From owner-freebsd-ppc@FreeBSD.ORG Sun Jun 20 19:01:55 2010 Return-Path: Delivered-To: freebsd-ppc@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 387FD106566B for ; Sun, 20 Jun 2010 19:01:55 +0000 (UTC) (envelope-from nwhitehorn@freebsd.org) Received: from agogare.doit.wisc.edu (agogare.doit.wisc.edu [144.92.197.211]) by mx1.freebsd.org (Postfix) with ESMTP id 0AA608FC19 for ; Sun, 20 Jun 2010 19:01:54 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; CHARSET=US-ASCII; format=flowed Received: from avs-daemon.smtpauth2.wiscmail.wisc.edu by smtpauth2.wiscmail.wisc.edu (Sun Java(tm) System Messaging Server 7u2-7.05 32bit (built Jul 30 2009)) id <0L4B00500U76Z900@smtpauth2.wiscmail.wisc.edu> for freebsd-ppc@freebsd.org; Sun, 20 Jun 2010 14:01:54 -0500 (CDT) Received: from comporellon.tachypleus.net ([unknown] [76.210.72.212]) by smtpauth2.wiscmail.wisc.edu (Sun Java(tm) System Messaging Server 7u2-7.05 32bit (built Jul 30 2009)) with ESMTPSA id <0L4B00LQFU742W20@smtpauth2.wiscmail.wisc.edu>; Sun, 20 Jun 2010 14:01:53 -0500 (CDT) Date: Sun, 20 Jun 2010 14:01:52 -0500 From: Nathan Whitehorn In-reply-to: <1D327CFF-291D-4AC1-89F4-24A689303475@gromit.dlib.vt.edu> To: Paul Mather Message-id: <4C1E65A0.9030800@freebsd.org> X-Spam-Report: AuthenticatedSender=yes, SenderIP=76.210.72.212 X-Spam-PmxInfo: Server=avs-11, Version=5.5.9.395186, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2010.6.20.184514, SenderIP=76.210.72.212 References: <4C1A253C.7040905@freebsd.org> <1D327CFF-291D-4AC1-89F4-24A689303475@gromit.dlib.vt.edu> User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.10) Gecko/20100620 Thunderbird/3.0.5 Cc: freebsd-ppc@freebsd.org Subject: Re: 8.1-RC1 fails to boot on iBook G4 X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jun 2010 19:01:55 -0000 On 06/19/10 10:29, Paul Mather wrote: > On Jun 17, 2010, at 9:38 AM, Nathan Whitehorn wrote: > > >> On 06/16/10 21:13, Paul Mather wrote: >> >>> I just tried to book the 8.1-RC1 disc1 ISO on an iBook G4 but it failed to boot into FreeBSD. I was left at the Open Firmware prompt. Is FreeBSD known not to work on an iBook G4? I was able to boot successfully into the FreeBSD installer using this same disc on a PowerBook G4. >>> >>> >> That should work perfectly fine. I have a G4 iBook of the same model running FreeBSD. >> >> >>> Decrementer exception at %SRR0: 00100100 %SRR1: 10003030 >>> >>> >> This is a very rare race during early initialization that happens on some machines and that no one has been able to track down. A timer seems to have gone off in the middle of the OF->kernel transition. It's possible that if you wait a different amount of time at the boot prompt it won't happen. >> > I tried waiting a different amount of time during a couple of boot attempts, but it made no difference. Some of the times I waited until different points during the countdown to boot before pressing the return key, and at least once I pressed space to go to the boot prompt and let it sit there for a while before issuing "boot." Every time, it failed to boot FreeBSD. > > Almost always, I get the "Decrementer exception" error above, but once I got something akin to a "Memory access error" reported, with the same %SRR0 and %SRR1 values. I even reset the iBook's PRAM via Command-Option-P-R, but to no avail. > That's very strange -- 0x00100100 is the very first instruction in the kernel, so it hasn't even had a chance to run yet. Maybe there is a hardware problem with your CD drive? Can you check that the MD5 of the disc matches the one on the FTP site when read from your iBook? -Nathan