[email protected] (Bastien Durel), 2021.01.14 (Thu) 18:07 (CET):
> Le jeudi 14 janvier 2021 à 16:59 +0100, Marcus MERIGHI a écrit :
> > [email protected] (Bastien Durel), 2021.01.14 (Thu) 16:05 (CET):
> > > Le jeudi 14 janvier 2021 à 15:47 +0100, Marcus MERIGHI a écrit :
> > > > [email protected] (Bastien Durel), 2021.01.14 (Thu) 10:20 (CET):
> > > > > I have a router connected via a serial port to another machine
> > > > > (which
> > > > > is usually powered off), wich fails to boot until I connect and
> > > > > validate the boot> prompt
> > > > >
> > > > > I configured my boot.conf as it follows :
> > > > >
> > > > > # cat
> > > > > /etc/boot.conf
> > > > > set timeout 10
> > > > > set tty com0
> > > >
> > > > I usually have
> > > >
> > > > stty com0 115200
> > > > set tty com0
> > > > set timeout 2
> > > >
> > > > and the machines boot automagically...
> > > >
> > > > Marcus
> > > >
> > > Actually, it looks like the automagic boot depends on the status of
> > > the
> > > attached computer : when it runs, the router boots automagically,
> > > and
> > > when it does not, then the boot waits until I press enter (after
> > > booting it, obviously)
> >
> > Ah, I failed on getting what you meant!
> >
> > Emitting wild guesses now... As soon as the boot> prompt receives
> > input,
> > it cancels the timout counter (and doesn't auto-boot). Could it be
> > that
> > your non-auto-booting machine receives something that looks like
> > input
> > to the boot> prompt? Can you test with the serial cable detached?
> >
>
> Done that; that's very strange : the router did not auto-boot, but did
> as soon as I plugged-in the serial cable in (I left minicom running on
> the other box) (or maybe after a few seconds, I did not checked in real
> time)
so you have ruled out the second box, good!
Things I'd try...
- any stray empty lines in /etc/boot.conf?
I'm not saying these would cause any harm, but I'd try
- add the speed setting ("stty com0 115200")
- move "set timeout X" to the end
good luck! and please report back if you solve this puzzle!
Marcus
