Synopsis: The virt-manager tool is a graphical frontend to manage KVM, Xen or QEMU virtual machines, running either locally or remotely. It also works with lxc containers. While it may not win any prizes for its graphical design, it's a very useful and powerful piece of software. For hypervisors and alternative manager, see Virtualisation. |
Installation
/bin/su -c "dnf install virt-manager"
or
/bin/su -c "urpmi virt-manager"
It will automatically pull all dependencies such as qemu-kvm
After that you have to enable the libvirt daemon at boot time:
systemctl enable libvirtd
Start this daemon with:
systemctl start libvirtd
Permissions
As a normal user you don't have the right permissions to do anything, and it's difficult to get them. First add yourself to the kvm group:
/bin/su -c "usermod -aG kvm $USER"
and create a file /etc/polkit-1/rules.d/50-libvirt.rules with the following content:
/* Allow users in kvm group to manage the libvirt daemon without authentication */ polkit.addRule(function(action, subject) { if (action.id == "org.libvirt.unix.manage" && subject.isInGroup("kvm")) { return polkit.Result.YES; } });
Logout, and you are ready to create virtual machines
Virtual Machines in Home
If you want to create a storage pool in your home directory, you have to add permissions on your home directory for the kvm group
/bin/su -c "setfacl -m g:kvm:rwx $HOME"
Shorewall
If you have enabled the Shorewall firewall, traffic from the virtual machine will be blocked.
Edit /etc/shorewall/interfaces and add the following lines:
virt virbr1 detect dhcp,routeback virt vnet+ detect destonly
Edit /etc/shorewall/zones and add the following line:
virt ipv4
Edit /etc/shorewall/policy and add the following line:
virt all ACCEPT info fw virt ACCEPT
Restart Shorewall:
/bin/su -c "shorewall restart"