QEMU

Make sure QEMU and KVM are installed, your host is a x86_64 machine and have at least 2GB of RAM.

Run the ISO image like this:

    
qemu-system-x86_64 -enable-kvm -m 1G -vga qxl -cdrom lirios-2017.07.09.iso
    

For the more adventurous, here's how to enable networking and forware port 22 from VM to the host port 10022:

    
qemu-system-x86_64 -enable-kvm -m 1G -vga qxl -net user,hostfwd=tcp::10022-:22 -net nic -cdrom lirios-20170116-x86_64.iso
    

Please note that SSH is not enabled by default.

VirtualBox

Unfortunately VirtualBox doesn't support Wayland yet.

VMware

If you try the ISO image on VMware, please enable 3D acceleration.

To do so select the virtual machine, click on the VM → Settings menu item, now in the Hardware tab select Display and check Accelerate 3d graphics.