3. A serial console client

In order to connect to the serial console, we will use another machine (the client) which will be cabled to our server by using a null modem cable.

On the top of this we will use minicom, a serial communication program.

I consider that the machine is using its first serial port, aka ttyS0.

Install minicom with:

# yum install minicom

Then fire it up and once prompted for, type Ctrl-A Z. This fires an option panel.
Now, type: O and navigate down to "Serial port setup", and Enter.

Configure the serial device by typing A and make sure the value is /dev/ttyS0, Enter to validate.

Now, type E to edit the protocol parameter. Type E to choose (115200) and Enter to validate, Enter again to go back to the previous screen.

Finally, save your settings by going to "Save setup as dfl", and Exit.

Now, typing Ctrl-A M will re-initiate the "modem" and should show you a login screen.