Step-by-step – KVM Installation in Linux Mint 20

June 19, 2020 | By the+gnu+linux+evangelist.

Installing

  1. 2. Pre-Installation Checks

    Then Check if KVM Can be Installed
    With:

    egrep -c '(vmx|svm)' /proc/cpuinfo

    If in Output > 0 then your Processor support Hardware Virtualization!
    (But on a PC you may have still to enable it on BIOS…)Now again, Install the needed Tool:

    sudo apt install cpu-checker

    And then Verify it:

    kvm-ok

    If it’s Good you will see:

    INFO: /dev/kvm exists
    KVM acceleration can be used
    

    Finally, if the answer is negative you can still use KVM but only in a Slow mode…

  2. 3. Installing KVM

    Now you are Ready to Install KVM on Linux Mint System

    sudo apt update
    sudo apt install qemu qemu-system qemu-kvm libvirt-bin Linux Mint-vm-builder bridge-utils

    Following Linux Mint Documentation about KVM related Packages:

    • libvirt-bin provides libvirtd which you need to administer qemu and kvm instances using libvirt
    • qemu & qemu-kvm (kvm in Karmic and earlier) are the backend
    • ubuntu-vm-builder powerful command line tool for building virtual machines
    • bridge-utils provides a bridge from your network to the virtual machines
  3. 4. Adding User to Group

    Next Add User to libvirt Group
    First, you need to Make the Group:

    sudo addgroup libvirtd

    And then Add User with:

    sudo adduser `id -un` libvirtd

    This because only the Users of this Group can Run Virtual Machines.
    Then Relogin to Enable this Setup!

  4. 5. Verifing KVM Installation

    Finally, Test Installation.

    Simply performing:

    virsh list --all

    And in the Output you should find:

     Id    Name                           State
    ----------------------------------------------------

    This because still no VMs has been made.

  5. 6. Starting Libvirt Daemon

    Again to Start Libvirtd Daemon.

    sudo service libvirtd start

    And to Enable it on Boot:

    sudo update-rc.d libvirtd enable
  6. 7. Creating and Running KVM VMs

    KVM Virtualization Getting-Started Guide

    KVM+QEMU+VirtManager VM Quick Start

Contents


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