From Fedora Project Wiki
No third party repositories needed.
INSTALLATION
Fedora 21:
sudo yum install virt-manager qemu-kvm qemu-img libvirt-daemon libvirt-daemon-driver*
Fedora 22:
sudo dnf install virt-manager qemu-kvm qemu-img libvirt-daemon libvirt-daemon-driver*
SERVICE PREPARATION
sudo systemctl start libvirtd
CREATE YOUR VIRTUAL NETWORK (OPTIONAL)
- Open virt-manager by typing it into the Gnome Search Bar, or finding it under 'System' in the KDE applications menu. You may be asked for your root password.
- Go to Edit - Connection Details.
- Click on the Virtual Networks tab and then click the + sign at the lower left corner of the current window.
- For Network Name, your only limit is your imagination. Then, click Forward.
- Make sure Enable IPv4... and Enable DHCPv4 are both checked. You do not need to enable Static Route Definition.
- Network: 192.168.100.0/24 (example)
- Start: 192.168.100.128 (example)
- End: 192.168.100.254 (example)
- Click Forward twice (bypassing the IPV6 address space, unless you plan on deploying more than 4.3 billion VMs on your host).
- Select Forwarding to physical network and leave the Destination and Mode settings default.
- Click Finish.
- At this point, you should be able to use your new Virtual interface (most likely named vibr0) as the network for your VMs.
RUNNING A FEDORA 20 VIRTUAL MACHINE (EXAMPLE)
- Download the Fedora 20 Net Installation ISO.
- Open virt-manager by typing it into the Gnome Search Bar, or finding it under 'System' in the KDE applications menu. You may be asked for your root password.
- Go to File - New Virtual Machine, or click on the Computer Monitor Icon, located below the File menu.
- Choose the ISO install method and browse to the Fedora 20 NetInst ISO.
- Continue through the rest of the steps using your preference for V-CPU, RAM and Disk Space.
- After clicking Finish on step 5 of 5, your Virtual Machine will open a Viewer where you can proceed with the OS installation.
ENJOY!