From owner-freebsd-stable@FreeBSD.ORG Mon Dec 26 00:39:47 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 055D216A41F for ; Mon, 26 Dec 2005 00:39:47 +0000 (GMT) (envelope-from dsyphers@u.washington.edu) Received: from mxout2.cac.washington.edu (mxout2.cac.washington.edu [140.142.33.4]) by mx1.FreeBSD.org (Postfix) with ESMTP id DDC9B43D68 for ; Mon, 26 Dec 2005 00:39:41 +0000 (GMT) (envelope-from dsyphers@u.washington.edu) Received: from smtp.washington.edu (smtp.washington.edu [140.142.32.139]) by mxout2.cac.washington.edu (8.13.5+UW05.10/8.13.5+UW05.09) with ESMTP id jBQ0dfph002539 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sun, 25 Dec 2005 16:39:41 -0800 X-Auth-Received: from yggdrasil.seektruth.org (c-67-171-38-33.hsd1.wa.comcast.net [67.171.38.33]) (authenticated authid=dsyphers) by smtp.washington.edu (8.13.5+UW05.10/8.13.5+UW05.09) with ESMTP id jBQ0deJg000327 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NOT) for ; Sun, 25 Dec 2005 16:39:41 -0800 From: David Syphers To: freebsd-stable@freebsd.org Date: Sun, 25 Dec 2005 16:40:26 -0800 User-Agent: KMail/1.8.2 References: <200512251237.55091.dsyphers@u.washington.edu> In-Reply-To: <200512251237.55091.dsyphers@u.washington.edu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-6" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200512251640.26771.dsyphers@u.washington.edu> X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='LOCALE_ARABIC 0, __CD 0, __CHAR_ARABIC_CT 0, __CT 0, __CTE 0, __CTYPE_CHARSET_QUOTED 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0, __USER_AGENT 0' Subject: "solved": Re: can't mount root after upgrade to RELENG_6 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Dec 2005 00:39:47 -0000 On Sunday 25 December 2005 12:37 pm, David Syphers wrote: > I'm trying to upgrade a July 27 RELENG_5 box to today's RELENG_6. I got > through buildworld and make kernel, but upon rebooting I get dropped into a > mountroot prompt. Choosing '?' there only shows fd0. It's trying to mount > root from /dev/ad0s1a, which is correct. Booting in safe mode mounts root > fine and gives me a fully usable system Apparently booting in safe mode disables apic. I was looking for differences between my old 5.x kernel and the new one, and realized I left 'device apic' in my new kernel. Rebuilding without it makes everything work fine. I just assumed apic would be safe because, well, it's in GENERIC... Turns out it's deadly to my system. Thanks to the couple folks who tried to help with this, even on a holiday. -David -- "What's the good of having mastery over cosmic balance and knowing the secrets of fate if you can't blow something up?" -Terry Pratchett