From owner-freebsd-questions@FreeBSD.ORG Wed Apr 22 20:36:12 2015 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id F1C21ECD for ; Wed, 22 Apr 2015 20:36:12 +0000 (UTC) Received: from mail.kulturflatrate.net (mail.kulturflatrate.net [46.163.119.221]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 868361217 for ; Wed, 22 Apr 2015 20:36:12 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.kulturflatrate.net (Postfix) with ESMTP id B29D4F5AC0AC; Wed, 22 Apr 2015 22:36:09 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at kulturflatrate.net X-Spam-Flag: NO X-Spam-Score: -2.9 X-Spam-Level: X-Spam-Status: No, score=-2.9 required=6.31 tests=[ALL_TRUSTED=-1, BAYES_00=-1.9] autolearn=ham Received: from mail.kulturflatrate.net ([127.0.0.1]) by localhost (mail.kulturflatrate.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aipKryuVXO_E; Wed, 22 Apr 2015 22:36:08 +0200 (CEST) Received: from len-x61s.klaas (160.210.broadband18.iol.cz [109.81.210.160]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kulturflatrate.net (Postfix) with ESMTPSA id 83113F5AC0AA; Wed, 22 Apr 2015 22:36:08 +0200 (CEST) Received: by len-x61s.klaas (Postfix, from userid 1000) id 8B0A1E0573; Wed, 22 Apr 2015 22:38:47 +0200 (CEST) Date: Wed, 22 Apr 2015 22:38:47 +0200 From: Niklaas Baudet von Gersdorff To: Bigby James Cc: freebsd-questions@freebsd.org Subject: Re: Lenovo T420 installlation with zfsroot and GPT/UEFI (FreeBSD 10.1) Message-ID: <20150422203847.GJ2378@len-x61s.klaas> References: <20150422070144.GS2378@len-x61s.klaas> <20150422131047.GA1955@WorkBox.Home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150422131047.GA1955@WorkBox.Home> X-PGP-Key: http://www.kulturflatrate.net/niklaas/niklaas-baudet-von-gersdorff.asc User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Apr 2015 20:36:13 -0000 Bigby James [2015-04-22 08:10 -0500] : > First off, as of 10.1-RELEASE FreeBSD cannot boot from a ZFS root > partition via UEFI. It's simply not possible right now. I assume this is what the warning message is about, isn't it? > Second, my T520 will only boot FreeBSD from a GPT disk via UEFI, and > the T420 likely has the same firmware. So you can format an MBR disk > with ZFS and boot via legacy mode, but ZFS can't boot from GPT with > UEFI. Which would be realised by setting "Partition Scheme" from "GPT" to "MBR" in the installation guide for a ZFS setup, wouldn't it? If I do so and change the boot mode to "legacy" I only get a blank screen with the cursor blinking in the top left. What I did then was dd-ing the non-uefi memstick on a flash disk, ensuring that "legacy" is the active boot mode, and booting from the flash disk. I went through the installation, choosing the guided ZFS install again. There I set "MBR" as partition type (to make sure that everything is "old-style") and performed the installation. After that I rebooted and what happens now is that the system tries to boot, shows a blank screen, tries to boot again, shows a blank screen again, and so on. > Or you can do what I did, and create a 1.5G partition for the root > ('/') filesystem, format it to UFS, and leave the rest of the disk for > ZFS. Thanks for pointing out that option. I'd like to keep the partition scheme as simple as possible -- if it can be simple. Thanks for your help, -- Niklaas