problem in changing serial console speed!

[CyberLeo Kitsana]

On 11/27/2011 12:07 AM, h bagade wrote:
> Hi all,
> 
> I want to change serial console speed on freebsd 8.2. I've found out
> different way of doing so but none was successful! I've tried the following
> ways:
> 
> 1- change /boot.config: add -S*speed
> 
> *2- change /boot/loader.conf: add following lines
> boot_multicons="YES"
> boot_serial="YES"
> comconsole_speed="115200"
> console="comconsole,vidconsole"
> 
> 3- change /etc/ttys as follows:
> ttyu0    "/usr/libexec/getty std.115200"    vt100    on secure
> 
> none of the above methods worked and only changing /etc/makefile had an
> effect on serial console speed which is not appropriate.
> Is there anything else should be take in to consideration in any of the
> ways? What am I missing?

You have to do all of them.

With my Intel SS4200 NAS boxen (which are headless), I do the following:

----8<----
Set the serial port to 115200 in the bios and disable console
redirection after boot.

Add to /boot.config to set boot block serial speed:
-h -S115200

Add to loader.conf to set /loader serial speed:
console="comconsole"
conconsole_speed="115200"

Edit /etc/ttys to set serial login speed:
ttyu0 "/usr/libexec/getty std.115200" vt100 on secure
----8<----

This is sufficient to completely replace the emulated VGA with native
serial output across all phases of the boot sequence, from the boot
block through /loader, kernel and startup messages, all the way to login.

Some changes may be necessary if you intend to use a serial port other
than 0, or if you wish to have both serial and VGA consoles available.

-- 
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-CyberLeo
Technical Administrator
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<CyberLeo at CyberLeo.Net>

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