Re: No kernel messages displayed during boot

Hi,

I had the exact same problem after I upgraded to 7.0-BETA2, and the problem
seemed to be that I forgot to `make delete-old' and `make delete-old-libs'.

For details, see thread 'No boot messages after upgrading to 7.0-BETA2'.

--
AngryWolf
angrywolf@xxxxxxxxxxxxx

On Sunday 18 November 2007 20.01.59 Dmitry Karasik wrote:
Hello,

My 6.2-STABLE crashed today, and when I rebooted it, a very strange effect
appeared: from the second the kernel took over, immediately after loading
all .ko files, no text was printed in the console. The system booted
though, and the next text was printed to the console was the login prompt.
The screen didn't went blank, just all kernel messages and output of
/etc/rc* wasn't there -- all was printed on the screen was FreeBSD boot
menu, and login prompt.

I've re-run 'make installworld' and 'make installkernel' (as I had
leftovers from recent buildworld), - didn't help. I've tried to power down
the machine (suspecied video card trouble), I've resetted BIOS, I've even
disabled com port in BIOS (because the behavior looks like booting on
serial console) -- nothing, absolutely nothing changes it.

When I tried to boot in single-user mode, the prompt was never displayed at
all, which fact indeed makes me think alogn the path of the wrong boot
console. I've removed /boot/loader.conf, and double-checked that
/boot.config isn't present - didn't help.

My question is therefore, what cause of this effect might be? Or, if noone
would be able to answer this, how I would print messages from kernel (I'd
recompile it for that purpose) to identify which device it picked up for
console IO -- and especially, how I print that either to a file, or
directly to /dev/console?
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