Re: tail, tr: not found when booting

On Wed, Apr 12, 2006 at 04:33:09PM +0100, Florent Thoumie wrote:
> On Wed, 2006-04-12 at 08:18 -0700, Brooks Davis wrote:
> > 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
> 
> Oops, indeed. I've been over-confident thinking tr/tail were in /, and
> testing stop/start obviously didn't help.
> 
> I can't think of another way to do this.

I've checked (at least as much as I can without an actual jail around)
and the above appears to set JID correctly.

-- Brooks

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