2. edit /etc/uucp/sys
system S0@115200
port serial0_115200
time any
3. edit /etc/uucp/port to add serial0_115200
port serial0_115200
type direct
device /dev/ttyS0
speed 115200
hardflow false
4. Add serial port to VM, otherwise it will not show up.
5. run `cu S0@115200` and get a response "Connected."
To terminate, type `~.`
