Re: Access to conserver machine's own console?

You can't get access to the port in that manner.  You need to be
connected physically to the serial port.  One idea is to attach a serial
cable from ttyS0 -> ttyS1.

 
On Mon, 2006-09-25 at 17:50 -0600, Jim Ockers wrote:
> Hi,
>  
> I was wondering if it's possible to use conserver to get access to the
> console of the machine which is itself running conserver?  And if so,
> how do you do it?  I don't see this mentioned in any documentation or
> FAQ - sorry if it's there & I missed it.
>  
> Consider a linux system with a single serial port which is defined as
> the kernel's serial console.  Some software starts an interactive
> application during start-up, which displays and accepts input on the
> serial console.  I would like to enable network access to the serial
> console so that it's possible to interact with this application over
> the network.
>  
> I was hoping to run conserver to enable network access to localhost's
> serial tty which is running a getty:
>  
> [root@jimockers-rh72-1 conserver.cf]# grep ttyS1 /etc/inittab
> s1:2345:respawn:/sbin/agetty 9600 ttyS1 vt100
> 
> [root@jimockers-rh72-1 conserver.cf]# cat /etc/console/conserver.cf
> console simple { master localhost; type exec; rw *; }
> access * {
>         trusted 127.0.0.1;
> }
> 
> console tty {
>         master localhost;
>         type device;
>         device /dev/ttyS1;
>         baud 9600;
>         parity none;
>         rw *;
> }
> 
> Of course this does not work because conserver gets an I/O error (as
> does agetty) when trying to wrestle for control of the port.
>  
> What can I do to enable remote network access to the conserver's
> serial console?
>  
> Thanks,
> Jim
>  
> P.S. The motherboard has only one serial port and we can't add more
> hardware.  Otherwise I would install a null-modem jumper between the
> two serial ports and use conserver's access to one to log into the
> other.  Oh well.
>  
> --
> Jim Ockers, P.Eng. (jim.ockers@pason.com)
> Contact info: http://www.ockers.ca/pason.html
> 
> PS Sorry about mime/html email - I'm unable to turn it off just now.
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