I am on my third confusing error using virt-manager to create an armv7 build environment. First one was some ca-cert error, which meant I forgot to type a slash

I am on my third confusing error using virt-manager to create an armv7 build environment. First one was some ca-cert error, which meant I forgot to type a slash somewhere in some URL, second was something about not being able to enable firewall, which required firewalld and dnsmasq to be installed, now I'm having an error adding a qcow2 image to my vm setup, it probably doesn't like my mounted storage. We can compare this experience to terrible vendor lockins.