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From: Vivek Khera <vivek@khera.org>
Date: Mon, 27 Feb 2006 13:39:49 -0500
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Subject: Re: RELENG_6: serial console drops back from 115200 to 9600 baud
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On Feb 27, 2006, at 1:19 PM, Ed Maste wrote:

> On Mon, Feb 27, 2006 at 11:07:35AM -0500, Vivek Khera wrote:
>
>> I get a 9600 baud console with the following after upgrade from 5.4:
>
> This is what I'm planning on putting in UPDATING:
>
>         The i386 loader(8) now defaults to the serial speed set by the
>         previous boot stage, if the comconsole is already in use.  If
>         you've changed BOOT_COMCONSOLE_SPEED in make.conf(5) and
>         installed a new loader, but have not rebuilt and  
> reinstalled the
>         boot blocks, then your loader will leave the console at 9600
>         baud.  You may either set comconsole_speed in loader.conf 
> (5), or
>         reinstall new boot blocks as described in boot(8).
>
> -ed

... or set -S option in boot.config.

 From other discussion, the -S option seems to be the most  
straightforward method.

The boot block update is described in boot0cfg(8) not boot(8), and  
must be done post-installworld, just to be 100% clear.

Thanks for adding it to UPDATING.