Serial console

Daniel Bye freebsd-questions at
Tue Mar 15 03:37:05 PST 2005

Hi all,

Please forgive the FAQ - this is really baffling me now.  I am trying
to get the serial console running on a new server.  The BIOS is set up
the same as the other machines where the console works fine, BAUD rate,
flow control etc all as expected.  The BIOS includes a setting to
control console redirect - it's currently set to "Boot loader", the
other two options being disable or "Always" - we tried this latter
yesterday, but to no effect.

/boot/loader.rc contains this:

include /boot/loader.4th
boot-conf -Dh

/boot/loader.conf is empty.  I have altered /etc/ttys to show this:

ttyd0   "/usr/libexec/getty std.9600"   vt100   on secure

sio0's entry in /boot/device.hints looks like this:"isa"

We tried 0x30 in flags as well, but to avail.

It is running 5.3-RELEASE-p5, using GENERIC.

The machine boots - you see the BIOS POST, the SATA controller comes up,
then you see FreeBSD's boot messages on the console.  As soon as the
kernel launches, we get the login: prompt and then nothing.  So, we know
the hardware works; the problem is something I am doing with the kernel
config.  As I said, this setup is the same as a machine running the same
hardware, that is known to be working.

I have read the appropriate bits in the Handbook and the FAQ, as well as
a couple of other sites, and have set up serial consoles on numerous
occasions in the past.  I'm just having a major brain fart this morning.
Can anyone see what I'm doing wrong?



Daniel Bye

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