KVM

Fedora 28

I had removed zfs-fuse, which also removed a number of kvm modules that I needed. To re-install I was able to follow the following link

sudo dnf install libvirt-daemon
sudo systemctl enable libvirtd
sudo systemctl start libvirtd
sudo dnf install qemu-kvm qemu-img libvirt-python python-virtinst libvirt-client virt-install virt-viewer device-mapper-libs libvirt-daemon-driver-qemu libvirt-daemon-config-network libvirt-daemon-kvm

Create Storage Domain

I have a ZFS pool already established, with several volumes in use. I will be creating a new volume dedicated to this purpose and will set it as one of two pools. The other being the ISO directory where I keep ISOs.

virsh # pool-list
 Name                 State      Autostart 
-------------------------------------------
 default              active     yes              
 michael              active     yes       
 qemu                 active     yes       

virsh # pool-autostart --pool default --disable 
Pool default unmarked as autostarted

virsh # pool-autostart --pool michael --disable 
Pool michael unmarked as autostarted

virsh # pool-autostart --pool qemu --disable 
Pool qemu unmarked as autostarted

virsh # pool-list 
 Name                 State      Autostart 
-------------------------------------------
 default              active     no        
 localstorage         active     no        
 michael              active     no        
 qemu                 active     no        

Now I can create the new pool. I am going to use the most basic config options.

virsh # pool-create-as localstorage --type dir --target /raid5/libvirt
Pool localstorage created

virsh # pool-autostart --pool localstorage
Pool localstorage marked as autostarted

virsh # pool-list
 Name                 State      Autostart 
-------------------------------------------
 default              active     no        
 localstorage         active     yes       
 michael              active     no        
 qemu                 active     no        

virsh # 

Remove Default Network

Purpose

To remove the default network from the host. This can conflict with other services running if this is a shared environment. In my case I run a DNS server off the host, and the default network uses DNS forwarding with dnsmasq. When dnsmasq is running it takes port 53 which prevents my DNS service from running.

Process

[root@nas ~]# virsh
Welcome to virsh, the virtualization interactive terminal.

Type:  'help' for help with commands
       'quit' to quit

virsh # net-destroy default
Network default destroyed

virsh # net-list
 Name                 State      Autostart     Persistent
----------------------------------------------------------

virsh # exit