Install KVM in an Ubuntu Server

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Install KVM in an Ubuntu Server following https://help.ubuntu.com/community/KVM/Installation instructions for Ubuntu 18.10 LTS:

Verify

  • Check processor supports virtualisation:

egrep -c '(vmx|svm)' /proc/cpuinfo If output is 0 it means that your CPU doesn’t support hardware virtualization. If output is 1 or more it support hardware virtualisation ( NOTE: virtualisation should be enabled in the system BIOS)

  • Now Install kvm-ok utility using below command, it is used to determine if your server is capable of running hardware accelerated KVM virtual machines.

sudo apt install cpu-checker and run kvm-ok command and verify the output.

  • Execute:

sudo apt-get -y install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils virtinst && virsh list --all 

virsh list --all
 Id    Name                           State
----------------------------------------------------

Following Ubuntu 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
  • bridge-utils provides a bridge from your network to the virtual machines

Start & enable libvirtd service

  • sudo service libvirtd start
  • service libvirtd status

Output:


And create your fist guest machine from command line using virt-install python script.

virt-install --virt-type kvm --name buster-amd64 --memory 1G --cdrom ~/iso/Debian/debian-10.0.0-amd64-netinst.iso --disk size=10G --os-variant debian10


Optional software to install:


Related commands

Packages

See also

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