[juneau-lug] Re: really headless?

  • From: Myron Davis <myrond@xxxxxxxxxxx>
  • To: juneau-lug@xxxxxxxxxxxxx
  • Date: Sun, 3 Nov 2002 22:04:31 -0800

Hi bdk!

When you create headless machine's (without video cards) it is VERY
helpful if something goes wrong for you to get a console through a
serial port.  (just in case).  e.g. you make a error in your setup
sshd doesn't start or something that way you can plug in a null modem
cable.

vi /etc/inittab
add the line
T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100

vi /etc/lilo.conf
at the very top add
serial=0,9600N8

You don't have to have the box accessible via the serial port but from
personal experience it can be EXTREMELY helpful to plug in a
null-modem cable than taking the box apart and sticking
in a video card.  (although video cards are now pretty cheap).

If you want to run your box just w/o a monitor it'll work fine.
hope that helps...

-Myron


On Sun, 03 Nov 2002, bdk wrote:

> 
> What would that do w/ the serial port, I know it would be good, but "how" why?
> 
> -sean
> 
> At 20:15 11/03/02 -0800, you wrote:
> >Hi bdk!
> >
> >Linux works great w/o a video card.  I recommend if you have a serial
> >port putting
> >T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100
> >(if your serial port was on COM1)
> >also put in your lilo.conf
> >serial=0,9600N8 (e.g. com1)
> >
> >You will get a bios beep error because your bios will not detect a
> >video card, what I have done is hexedit a bios using awdhack (and
> >hiew) and do a search for speaker beeps and flip them around and
> >reburn your bios.
> >
> >-Myron
> >
> >On Sun, 03 Nov 2002, bdk wrote:
> >
> > >
> > > Can linux run w/o a video card? Or does headless just mean w/o a monitor?
> > >
> > > I can always try to remove the card from the box and then boot, but I'm in
> > > the process of installing debian and had to ask.
> > >
> > > -sean
> > >
> > >
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