Date: Sun, 18 Nov 2007 20:01:59 +0100 From: Dmitry Karasik <dmitry@karasik.eu.org> To: freebsd-stable@freebsd.org Subject: No kernel messages displayed during boot Message-ID: <20071118190159.GA12962@tetsuo.karasik.eu.org>
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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? -- Sincerely, Dmitry Karasik
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