Virtual machines (VMs) are computer systems-within-computers. Each VM runs its own operating system and simulated hardware, providing it with autonomy from its host machine and offering strong isolation for resource intensive applications.
Ubuntu Server is an emerging enterprise virtualization option that offers many benefits to businesses. In this article we’ll look at how to set it up as a KVM virtual machine host host and host.
How to install ubuntu
Launch VMware Workstation Player and choose Create a New Virtual Machine on its home page. In the New Virtual Machine Wizard, choose Linux as the Operating System before clicking Next.
Enter a name for your new Ubuntu virtual machine and choose its file location (ideally it should match that of your home directory). Also make sure that the “Erase Disk and Install Ubuntu” box is checked as this will ensure all available space on disk is used by Ubuntu without impacting other system files on your host computer.
Once your virtual machine is created, select and start it. It will boot from Ubuntu’s installer image, taking several minutes for it to complete installation before prompting you to choose your keyboard layout.
Configuring the network
After you complete the initial setup process, Ubuntu will take you through a brief series of configuration screens to determine your keyboard layout, scope of updates applied during install and create username and password login information.
If you intend to use virtual machines on your network, a bridged mode Ethernet adapter must first be set up. This will allow them to receive traffic from devices other than just their host computer; their network will appear as separate physical entities from the host’s.
Alternately, you can set up your VM so it is only accessible from its host computer – this method is great for web development as it requires less complex setup. To accomplish this task, change the guest properties /VirtualBox/GuestAdditions/SharedFolders/MountDir and /VirtualBox/GuestAdditions/SharedFolders/MountPrefix with values other than “sf_”. This will change the prefix of all mapped folders within VM to something other than “sf_”.
Configuring the storage
Virtualization has quickly become a staple of modern computing, providing many benefits including improved hardware utilization and cost savings. Ubuntu Server is an excellent platform for virtualization thanks to its stable platform and support for various virtualization tools – this tutorial will show how to set up KVM virtual machine hosts with Ubuntu Server.
Once you have installed all of the required packages, install virt-manager – a graphical tool used for creating and managing virtual machines – then add users to the libvirt group so they can create and start virtual machines themselves.
The installer will prompt you to select a keyboard type, determine the scope of installation, and designate a VM name. After doing so, you can configure CPU and RAM resources as well as allocating disk space for it. After which, it will install OS from ISO file you provided; for improved performance consider increasing processor count.
Configuring the disk
As soon as a virtual machine (VM) starts up, it will go through a set of setup screens. Here you will need to confirm what kind of keyboard is being used and if all recent updates should be applied during installation; additionally a username and password need to be selected so the installer can install Ubuntu onto its hard disk drive, erasing any existing content in its way.
Once the VM is up and running, click the computer icon in the top-left corner to open a new window and choose “Local install media.” Afterward, click Forward.
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