Date: Thu, 26 May 2011 09:30:15 -0700 From: Nick Sayer <nsayer@kfu.com> To: Andriy Gapon <avg@FreeBSD.org> Cc: "freebsd-fs@FreeBSD.org" <freebsd-fs@FreeBSD.org> Subject: Re: kern/153804: boot from zfs kernel.old recovery undocumented/impossible Message-ID: <6CEE2015-A88C-4C2E-9CE0-3FF154A7E5A5@kfu.com> In-Reply-To: <4DDE7EEC.5000708@FreeBSD.org> References: <201105261440.p4QEe9Rd011893@freefall.freebsd.org> <4DDE6FAE.9070601@FreeBSD.org> <C04E9E54-BEB9-4EE4-A32A-68E1530B3F04@kfu.com> <4DDE7EEC.5000708@FreeBSD.org>
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On May 26, 2011, at 9:25 AM, Andriy Gapon wrote: > on 26/05/2011 19:14 Nick Sayer said the following: >> 1. Man pages are not helpful when the system will not boot. >=20 > Yeah, if you have only a single system. Non-hardcopy = Handbook/Wiki/etc won't help > you either. >=20 >> 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. >=20 > Why should it? Did you not read the last sentence there, sparky? >=20 >> 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. >=20 > That's a good idea. >=20 >> 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. >=20 > Perhaps. It also shows that you have not been researching and/or = asking actively > enough. I love it. I couldn't find the answer, so it's clearly my fault. > If you provide reasonable patches to FreeBSD documentation they will = be > welcome. I can't document it if I DON'T KNOW WHAT THE FRIGGING ANSWER IS! > You can also blog/etc about your experience, so that other people = could > pick your knowledge via search engines. In fact, I gave a talk at BSDCan about my experience. You'll see a = reference to this PR on the BSDCan site. >=20 >> On May 26, 2011, at 8:20 AM, Andriy Gapon <avg@FreeBSD.org> wrote: >>=20 >>> 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. >>>>=20 >>>> From: Nick Sayer <nsayer@kfu.com> To: bug-followup@FreeBSD.org Cc: = Subject: >>>> Re: kern/153804: boot from zfs kernel.old recovery = undocumented/impossible=20 >>>> Date: Thu, 26 May 2011 07:31:13 -0700 >>>>=20 >>>> Before this gets closed, is someone going to maybe add this to some = =3D=20 >>>> documentation somewhere? This ought to go in the handbook at the = very =3D=20 >>>> least. >>>=20 >>> Which part exactly? IMO, loader(8) should be sufficient. >>>=20 >>>=20 >>> -- Andriy Gapon >=20 >=20 > --=20 > Andriy Gapon
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