From owner-freebsd-questions@freebsd.org Thu Apr 27 15:22:44 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id F087FD531C4 for ; Thu, 27 Apr 2017 15:22:44 +0000 (UTC) (envelope-from dch@skunkwerks.at) Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) (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 C458B9E2 for ; Thu, 27 Apr 2017 15:22:43 +0000 (UTC) (envelope-from dch@skunkwerks.at) Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id 0BB8620991 for ; Thu, 27 Apr 2017 11:22:43 -0400 (EDT) Received: from web6 ([10.202.2.216]) by compute7.internal (MEProxy); Thu, 27 Apr 2017 11:22:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=skunkwerks.at; h=content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc; s=mesmtp; bh=uP6H1I+0OWXkYXoGYCnLk0GEVx 5f5eb1sasP8qZEpag=; b=LbG83zYecU2y5lzEy3lxLyBHVW+OFuH6hmXxP1LXRp c8ckgGX9O9ebK2wBhmRwQU0GivI18WyZ0jqsc0mx2lcsbQxAEycaaNBhod3yOegY A5SKKM4NIpvIwzk1j7D7ASwQeamAu3jfYQkacYjYqYW5R4PvuIF4ac5Z5dIsemt5 Y= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=uP6H1I +0OWXkYXoGYCnLk0GEVx5f5eb1sasP8qZEpag=; b=cjGPiRc/pFxZhxap6ez23y m33nMfAvuC0stdhXpZgDOk2NksxbyiZbSavrymb2K4Rlda1jH8JsRpFtwkOyFICh rWiblrl5dzHqxlEVBRB6/5ggdm+WfX9Fw7KaQJaD9bJRhEtjMVRxuJRswfOI73Mt CAk1kquD0emKWTTRZFq8RODCN4io2uORyO0ytK7QZv9zhpSymgncxU5EcGAP8gBG JSl0fW+o3oBpC5r2DU1Tpq1Y+yk7ngszuBWacjhjQTjg4nZdL2/EWyzwRjsyEMGi y9GmY4A70A75VRWgi9IHLb4Te24D4rkcpP/ArGiHBkt/OMm2sH9YGJxphK5JvqZw == X-ME-Sender: Received: by mailuser.nyi.internal (Postfix, from userid 99) id E0C5048004; Thu, 27 Apr 2017 11:22:42 -0400 (EDT) Message-Id: <1493306562.346687.958279176.43C64097@webmail.messagingengine.com> From: Dave Cottlehuber To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" X-Mailer: MessagingEngine.com Webmail Interface - ajax-88a795dc References: <8c6322c0-b425-84e8-87c8-ed4cff727955@netfence.it> In-Reply-To: <8c6322c0-b425-84e8-87c8-ed4cff727955@netfence.it> Date: Thu, 27 Apr 2017 17:22:42 +0200 Subject: Re: Some ZFS questions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Apr 2017 15:22:45 -0000 On Thu, 27 Apr 2017, at 16:19, Andrea Venturoli wrote: > On 04/18/17 11:21, Frederic Chardon wrote: > > > What puzzles me is "zroot/ROOT": why do we need that? Why do we > > mount "zroot/ROOT/default" as root instead of simply mounting > > "zroot" at /? > > > > > > It's a setup for Boot Environment (just google that ;)). If you install > > sysutils/beadm you can then have in parallel several root fs. It's not > > mandatory but so useful that's is enabled by default. > > Thanks. > Now I understand what this is and why it is useful. > > Still, I think I need a SHTF-plan before I put such a system in > production. > Is there any step-by-step instruction on how to mount the box's HD from > a live filesystem? > > bye & Thanks > av. http://www.callfortesting.org/bhyve-boot-environments/ is excellent, as is http://www.infracaninophile.co.uk/articles/zfs-update-management/ closer to a step-by-step I don't think you'll find anywhere. A+ Dave