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 4.77) (envelope-from ) id 1Smwaf-00060i-IZ for garchives@archives.gentoo.org; Fri, 06 Jul 2012 00:40:09 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 49085E0521; Fri, 6 Jul 2012 00:39:55 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 80818E0747 for ; Fri, 6 Jul 2012 00:38:24 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id 12E111B4015 for ; Fri, 6 Jul 2012 00:38:24 +0000 (UTC) X-Virus-Scanned: by amavisd-new using ClamAV at gentoo.org X-Spam-Flag: NO X-Spam-Score: -2.092 X-Spam-Level: X-Spam-Status: No, score=-2.092 tagged_above=-999 required=5.5 tests=[AWL=-1.083, BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FREEMAIL_FROM=0.001, FSL_RCVD_USER=0.001, NML_ADSP_CUSTOM_MED=0.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=no Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id n1Q5YtvbRGxM for ; Fri, 6 Jul 2012 00:38:18 +0000 (UTC) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTPS id 4FF721B400D for ; Fri, 6 Jul 2012 00:38:17 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1SmwYk-0001lO-6H for gentoo-user@gentoo.org; Fri, 06 Jul 2012 02:38:10 +0200 Received: from adsl-69-234-198-108.dsl.irvnca.pacbell.net ([69.234.198.108]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 06 Jul 2012 02:38:10 +0200 Received: from w41ter by adsl-69-234-198-108.dsl.irvnca.pacbell.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 06 Jul 2012 02:38:10 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: walt Subject: [gentoo-user] Re: GRUB2 migration Date: Thu, 05 Jul 2012 17:37:56 -0700 Message-ID: References: <4FF60A04.3000506@gentoo.org> <4FF6212F.4010103@gmail.com> 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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: adsl-69-234-198-108.dsl.irvnca.pacbell.net User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 In-Reply-To: <4FF6212F.4010103@gmail.com> X-Archives-Salt: 47295255-4b83-4ca0-8465-32abeb733bcd X-Archives-Hash: c41fa0b90e3db69f7bb9390499c5fe7b On 07/05/2012 04:20 PM, Dale wrote: > > I'm waiting on new/more docs myself. I want to know not only how to > upgrade but how to fix if it pukes on my keyboard. Hopefully other than > chroot'in in and all. There are basically only two ways that grub2 or grub1 can fail: First, you reboot and you don't even see a grub prompt because the grub part of your boot sector is broken in some way. I think the only practical way is to reinstall grub to the boot sector of your boot disk, which probably involves booting from another medium like a rescue CD, etc. Second, you reboot and see a valid grub shell prompt but your list of boot selections is missing for some reason. In that case I've been able to bail out very simply by typing various grub shell commands until I re-discover the right disk in case the BIOS disk numbering has changed for some reason. You do have to know the grub shell commands pretty well to get away with that, though. The way to learn them is to hit 'c' at the grub menu to drop into the grub shell mode and keep hitting 'tab' to see a list of available commands wherever you happen to be at the time. Just like legacy grub.