fsck: broken file system with background check remains broken after bootup

[Wilkinson, Alex]

    0n Tue, Jan 04, 2005 at 02:01:22PM +0100, Oliver Fromme wrote: 
    
    >By the way, you can map a key combination (Ctrl-Alt-Del or
    >something else) to the »halt« or »power-down« functions,
    >using kbdcontrol, so it's very easy and intuitive to shut
    >down the machine properly.  See the kbdmap(5) manpage for
    >details.

This inspires me to ask this question:

Is it possible to set up FreeBSD to do a clean shutdown upon a pressing
the power button ? i.e. in the same fashion as Solaris does out of the
box.  Is this an ATX feature or a kernel feature in the PC world ?

 - aW