Trying to start PCF Dev on an Ubuntu 19.10; fails with the bellow output:
$ cf dev start
Downloading Resources...
Progress: |====================>| 100.0%
Setting State...
Error: argument "virbr0" is wrong: Device does not exist
Cannot find device "virbr0"
Creating the VM...
Starting the VM...
Fetching VM Address...
FAILED
cf dev start: exit status 1
Turns out KVM is required to be installed:
$ sudo apt-get install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils
Source: Installation of KVM