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Date: Sun, 04 Apr 2010 19:05:53 +0300
From: Andriy Gapon <avg@icyb.net.ua>
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To: Phil Regnauld <pr+freebsd-current@x0.dk>
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Cc: Attilio Rao <attilio@freebsd.org>, freebsd-current@freebsd.org
Subject: Re: FreeBSD 9-CURRENT (and 8.0) on MacMini (rev. 3,1)
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on 04/04/2010 18:34 Phil Regnauld said the following:
> Attilio Rao (attilio) writes:
>> I would start by compiling a debugging kernel and using serial port
>> for capturing, starting reporting the ACPI bug in the latest case,
>> then we can get useful informations.
> 
> 	Hi Attilio,
> 
> 	Any pointers on how to achieve that on a machine with no serial ports ?
> 	I've checked out:
> 	http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-online-gdb.html
> 	and
> 	http://wiki.freebsd.org/DebugWithDcons (there is a recognized firewire port)
> 
> 	I don't otherwise see how to get a core to disk halfway through the boot
> 	process.

You could try to use firewire console.
See dcons(4).

Also, a good and quicker start is to report actual panics that you get, as
Attilio has suggested.
When everything else fails, a digital camera still can be used to get screen
captures:-)


-- 
Andriy Gapon