kbdmux support for ddb and mountroot?

[Maxim Sobolev]

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