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serial console, no graphic card

From: Pierre Dupond
Subject: serial console, no graphic card
Date: Mon, 16 Dec 2019 15:56:56 +0100

Hi All,
      I plan to emulate with qemu a machine without graphic card
and with only a serial console.

To achieve that goal I have two problems to solve:
        1) to have an emulation without a graphic card and a serial
           console running at 115200 baud
        2) on the host to be able to interact with the emulation with
           a terminal program running at 115200 baud.

To solve the point 1, one should probably use the instruction «qemu -nographic 

The problem is that I have found nowhere in the documentation how to force the 
of serial port in the emulation to 115200. I haven't even see any mention of 
the speed
of the serial port.

My second problem is how to use a terminal program (kermit, putty or cu) to 
with the serial port of the emulated machine. The first pitfall is how to
specify the port where to read/write data. If the machine were
real, «/dev/ttyS0» could be used to transmit data to the serial port, but
I have seen no way to communicated with the serial interface of 
the emulated machine neither on Linux nor on Windows host. 

Any pointers would be greatly appreciated.

Best regards,

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