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From: jb <jb.1234abcd@gmail.com>
Subject: Re: FB 9.1 boot loader problem in VirtualBox
Date: Sun, 6 Jan 2013 18:38:45 +0000 (UTC)
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Matthew Seaman <matthew <at> FreeBSD.org> writes:

> 
> On 06/01/2013 11:19, jb wrote:
> > Next problem:
> > I selected powerd service during install, but after boot, there was error
> > msg:
> > starting powerd
> > powerd lookup freq: No such file or directory
> > /etc/rc: WARNING failed to start powerd
> 
> Again -- standard for VirtualBox hosts: powerd doesn't work -- the guest
> OS can't control the frequency of the host CPU, which is what you'ld
> expect thinking about it.
> 
> Just disable powerd in /etc/rc.conf to get rid of the error message.
> 
> 	Cheers,
> 
> 	Matthew

If so, then bsdinstall should stop offering powerd as a service during
installation (regardless of whethter in real or virtual env). 

It can discover this condition with checking for lack of
sysctl -a | grep dev.cpu.0.freq
sysctl -a | grep dev.cpu.0.freq_levels
in /usr/libexec/bsdinstall/services,

exactly as it does with
     if (sysctlnametomib("dev.cpu.0.freq", freq_mib, &len))
       err(1, "lookup freq");
       ...
     if (sysctlnametomib("dev.cpu.0.freq_levels", levels_mib, &len))
       err(1, "lookup freq_levels");
in /usr/sbin/powerd (via /etc/rc.d/powerd) - see powerd.c.

jb