dmesg not working on new system

[Lowell Gilbert]

Greg Barniskis <nalists at 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?