Kernel-based Virtual Machine is a virtualization module in the Linux kernel that allows the kernel to work as a hypervisor. Today, we will explore how to install KVM on an ubuntu machine. We will use Ubuntu’s latest version, 22.04. The installation will take place using the command line. We will run basic Linux commands to install KVM and its necessary dependencies. By the end of this tutorial, you will know how easy it is to install KVM on your system.
Following are the steps involved in installing KVM on Ubuntu 22.04:
Step 1: Update and Upgrade Your Ubuntu 22.04 System
Before installing KVM on your system, update and upgrade the system.
Use the following command for updating the system:
Next, use the following command for upgrading the system:
Step 2: Check KVM Compatibility With Your System
Before installing KVM, make sure that KVM is compatible with your system. Otherwise, you will keep running into errors, and KVM won’t install properly.
To check the compatibility between the two, run this command:
If the output you get is greater than 0, that means KVM is compatible with the system and can be installed.
Step 3: Install Necessary Packages for KVM
Now that we have confirmed the compatibility, let’s begin with installing essential KVM dependencies using the following command:
Step 4: Enable Essential Services to Virtualize and Check Their Status
After successfully installing essential dependencies, let’s enable the services that are needed to virtualize. Enable livirtd using the following command:
Now start libvirtd by issuing the following command:
Let’s verify the status of libvirtd using the command mentioned below. If it is running fine, you will see ‘active’ in the output.
Step 5: Add Your User to the KVM and Libvirt Group
Now add your user to KVM and libvirt group to get up KVM and avoid running into issues. The user can be added to the KVM group using this command:
Now add the user to the libvirt group by using this command:
Step 6: Make a Bridge Network for the VMs (Virtual Machines)
In this step, we will create a bridge network. This can be done by creating a netplan configuration file like this:
Now add the following configuration in the 01-netcfg.yaml file:
- to: default
Once you have pasted the configuration in the file, save it and exit.
Step 7: Apply Changes Using Netplan and Review the Changes
To apply the configurations, run the following command:
You can also review the chnages using the ip addr command like this:
In today’s tutorial, we saw in detail how to install KVM on Ubuntu 22.04. Before installing, we tested the compatibility between kvm and our Ubuntu system. After that, we installed the necessary KVM packages and then installed KVM. Then we also showed you how to create a configuration file to enable a bridged network. In the end, we learned how to verify changes using an easy-to-follow command.