No serial console is configured:
[email protected]:~$ show configuration commands | grep console [email protected]:~$
But syslog tries to restart it
Oct 16 10:53:40 vyos systemd[1]: [email protected] holdoff time over, scheduling restart. Oct 16 10:53:40 vyos systemd[1]: Stopping Serial Getty on ttyS0... Oct 16 10:53:40 vyos systemd[1]: Starting Serial Getty on ttyS0... Oct 16 10:53:40 vyos systemd[1]: Started Serial Getty on ttyS0. Oct 16 10:53:40 vyos agetty[2164]: /dev/ttyS0: not a tty
VM running on VMware vSphere 6.5.x installed from ISO with no serial port connected in the VM