I believe complete restart is required
Use this one
ALT+F2 and log in using your root credentials
ype shutdown -r at the command line, and press ENTER to shut the system down.
Hi, I am also facing the same issue.
Do any one know -
1> what is the cause of this message
2> what is the impact
3> How to fix it.
1 of 1 people found this helpful
This message occurs when there isn't a serial port but one is configured in /etc/inittab. The message is harmless but annoying. The safe and responsible way to handle this is to shutdown the VM, Edit the settings, and Add a Serial Port.
If this is a lab or you like "living dangerously", the unsupported method would be to comment out the line in /etc/inittab that starts with 's0', save it and type 'init q'. This may be reset in an upgrade.
Much Thanks Andy, I checked both the options and it works fine.