Virtualization

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VirtualBox: Creating Backups & Clones Of Running Virtual Machines (No Downtime) With LVM Snapshots

VirtualBox: Creating Backups & Clones Of Running Virtual Machines (No Downtime) With LVM Snapshots

If you use LVM volumes for your VirtualBox VMs, you can create backups and clones of a running VM without shutting it down. This tutorial shows just that: using LVM snapshots to create backups and clones of running VirtualBox VMs without downtime.

Using RAW Devices In VirtualBox VMs

Using RAW Devices In VirtualBox VMs

Usually, VirtualBox creates its virtual machines in disk images (.vdi, .vmdk, etc.). This tutorial explains how you can use RAW devices from the host (partitions, LVM volumes, etc.) and create a VirtualBox VM in it. I will also explain how to mount a RAW device in an existing VM.

OpenVZ: Mounting Host Devices/Partitions/Directories In A Container With Bind Mounts (Debian/Ubuntu)

OpenVZ: Mounting Host Devices/Partitions/Directories In A Container With Bind Mounts (Debian/Ubuntu)

Sometimes you are in a situation where you need to mount a hard drive, partiiton or directory from the OpenVZ host inside an OpenVZ container - for example, you add a fast SSD to the host and want to put your container's MySQL databases on it to make MySQL faster. This tutorial explains how you can mount host devices/partitions/directories in an OpenVZ container with bind mounts.

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless OpenSUSE 12.1 Server

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless OpenSUSE 12.1 Server

This guide explains how you can run virtual machines with VirtualBox 4.1 on a headless OpenSUSE 12.1 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to connect to the virtual machines over a remote desktop connection, so there's no need for the VirtualBox GUI.

How To Take Screenshots Of VirtualBox VMs

How To Take Screenshots Of VirtualBox VMs

VirtualBox is a great virtualization solution, however if lacks one big feature: the ability to take screenshots of a virtual machine. Of course, you can use the host operating system's print screen feature, but this wil ltake a picture of the whole workspace, including window decorations, etc. which you will have to remove in your iage editing software which is a tedious task. This tutorial describes how you can create a little script that automatically takes a screenshot of a VirtualBox VM when you click on it; it makes use of the VirtualBox command line tool VBoxManage.

Managing A Headless VirtualBox Installation With phpvirtualbox (CentOS 6.2)

Managing A Headless VirtualBox Installation With phpvirtualbox (CentOS 6.2)

phpvirtualbox is a web-based VirtualBox front-end written in PHP that allows you to access and control remote VirtualBox instances. It tries to resemble the VirtualBox GUI as much as possible to make work with it as easy as possible. It is a nice replacement for the VirtualBox GUI if you run VirtualBox on headless servers. This tutorial explains how to install phpvirtualbox on a CentOS 6.2 server to manage a locally installed, headless VirtualBox.

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless CentOS 6.2 Server

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless CentOS 6.2 Server

This guide explains how you can run virtual machines with VirtualBox 4.1 on a headless CentOS 6.2 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to connect to the virtual machines over a remote desktop connection, so there's no need for the VirtualBox GUI.

Managing A Headless VirtualBox Installation With phpvirtualbox (Ubuntu 12.04)

Managing A Headless VirtualBox Installation With phpvirtualbox (Ubuntu 12.04)

phpvirtualbox is a web-based VirtualBox front-end written in PHP that allows you to access and control remote VirtualBox instances. It tries to resemble the VirtualBox GUI as much as possible to make work with it as easy as possible. It is a nice replacement for the VirtualBox GUI if you run VirtualBox on headless servers. This tutorial explains how to install phpvirtualbox on an Ubuntu 12.04 server to manage a locally installed, headless VirtualBox.

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless Ubuntu 12.04 Server

VBoxHeadless - Running Virtual Machines With VirtualBox 4.1 On A Headless Ubuntu 12.04 Server

This guide explains how you can run virtual machines with VirtualBox 4.1 on a headless Ubuntu 12.04 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to connect to the virtual machines over a remote desktop connection, so there's no need for the VirtualBox GUI.

Installing KVM Guests With virt-install On Ubuntu 12.04 LTS Server

Installing KVM Guests With virt-install On Ubuntu 12.04 LTS Server

Unlike virt-manager, virt-install is a command line tool that allows you to create KVM guests on a headless server. You may ask yourself: "But I can use vmbuilder to do this, why do I need virt-install?" The difference between virt-install and vmbuilder is that vmbuilder is for creating Ubuntu-based guests, whereas virt-install lets you install all kinds of operating systems (e.g. Linux, Windows, Solaris, FreeBSD, OpenBSD) and distributions in a guest, just like virt-manager. This article shows how you can use it on an Ubuntu 12.04 LTS KVM server.

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