Date: Sat, 19 Jun 2010 11:29:38 -0400 From: Paul Mather <paul@gromit.dlib.vt.edu> To: freebsd-ppc@freebsd.org Subject: Re: 8.1-RC1 fails to boot on iBook G4 Message-ID: <1D327CFF-291D-4AC1-89F4-24A689303475@gromit.dlib.vt.edu> In-Reply-To: <4C1A253C.7040905@freebsd.org> References: <ACC43406-4175-40E5-A974-A72A54EF55E8@gromit.dlib.vt.edu> <4C1A253C.7040905@freebsd.org>
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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. Cheers, Paul.home | help
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