kern/44669: `boot -c' doesn't work on my MacBook1,1

[Taylor R Campbell <campbell+netbsd%mumble.net@localhost>]

>Number:         44669
>Category:       kern
>Synopsis:       `boot -c' doesn't work on my MacBook1,1
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 02 19:50:00 +0000 2011
>Originator:     Taylor R Campbell <campbell+netbsd%mumble.net@localhost>
>Release:        NetBSD 5.1
>Organization:
>Environment:
System: NetBSD oberon.local 5.1 NetBSD 5.1 (GENERIC) #0: Sun Nov  7 14:39:56 
UTC 2010  
builds%b6.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-RELEASE/i386/201011061943Z-obj/home/builds/ab/netbsd-5-1-RELEASE/src/sys/arch/i386/compile/GENERIC
 i386
Architecture: i386
Machine: i386
>Description:

        If I boot my MacBook1,1 with the `-c' switch, the userconf
        prompt shows up with a cursor that flashes wildly.  Keyboard
        input does nothing.  The same happens with a -current kernel.

>How-To-Repeat:

        Boot NetBSD on a MacBook1,1 with the `-c' switch.  Fail to
        interact with userconf.

>Fix:

        Yes, please!  jmcneill suggested that userconf needs to talk
        USB rather than PS/2 or something like that.