From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1S1YNn-0000K9-1b for garchives@archives.gentoo.org; Sun, 26 Feb 2012 07:18:59 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 47234E0997; Sun, 26 Feb 2012 07:18:48 +0000 (UTC) Received: from mail-ee0-f53.google.com (mail-ee0-f53.google.com [74.125.83.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 4B5AEE096B for ; Sun, 26 Feb 2012 07:16:59 +0000 (UTC) Received: by eekb47 with SMTP id b47so794440eek.40 for ; Sat, 25 Feb 2012 23:16:58 -0800 (PST) Received-SPF: pass (google.com: domain of emailgrant@gmail.com designates 10.14.200.196 as permitted sender) client-ip=10.14.200.196; Authentication-Results: mr.google.com; spf=pass (google.com: domain of emailgrant@gmail.com designates 10.14.200.196 as permitted sender) smtp.mail=emailgrant@gmail.com; dkim=pass header.i=emailgrant@gmail.com Received: from mr.google.com ([10.14.200.196]) by 10.14.200.196 with SMTP id z44mr5143726een.116.1330240618591 (num_hops = 1); Sat, 25 Feb 2012 23:16:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=EsBT53lNaqhhdaIR/yk4KNqF8UrwQf99lP6OYSZf9sg=; b=EloHbh5AwigzFteMidW+ddDIVDywp3ibO9z599zEvCbnLpKuyUmoRvU6FR4vRPhhPq xB1oY0Jd3ySwqGJGcYm05MNUFWUKbRVooLGZaM5l3Y0/RdHcTkP6CIn4p1rbkPCeSHes pXjqbCkPadGVK7HVS9ej6IVaR/FWCwcWxt/pA= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.14.200.196 with SMTP id z44mr3871314een.116.1330240618405; Sat, 25 Feb 2012 23:16:58 -0800 (PST) Received: by 10.213.113.148 with HTTP; Sat, 25 Feb 2012 23:16:58 -0800 (PST) In-Reply-To: References: Date: Sat, 25 Feb 2012 23:16:58 -0800 Message-ID: Subject: Re: [gentoo-user] Re: Safe way to test a new kernel? From: Grant To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 67e36322-367a-42a7-a9bd-7812c0bff826 X-Archives-Hash: d1e16334dbac09acf46beb57960a71dc >>> I need to test a kernel config change on a remote system. =A0Is there a >>> safe way to do this? =A0The fallback thing in grub has never worked for >>> me. =A0When does that ever work? >> >> >> Oh crap, you said "remote system". =A0Somehow I missed that. =A0Ignore m= y >> previous post since obviously accessing Grub on a remote machine would >> require a hardware VNC module (if you had that, then you wouldn't have >> posted about the issue in the first place, I assume.) >> >> The way I dealt with it, is to use the "boot once" functionality of Grub= : >> >> http://weichong78.blogspot.com/2007/04/grub-test-kernel-once.html > > Perfect! =A0That's exactly what I need. =A0Here is an alternate method to= o: > > http://fabbritech.blogspot.com/2009/07/make-grub-boot-something-once.html > > I will test this ASAP. > > - Grant I get "Unrecognized command" from savedefault in grub: grub> savedefault --default=3D1 --once Error 27: Unrecognized command I re-emerged grub with /boot mounted and ran grub-install but I get the same error. Does anyone know how to fix this? I'm on grub-0.97-r10. - Grant