From owner-freebsd-hackers@FreeBSD.ORG Sat Dec 27 18:53:39 2014 Return-Path: Delivered-To: freebsd-hackers@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 966A4FF4 for ; Sat, 27 Dec 2014 18:53:39 +0000 (UTC) Received: from mail-qg0-x234.google.com (mail-qg0-x234.google.com [IPv6:2607:f8b0:400d:c04::234]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4B71A66F50 for ; Sat, 27 Dec 2014 18:53:39 +0000 (UTC) Received: by mail-qg0-f52.google.com with SMTP id a108so7924956qge.25 for ; Sat, 27 Dec 2014 10:53:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=gOw3I7wCttMgzWCuxjzQ//PcmoWermqBT4urdabSotM=; b=TAuEtINSYhdbm3a5M0Lx11NPcq8k99AJcBv6wtYbqByP1v9OXQV6fEGCDqUvsyycwH AsKKpBemzJEHYT88y9VSpY327x6tpt8v0f/QIJnQAHo0fYRbD1PE5sAlhSQhKGf/69Mw 0pOks8igKk5jTOcdp5EBaqPI8pAnRf4KopANg06vlTF7tEbAFs0otwU2GKwR2989bjJ0 odtl6TrWe6abm2Iw1kdQ8aJkAnuyd7fAY9p/mR0J7+lGKVQ18yhix/DOGURLpISDGGem 9buKMxW9/aoRXnz1CnNQJItiYQ3htGrnzkcgxcfhXlXQJwTnKhMHd+ShXukpv0v2Ex8x PaMA== X-Received: by 10.224.63.198 with SMTP id c6mr36816457qai.41.1419706418487; Sat, 27 Dec 2014 10:53:38 -0800 (PST) Received: from [192.168.1.1] (adsl-98-66-33-141.mem.bellsouth.net. [98.66.33.141]) by mx.google.com with ESMTPSA id t67sm29146125qgt.11.2014.12.27.10.53.37 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 27 Dec 2014 10:53:38 -0800 (PST) Message-ID: <549F0030.8030206@gmail.com> Date: Sat, 27 Dec 2014 12:53:36 -0600 From: Garry Roseman User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: freebsd-hackers@freebsd.org Subject: Re: Dual-boot with common ZFS References: <4A40BFDA-ABE9-4AB5-947F-C11343B9630B@metricspace.net> <549EF25D.8010303@freebsd.org> In-Reply-To: <549EF25D.8010303@freebsd.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 27 Dec 2014 18:53:39 -0000 On 12/27/2014 11:54 AM, Allan Jude wrote: > Your biggest issue with doing this with an existing ZFS install, is > that you may have used ZFS features that are too new for Linux to > support them. You might have to start over with a pool created with > some of the feature flags turned off (or create the pool under Linux, > and don't upgrade it on FreeBSD). I dual boot Gentoo (drive 0) and FreeBSD (drive 1) and share a zfs pool (mirror drives 2 and 3) between them. It was indeed necessary to create the pool under Gentoo and not allow FreeBSD to upgrade it. Luckily I have an "old" Sandybridge cpu and FreeBSD Intel graphics is now very good for me.