FreeBSD cannot power down

[Unga]

--- On Tue, 12/2/08, Unga <unga888 at yahoo.com> wrote:

> From: Unga <unga888 at yahoo.com>
> Subject: FreeBSD cannot power down
> To: freebsd-questions at freebsd.org
> Date: Tuesday, December 2, 2008, 11:22 PM
> Hi all
> 
> After a kernel recompilation on i386 RELENG_7 (not the
> latest), I cannot power down the machine.
> 
> kldstat shows acpi.ko is loaded.
> 
> It used to switch off but now the "shutdown -p
> now" halts the system with following messages:
> The operating system has halted.
> Please press any key to reboot.
> 
> What else could I check to identify the cause? 
> 
> Appreciate your ideas on this.
> 

I found /dev/acpi is missing. I may have sure made a mistake somewhere.

What is the proper fix to get the /dev/acpi?

Best regards
Unga