OdenData

KVM Install and Use

by Mark Nielsen
Copyright 2022

For most of this document I will be just doing the steps. Refer to the links for detail.

1. Links
2. Setup and Install
3. Configure KVM and web interface
4. Adding an Linux images
5. Making a server
6. Snapshotting a server
7. Other stuff

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Links

• https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-20-04
• https://ostechnix.com/manage-kvm-virtual-machines-using-cockpit-web-console/
• https://www.linux-kvm.org/page/Management_Tools
• https://www.tightvnc.com/download.php
• https://seanthegeek.net/234/graphical-linux-applications-bash-ubuntu-windows/
• https://help.ubuntu.com/community/KVM/Installation
• https://linuxmint.com/download_all.php

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Setup and Install

So I have docker installed on Windows. It it not ideal. I suspect certain things I want to di like running service in a docker installation requires mounting reead only partition. I can probably do this through NFS, but I prefer to be able to mount those directories. There are other reasons why Docker on Linux seems to be easier to manage.

Also, I suspect I want to use KVM installations because Docker isn't designed to be a real operating system, but meant to run specific programs.

I want to run the GUI programs, so I need to run XWindows on the laptop and have it go through ssh and appear on Windoze. Follow the steps in the first link under Links. I opted for less security. I just run vncserver on Linux and used a vnc client on windows.

On Linux

• Run: apt install xfce4 xfce4-goodies
• Run: apt install tightvncserver
• RUn vncserver and it may ask for a password: vncserver

On Windoze:

• Download 64 but version from https://www.tightvnc.com/download.php
• Install the client. Requires java, so I installed java.
• I ran tightvnc-jviewer.jar under nossh directory, enterd in my ipadress192.168.1.100 and the port 5901.
• Then it asked for the password I set when running vncserver on linux, and it was fine.
• I wasn't concerned about security that much because I behind a private network where you have to connect to the private network.

Here is the pre-setup

• Sofware:

  	    apt-get -y  install cpu-checker   

• Run "egrep -c '(vmx|svm)' /proc/cpuinfo" and two issues. The answer has to be more than 0 and hardware virutationization must be turned on in the hardware. Mine was 4.
• Run: "kvm-ok" and I got the output

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

• If it looks install (The packages depend on your version of ubuntu):

  	    apt-get -y install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils
              apt-get -y  install virt-manager
  	    apt-get -y install bridge-utils
  	  

• adduser mark libvirt ; /home/mark# adduser mark kvm

On Linux running through VNC

• virt-manager
• apt-get install ubuntu-vm-builder

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Configure KVM and web interface

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