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28 March 2006

Linux Console

This is how to configure the serial port in Linux to act as a Console port. You may need it if you have multiple PC's and you don't want to get a seperate Keyboard, and Mouse for each of them and also you don't have money to buy a KVM.
  1. In the file “/etc/inittab” add the following line:
    • S0:2345:respawn:/sbin/agetty –L –f /etc/issueserial 9600 ttyS0 vt100
      • Issueserial: this is the file where you write your custom greeting message
      • 9600: Baud rate
      • ttyS0: COM-1, you may use ttyS1 for COM-2
  2. Then type the following command to activate the new settings “init q"
  3. In order to allow users to connect as root add the following to “/etc/securetty” ttyS0, or ttyS1
  4. [Optional] To redirect the console output to your serial port add the following to “/etc/grub.conf” Kernel /vmlinuz-2.4.20-18.9 ro root=LABEL=/ console=ttyS1,9600, The console redirection may cause some issues with kudzu so you need to disable it:chkconfig kudzu off
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