![]() This device uses NAT to connect the guests’ machines to the outside world. Network Setup #Ī bridge device called “virbr0” is created by default during the libvirt installation process. Log out and log back in so that the group membership is refreshed. $USER is an environment variable that holds the name of the currently logged-in user. To do that, type in: sudo usermod -aG libvirt $USER sudo usermod -aG kvm $USER ![]() To be able to create and manage virtual machines, you’ll need to add your user You can verify it by running: sudo systemctl is-active libvirtd active Once the packages are installed, the libvirt daemon will start automatically. virt-manager provides an easy-to-use GUI interface and supporting command-line utilities for managing virtual machines through libvirt.virtinst - a set of command-line tools for creating virtual machines.bridge-utils - a set of command-line tools for configuring ethernet bridges.libvirt-bin - software for managing virtualization platforms.qemu-kvm - software that provides hardware emulation for the KVM hypervisor.Run the following command to install KVM and additional virtualization management packages: sudo apt install qemu-kvm libvirt-bin bridge-utils virtinst virt-manager Refer to your motherboard documentation for the information on configuring your system BIOS. The process of enabling the AMD-V or VT technology depends on your motherboard and processor type. Otherwise, the command will print and a failure message and optionally a short message on how to enable the extension. If the processor virtualization capability is not disabled in the BIOS the command will output: INFO: /dev/kvm exists Once done, check if your system can run hardware-accelerated KVM virtual machines: kvm-ok To install the package: sudo apt update sudo apt install cpu-checker Run the following commands as root or user with sudo privileges To check if VT is enabled in the BIOS, use the kvm-ok tool, which is included in the cpu-checker package. On some machines, the virtual technology extensions may be disabled in the BIOS by the manufacturers. Otherwise, if the output is 0 it means that the CPU doesn’t support hardware virtualization. If your CPU supports hardware virtualization, the command will output a number greater than zero, which is the number of the CPU cores. The system should have either an Intel processor with the VT-x (vmx), or an AMD processor with the AMD-V (svm) technology support.Ĭommand to see if your processor supports hardware virtualization: grep -Eoc '(vmx|svm)' /proc/cpuinfo ![]() To be able to run guests with more than 2 GB of RAM, and to host both 32-bit and 64-bit KVM guests, you must have a 64-bit host system.īefore continuing with the installation, make sure your Ubuntu host machine supports KVM virtualization. The same instructions apply for Ubuntu 16.04 and any other Ubuntu-based distribution, including Linux Mint and Elementary OS. We’ll also show you how to create virtual machines that can be used as a development environment for PHP, Node.js, Ruby, and so on. This guide explains how to install and configure KVM on Ubuntu 18.04 desktop. Each guest has its own operating system and dedicated virtual hardware such as CPU(s), memory, network interfaces and storage. It allows you to run multiple isolated guest virtual machines based on Linux or Windows. (Kernel-based Virtual Machine) is an open-source virtualization technology built into the Linux kernel. ![]()
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