Hi Jay
I was able to configure GRUB for serial access using the Linux Serial HOW-TO
{I used a null modem cable}, and also also use all the shell features . I
used minicom for this purpose . The problem I am facing is how exactly to
modify the 'grub.conf' for my needs . I am using RedHat 9.0 .
The problems I am facing are :
1. On boot , GRUB should always accept the password from the serial
port{ttyS0 }before continuing with booting .
2. I want this without dropping to the console in GRUB. I tried modifying
the /boot/grub/grub.conf by adding the following lines ::
serial --unit=0 --speed=9600
terminal serial
This is not making GRUB go automatically in the serial console {the booting
continues and I get kernel panic}. However , if I drop down to the console
and then give these commands , then I am able to communicate from another
computer using minicom . I want this to happen automatically without the
need to drop to the console , so that I can use it for monitorless systems.
Could you give me any ideas ?
Thanks & Regards,
Karan Saberwal
----- Original Message -----
From: "Jay Daniels" <jay@xxxxxxxxxxx>
To: <shrike-list@xxxxxxxxxx>
Sent: Friday, December 05, 2003 6:55 PM
Subject: Re: GRUB serial configuration
> On Fri, Dec 05, 2003 at 03:13:50PM +0530, karan wrote:
> > Hi All
> >
> > I am trying to configure GRUB for serial port access for my project.
What I
> > want to do is ::
> >
> > 1. On boot , GRUB should always accept the password from the serial port
> > {ttyS0 }before continuing with booting .
> >
> > 2. I want this without dropping to the console in GRUB. I tried
modifying
> > the /boot/grub/grub.conf by adding the following lines ::
> >
> > serial --unit=0 --speed=9600
> > terminal serial
> >
> > This is not making GRUB go automatically in the serial console . However
,
> > if I drop down to the console and then give these commands , then I am
able
> > to communicate from another computer using minicom . I want to configure
it
> > so that I can make the machine into a monitor-less machine .
> >
> > Any help would be appreciated .
> >
> > Thanks and Regards,
> > Karan Saberwal
> ---end quoted text---
>
> Serial port console install
> http://www.cpqlinux.com/serialinstall.html
>
> Pay particular attention to:
> Headless server settings
>
> Slackware had all this stuff commented out in the /etc/inittab file,
> but RedHat you have to add it.
>
> Also, you will need to learn what type of terminal, cable, adaptor,
> etc you need to make it communicate with a dumb terminal. For a dumb
> terminal you need a special cable or an adpator, in most cases RST,
> CST, etc. Search for the Linux Serial howto. There are pages online
> with photos on how to setup the hardware. In other words, if you use
> a standard serial cable, you need an adaptor. I think you need a
> crossover cable, but it's been years since I setup a dumb terminal and
> logged in via serial port. There are also adpators you can make which
> use standard cativ twisted pair ethernet! It's very very tricky;)
>
>
> jay
>
>
> --
> Shrike-list mailing list
> Shrike-list@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/shrike-list
>
--
Shrike-list mailing list
Shrike-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/shrike-list
