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To: Greg Barniskis <nalists@scls.lib.wi.us>
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From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: Mon, 05 Jun 2006 14:34:27 -0400
In-Reply-To: <44847336.9050908@scls.lib.wi.us> (Greg Barniskis's message of
	"Mon, 05 Jun 2006 13:08:54 -0500")
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Cc: Chris Maness <chris@chrismaness.com>, freebsd-questions@freebsd.org
Subject: Re: dmesg not working on new system
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Greg Barniskis <nalists@scls.lib.wi.us> writes:

> Chris Maness wrote:
>>
>>
>> On Mon, 5 Jun 2006, Greg Barniskis wrote:
>>
>>> Chris Maness wrote:
>>>> I just installed 6.1 and upgraded to RELEASE-p1.  The command
>>>> dmesg is not displaying any kernel messages, any suggestions? 
>>>
>>> Suggests all is well?
>>>
>>> dmesg outputs stuff from the current system message buffer, which
>>> contains your boot messages right after booting but those can get
>>> flushed over time. Boot messages are saved to a file though, for
>>> reference.
>>>
>>> more /var/run/dmesg.boot
>>>
>
>>
>> I just thought it was strange because every other system I have it
>> at least displays dmesg.boot if there is no other messages.  Is this
>> new behavior for 6.1?
>
> Not new behavior. A dmesg on any of my running systems (4.x, 5.x)
> returns nothing after a time. You were just catching it before the
> buffer was flushed. I don't know what triggers that, and it is
> possible that the trigger/timing of it may have changed in 6.x (and as
> always, YMMV).

Interesting.  Does "dmesg -a" show anything different?