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

[Michael Holmes <maholmes@xxxxxxxxxx>]

Jonathan Hall wrote:

> 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?

it is locking up ttyS3, (my modem)  and the lock file is set up to 
ttyS1(onboard serial port 2)
Which disables the modem(it dials out, and as it is setting up with the server, 
it hangs up just
as connection is made.)  Also parallel port has a lock file on it also. I take 
the
s1:234:respawn:/etc/mgetty.....  off the inittab  (#   added to first of line) 
the modem (PPP0)
and the printer both start working on reboot.  If I remover the # from it and 
reboot, modem and
printer stop.  If I try uugetty, I get respawning too quickly deactivating s1 
for 5 minutes.
When I log on to Linux side, I will copy the inittab and config file for S1 and 
send it to the
list.  ( I was on Micro$oft windoz doing home work for work (I wrtie in VC++) 
[too lazy to learn
gtk-although I am now reading the howto!] )

>
>
> 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  =-
> > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> >
>
> --
> Floppy disk tip #4: Never insert a diskette into the drive upside down.  The
> data can fall off the surface of the disk and jam the intricate mechanics of
> the drive.
> --
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>   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  =-
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -