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Date: Wed, 12 Apr 2006 08:18:16 -0700
From: Brooks Davis <brooks@one-eyed-alien.net>
To: John Baldwin <jhb@freebsd.org>
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Cc: freebsd-current@freebsd.org, Rong-En Fan <grafan@gmail.com>,
	flz@freebsd.org
Subject: Re: tail, tr: not found when booting
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On Wed, Apr 12, 2006 at 10:41:36AM -0400, John Baldwin wrote:
> On Tuesday 11 April 2006 23:27, Rong-En Fan wrote:
> > Hi,
> > 
> > I just upgraded my -currnet to today. I noticed that rc complains about
> > tail and tr not found:
> > 
> > [...]
> > Trying to mount root from ufs:/dev/ad0s3a
> > start_init: trying /sbin/init
> > tail: not found
> > tr: not found
> > Loading configuration files.
> > kernel dumps on /dev/ad0s3b
> > [...]
> > 
> > The following line in rc.subr looks suspicious
> > 
> > JID=`ps -p $$ -o jid | tail -1 | tr -d ' '`
> > 
> > They should be replaced by absolute name as the rest command in
> > rc.subr. :-)
> 
> You don't have tail and tr in /usr/bin?  Hmm, I wonder if /usr is
> mounted at that point, if not then rc.subr needs to be fixed.

You can't do anything with /usr this early.  This needs to be
moved to _find_processes() where it's actually used.  I suspect it
should also be converted to pure shell code.  I think this would work:

for ent in `ps -p $$ -o jid`; do
	JID=$ent 
done

-- Brooks