilya. > > On Wed, Mar 16, 2011 at 4:05 PM, mcoyles > wrote: > > > >This is probably more PC-specific than freebsd-specific question. I have > > >intel firmware raid. OS needs drivers to work with it. FreeBSD sees it as > > >ar0, so it has drivers. > > >But I want my OS to be installed on this drive and boot from it. It is not > > >good idea, but I really want to do it:) > > >Is it possible? > > > > > >boot0 and boot1 both work with HDD via BIOS interrupts and CHS, right? So, > > >how do they know how to access RAID? They has no drivers. > > >Or BIOS supports interrupts to access RAID with out of drivers? If so -- > > >what for drivers are needed? To access drive via ATA interface? > > > > Bios support interrupts and can thus boot from firmware raid. > > Under windows drivers typically just give you full speed / management > > features > > > > ----- > > Marci > > > > Hi, here what man atacontrol says: Although the ATA driver allows for creating an ATA RAID on disks with any controller, there are restrictions. It is only possible to boot on an array if it is either located on a real RAID controller like the Promise or Highpoint controllers, or if the RAID declared is of RAID1 or SPAN type; in case of a SPAN, the partition to boot must reside on the first disk in the SPAN. Not sure if it's your case though. -- A complex system that works is invariably found to have evolved from a simple system that works.