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Date: Sun, 25 Jun 2006 16:22:55 -0700
From: Maxim Sobolev <sobomax@FreeBSD.org>
Organization: Sippy Software, Inc.
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To: Nate Lawson <nate@root.org>
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Cc: current@FreeBSD.org
Subject: Re: kbdmux support for ddb and mountroot?
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Nate Lawson wrote:
> Maxim Sobolev wrote:
>> Works here to specify alternate root just fine. I am missing something?
>>
>> -Maxim
>>
>> Nate Lawson wrote:
>>> kbdmux does not currently support ddb and mountroot in both -current 
>>> and 6-stable.  This means that if you get a panic, no backtrace or 
>>> other interaction is possible.  Also, if your /etc/fstab is wrong, no 
>>> way to specify an alternate root.
>>>
>>> Are there any plans to improve this?  What needs to be completed to 
>>> get back to previous support for these features?
>>>
>>> Thanks,
> 
> I'm using a PS/2 keyboard on one machine (RELENG_6) and a built-in PS/2 
> keyboard on my laptop.  Neither register any keystrokes in DDB or with 
> alternate root unless I disable kbdmux with the tunable.

USB keyboard works just fine here (7-CURRENT) for alternate root 
selection via kbdmux. I don't know if there are some differences in 
kbdmux behavior between RELENG_6 and HEAD.

-Maxim