From owner-freebsd-fs@FreeBSD.ORG Thu May 26 16:25:25 2011 Return-Path: Delivered-To: freebsd-fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 04EBD1065674 for ; Thu, 26 May 2011 16:25:25 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 503578FC36 for ; Thu, 26 May 2011 16:25:23 +0000 (UTC) Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua [212.40.38.101]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id TAA23214; Thu, 26 May 2011 19:25:17 +0300 (EEST) (envelope-from avg@FreeBSD.org) Message-ID: <4DDE7EEC.5000708@FreeBSD.org> Date: Thu, 26 May 2011 19:25:16 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.17) Gecko/20110504 Lightning/1.0b2 Thunderbird/3.1.10 MIME-Version: 1.0 To: Nick Sayer References: <201105261440.p4QEe9Rd011893@freefall.freebsd.org> <4DDE6FAE.9070601@FreeBSD.org> In-Reply-To: X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: "freebsd-fs@FreeBSD.org" Subject: Re: kern/153804: boot from zfs kernel.old recovery undocumented/impossible X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 May 2011 16:25:25 -0000 on 26/05/2011 19:14 Nick Sayer said the following: > 1. Man pages are not helpful when the system will not boot. Yeah, if you have only a single system. Non-hardcopy Handbook/Wiki/etc won't help you either. > 2. The page in question does not mention the correct type argument for the > zpool.cache (nor that the type is not material). Not that it necessarily > should, but in either case, loader(8) is not sufficient. Why should it? > 3. Perhaps it would be particularly helpful to print some kind of message as to > WHY the system failed to mount root - that the zpool.cache file wasn't loaded. > That message would be good google fodder to help folks with unbootable systems > get back up and running. That's a good idea. > All I know is that I have been without an answer as to how to recover between > January and a few days ago. That suggests to me the existence of a > documentation gap. Perhaps. It also shows that you have not been researching and/or asking actively enough. If you provide reasonable patches to FreeBSD documentation they will be welcome. You can also blog/etc about your experience, so that other people could pick your knowledge via search engines. > On May 26, 2011, at 8:20 AM, Andriy Gapon wrote: > >> on 26/05/2011 17:40 Nick Sayer said the following: >>> The following reply was made to PR kern/153804; it has been noted by >>> GNATS. >>> >>> From: Nick Sayer To: bug-followup@FreeBSD.org Cc: Subject: >>> Re: kern/153804: boot from zfs kernel.old recovery undocumented/impossible >>> Date: Thu, 26 May 2011 07:31:13 -0700 >>> >>> Before this gets closed, is someone going to maybe add this to some = >>> documentation somewhere? This ought to go in the handbook at the very = >>> least. >> >> Which part exactly? IMO, loader(8) should be sufficient. >> >> >> -- Andriy Gapon -- Andriy Gapon