From owner-freebsd-stable@FreeBSD.ORG Sun Apr 17 19:28:23 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B83851065676 for ; Sun, 17 Apr 2011 19:28:23 +0000 (UTC) (envelope-from romain.garbage@gmail.com) Received: from mail-qw0-f54.google.com (mail-qw0-f54.google.com [209.85.216.54]) by mx1.freebsd.org (Postfix) with ESMTP id 73F2F8FC13 for ; Sun, 17 Apr 2011 19:28:23 +0000 (UTC) Received: by qwc9 with SMTP id 9so2560205qwc.13 for ; Sun, 17 Apr 2011 12:28:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=xsByZ8ShKNifHMMG88XQuIoZLhO/tSg4cpuMCKcJ3wY=; b=hgALG12Xu/MoDWkLyLKhtF2oExTYlCBaQYYdyH/4Duxy0sY3/kdX6nB0LiFMsWlYEC VEB4eLtcGyI9LXveWNDDNFd7C0+ACCd5/sZfBsznidW6+FvM35lcs1orxIqMIzCtrMPP VZgB73ksC2kb3KFHddRrARTLWqHuXS0gbI4qw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=n8jWmh5YaqKVf9Kz3NovEq5MxD4bTMISKGIvra0Z6pZOjIcRIB38QGEDWUgNjpD/Jb 0sjMjY4HvbUYG1xruCzT/f7geWzzfpSwiiLjyxY8VinJb0WImbEuskZnS1ws/rFzMVif D93EnoztHBsBwYPy6XnqEYlRybfDxqsJQR/+g= MIME-Version: 1.0 Received: by 10.229.130.144 with SMTP id t16mr2972530qcs.146.1303067189220; Sun, 17 Apr 2011 12:06:29 -0700 (PDT) Received: by 10.229.110.17 with HTTP; Sun, 17 Apr 2011 12:06:29 -0700 (PDT) In-Reply-To: <20110417185402.GA55984@icarus.home.lan> References: <20110417123232.GA96423@laa.zp.ua> <20110417142135.GA51568@icarus.home.lan> <20110417163135.GC96423@laa.zp.ua> <20110417183014.GA55444@icarus.home.lan> <20110417184538.GG96423@laa.zp.ua> <20110417185402.GA55984@icarus.home.lan> Date: Sun, 17 Apr 2011 21:06:29 +0200 Message-ID: From: Romain Garbage To: Jeremy Chadwick Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-stable@freebsd.org, Lystopad Olexandr Subject: Re: ZFS root on MB Intel S3420GP X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Apr 2011 19:28:23 -0000 2011/4/17 Jeremy Chadwick : > On Sun, Apr 17, 2011 at 10:45:38PM +0400, Lystopad Olexandr wrote: >> >> What about ahci_load=3D"YES" after freebsd install? Is it too late? > > I don't recommend enabling ahci.ko after the OS has already been > installed on an adX disk, simply because I believe the combination of > GEOM+CAM+ahci may show different geometry details than GEOM+ata would. > > Note: I said "I believe", not "I can confirm/validate". =C2=A0I could be > completely wrong. =C2=A0Rather than find out ( :-) ) I tend to try and do > things consistently from the very beginning. > > So you can try it if you want, be my guest, report back. I did it on a 8.1-RELEASE install: I installed the system as explained in the wiki (http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot) and after some months of use, I added ahci_load=3D"YES" to /boot/loader.conf. Device names changed from ad{4,8} to ada{0,1} and everything still worked fine, which kind of surprised me because I didn't do any labelling to my disks (I remember having done that earlier in 8.0 times, and zfs pool reported devices were unavailable, as was the pool, at that time). Regards, Romain