[aclug-L] Re: ttyS1=[alt + F4] [oh ooh]

[Jonathan Hall <jonhall@xxxxxxxxxxxx>]

Well... not really.  You can enable "console on serial port" in the
kernel... but that's not really what you're looking for I don't think, and
is probably more difficult to configure than mgetty.  :-)

What specific problems are you having at this point?


On Mon, Jan 03, 2000 at 11:11:55PM -0600, Michael Holmes wrote:
> I ended up took the addition off the inittab, for now, I am lazy and I will 
> make it work!!
> I wonder if I could put a ttys(X) into the kernel directly.
> 
> Michael
> 
> Jonathan Hall wrote:
> 
> > > > You're trying to do PPP over the connection?
> > >
> > > no, ppp0 would be over ttyS3-- isa pnp modem--jumper set
> >
> > Okay
> >
> > > > There's no reason you shouldn't be able to... I just didn't know that's 
> > > > what
> > > > you were trying to do.
> > > >
> > > > What you describe sounds like a possible IRQ conflict... Are you sure
> > > > nothing else is using the same IRQ ttyS1 is using (IRQ3 would be 
> > > > normal).
> > >
> > > not now, but when up and running there will be a crash if I tried to 
> > > bring up the ppp
> > > while I was using the ttyS1 as they share the same IRQ.
> >
> > If at all possible, you really should get different IRQs for each serial
> > port...e ven if you aren't using the same IRQ on two ports at the same time.
> > Set ttyS3 to IRQ5 or something if you can.  I'd be willing to bet that this
> > sharing of IRQs is what's causing your problems.
> >
> > > > Also... are you using a null-modem cable, or a standard serial cable?
> > >
> > > yes I am using a null modem, and I do get use out of it now, but when the 
> > > mgetty line
> > > is in my inittab, it also places a lock file on the ppp also.  The ppp is 
> > > dialing and
> > > then sees the lock file, and hangs up.
> >
> > There's a way to share the line between ppp and mgetty... see the mgetty man
> > page, I don't remember the exact mgetty switch to use right off hand.  I do
> > know I have done it before, though.
> >
> > > > And are both ends attempting to communicate at 38400?  And do both ends
> > > > have at least 16450 UARTs (I would assume they do if they're 486's or
> > > > newer).
> > >
> > > they are both set at the same speed first 19200 then I bumped it to 
> > > 38400.  If they
> > > are at different speeeds, you get gibberish at both ends.  I get the 
> > > proper graphics
> > > and communications, but it is only 16 bytes shot down, and then it waits 
> > > 120 seconds
> > > and sends another 16 bytes..... (this is on the direct connection)
> >
> > Okay.  If they're both using 16550 UARTs, you should be able to go clear up
> > to 115200 without problems... Probably not a big deal if you're just doing
> > text stuff, but if you start using PPP or transfering files over the link,
> > etc, the extra speed will no doubt be appreciated. :-)
> >
> > --
> > "I'm just glad it'll be Clark Gable who's falling on his face and not Gary
> > Cooper." -- Gary Cooper, on his decision to not take the leading role in
> > "Gone With The Wind."
> > --
> > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> >   Jonathan Hall  *  jonhall@xxxxxxxxxxxx  *  PGP public key available
> >  Systems Admin, Future Internet Services; Goessel, KS * (316) 367-2487
> >          http://www.futureks.net  *  PGP Key ID: FE 00 FD 51
> >                   -=  Running Debian GNU/Linux  =-
> > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> 

--
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--
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  Jonathan Hall  *  jonhall@xxxxxxxxxxxx  *  PGP public key available
 Systems Admin, Future Internet Services; Goessel, KS * (316) 367-2487
         http://www.futureks.net  *  PGP Key ID: FE 00 FD 51
                  -=  Running Debian GNU/Linux  =-
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