Difference between revisions of "Install KVM in an Ubuntu Server"

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Execute:  
 
Execute:  
 
* <code>sudo [[apt-get -y install]] [[qemu-kvm]] [[libvirt-daemon-system]] [[libvirt-clients]] [[bridge-utils]] [[virtinst]] && [[virsh list --all]]</code>
 
* <code>sudo [[apt-get -y install]] [[qemu-kvm]] [[libvirt-daemon-system]] [[libvirt-clients]] [[bridge-utils]] [[virtinst]] && [[virsh list --all]]</code>
−
 
−
virsh list --all
 
−
  Id    Name                          State
 
−
----------------------------------------------------
 
−
 
  
 
Verify:  
 
Verify:  
 
* <code>[[service libvirtd status]]</code>
 
* <code>[[service libvirtd status]]</code>
  
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It will create <code>virbr0</code> and <code>virbr0-nic</code> interfaces and default network.
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It will create <code>[[virbr0]]</code> and <code>[[virbr0-nic]]</code> interfaces and default network.
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  virsh net-list
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  [[virsh net-list]]
 
   Name      State    Autostart  Persistent
 
   Name      State    Autostart  Persistent
 
  --------------------------------------------
 
  --------------------------------------------
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  [[brctl show]]
 
  [[brctl show]]
 
  bridge name bridge id STP enabled interfaces
 
  bridge name bridge id STP enabled interfaces
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  virbr0 8000.525400d54de6 yes virbr0-nic
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  [[virbr]]0 8000.525400d54de6 yes virbr0-nic
  
  
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Exceute the folowing comands:
 
Exceute the folowing comands:
  
−
*<code>sudo service libvirtd start</code>
+
*<code>sudo [[service libvirtd start]]</code>
 
*<code>[[service libvirtd status]]</code>
 
*<code>[[service libvirtd status]]</code>
  
  
−
And create your fist guest machine from command line using virt-install python script.
+
And create your fist guest machine from command line using <code>virt-install</code> python script.
  
 
* <code>[[virt-install]] --install ubuntu20.04 --memory 500 --disk size=0.2</code>
 
* <code>[[virt-install]] --install ubuntu20.04 --memory 500 --disk size=0.2</code>

Latest revision as of 11:39, 28 April 2021

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

Verify[edit]

  • 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.

Install KVM[edit]

Execute:

Verify:

It will create virbr0 and virbr0-nic interfaces and default network. 

virsh net-list
 Name      State    Autostart   Persistent
--------------------------------------------
default   active   yes         yes



brctl show
bridge name	bridge id		STP enabled	interfaces
virbr0		8000.525400d54de6	yes		virbr0-nic


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[edit]

Exceute the folowing comands:


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

  • virt-install --install ubuntu20.04 --memory 500 --disk size=0.2
  • 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[edit]

Packages[edit]

See also[edit]

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