KVM virt-install: Install OpenBSD As Guest Operating System

Originally published at: https://www.cyberciti.biz/faq/kvmvirtualization-virt-install-openbsd-unix-guest/

How do I install OpenBSD as guest operating system when using KVM? How can I use virt-install to setup OpenBSD VM under KVM running on a CentOS Linux 7 server?