Virtualization is the process of using software to emulate an entire computer, in which "guest" operating systems can run.

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Connect to the host machine from a VirtualBox guest OS?

I'd essentially like to access my host computer from the guest in VirtualBox. Is there an IP address given for my host which I can use from the guest? Are there extra steps required to set this up? ...
108
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4answers
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VirtualBox shared clipboard?

Where is the configuration option for sharing clipboards (copy & paste) between the host OS and the guest OS?
95
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5answers
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What's the recommended way to move a VirtualBox VM to another computer?

I use VirtualBox 4.1.x on my Ubuntu machine and I’ve set up several virtual machines. Since there are several ways one can move a virtual machine in VirtualBox to another computer, I was wondering ...
82
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14answers
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Is it possible to run Mac OS X in a virtual machine?

I'd love to be able to try Mac OS X in a VM, preferable on something shiny and new like KVM for linux. I'm a Linux and Windows person, but I would like to try out Mac OS X without ...
67
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6answers
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VirtualBox guest OS accessing local server on host OS

On my Ubuntu host I have my local webserver. I installed VirtualBox and Debian as a guest. I would like the Debian guest to be able to hit my webserver running on my Ubuntu host (for example, I just ...
65
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8answers
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Why Virtual Box won't give me option to create 64 bits guests?

My host is x64 bits Windows 8.1. I downloaded the latest Virtual Box (4.3) and I'm trying to create a VM with a 64 bits Ubuntu OS (ubuntu-12.04.3-desktop-amd64). When I go to New VM wizard, it ...
63
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7answers
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Can you run one virtual machine inside another?

Is it possible to, say, run VirtualBox on Windows 7 with a Linux guest, and inside that Linux machine run Bochs? The reason is that I'm interested in starting OS development, and I've found that all ...
61
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6answers
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Can a hypervisor like VirtualBox be used to launch a virtualized OS which is also directly bootable?

This question is rather theoretical: Suppose I have a PC with two different OS on two different partitions: OS1 on sda1 and OS2 on sda2. Is it somehow possible to set up a program like VMWare or ...
49
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6answers
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How does Windows 7 licensing work for running the OS as Virtual Machines?

I plan on buying Windows 7 Ultimate Edition to run on an old Pentium 4. I also want to run Windows 7 virtual machines inside Windows 7. My question is two fold: Do I need a license for each Virtual ...
33
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6answers
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Why is there so much hype about Virtualization these days?

Virtual machine, Virtual server, Virtual disk, etc...... It doesn't make much sense to me why someone would want to make their things "virtual" when basically that adds another layer to everything ...
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18answers
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Vagrant ssh fails with VirtualBox

vagrant up fails when it gets to the ssh part: myterminal$ vagrant up [default] VM already created. Booting if its not already running... [default] Running any VM customizations... [default] Clearing ...
27
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2answers
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How to get VirtualBox VMs to use host's DNS?

I use VirtualBox for my VMs. My office network setup is wireless, i.e. I connect to my company's WiFi network, which has a local DNS to resolve local names (such as something.mycompany.com going to ...
26
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6answers
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Virtual Box - not filling entire screen

I am new to VirtualBox and am trying to set up an instance of Windows 7 64. I have the virtual machine instance running with Windows 7 now installed, but it only fills up a small portion of my ...
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2answers
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Hyper-V appears to runs on top of the host OS, so why is it considered a native (type-1) hypervisor?

Wikipedia says: Hyper-V, codenamed Viridian[5] and formerly known as Windows Server Virtualization, is a native hypervisor...* Wikipedia itself says that a native hypervisor is type-1 ...
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5answers
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VirtualBox from an existing partition

I installed VirtualBox on my Ubuntu Hardy Heron installation, and I would like to use it to virtualize Windows for those rare occasions that I actually need to do something there. Unfortunately, I ...
23
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2answers
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Use physical harddisk in Virtual Box

Using Virtual Box, how can I install an OS to a secondary, physical disk, and boot it in both (at separate times) Virtual Box, and as a typical secondary OS install?
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VirtualBox: using physical partition as virtual drive

Background: I am using VirtualBox installed on Windows 7. From within VirtualBox I am using Xubuntu as a virtual OS. The reason I chose this approach is so that I don't have to keep turning off ...
21
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3answers
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Intel VT-x disappeared after upgrading to Windows 8

I've upgraded to Windows 8 some weeks ago (MSDNAA!) and today, while I was trying to run a VM, I've noticed that VT-x is disabled. Now, Hyper-V works without problems, as I've tried emulating Win7 ...
21
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3answers
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VT-x/AMD-V hardware acceleration is not available on your system

While installing an OS, I am getting an error similar to: VT-x/AMD-V hardware acceleration is not available on your system. Certain guests (e.g. OS/2 and QNX) require this feature and will fail to ...
20
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2answers
5k views

How can the BIOS block virtualization?

I'm starting to work with Docker and after a few hours of trying to make it work, I found out that my BIOS was blocking it and that I needed to adjust the BIOS settings. I was told that the BIOS is ...
19
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6answers
6k views

What features should I look for in a laptop for virtualization-heavy workloads?

I do most of my development in VMware Workstation (version 7 at the moment). Unfortunately, on my laptop with 4 GB of RAM, an OCZ Vertex 2 240 GB, and a Core 2 Duo T9550 (2.66 GHz) does ...
18
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7answers
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Dual-boot or virtual machine for Linux programmer that does some Visual Studio development?

The scenario: I am a freelance software developer that mostly develop on Linux (Python, MySQL, MongoDB etc.) My work computer is a Lenovo laptop w/ a i7 processor and 8GB RAM. Big HD + 128 GB SSD. ...
18
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10answers
735 views

Parallels vs Vmware Fusion for running Windows on Mac OS X

Has anyone used both of these? Is one clearly superior to the other? I notice they are the same price. Any pros and cons?
18
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3answers
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How to run Mac OS X within Windows Virtual PC? [closed]

The short answer is: You Can't. It seems to be a popular question as to whether you can install/run Mac OS X under virtualization within Windows. However, most of the questions really answer the ...
18
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2answers
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What are the differences between OVF-Version 0.9, 1.0 and 2.0?

I have Virtualbox 4.3 and want to export different VMs because I'm recover my computer. When I want to export a VM I can choose between OVF-Format-Version 0.9; 1.0; 2.0 But what are the differences ...
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How does virtualizing differ from emulation, in terms of structure?

Someone told me that a virtualizing program like VirtualBox does not work like an emulator does in the sense that it doesn't emulate registers and uses the actual ones for the virtualized data that ...
17
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6answers
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Which virtual machine software is preferable for running Windows 8 Developer Preview? [closed]

I want to preview Windows 8 and decided to install it on a virtual machine as I don't want to format an existing partition. Installing Windows 8 by mounting the .iso results in the primary ...
17
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4answers
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Emulate fake monitor on Windows 7?

Is there a way to emulate a monitor on Windows 7? I have one physical monitor, and I want Windows to think I have two. I actually don't care whether the second monitor is visible anywhere, or if ...
16
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3answers
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Does Windows 7's XP mode require hardware virtualization? What are the requirements to run XP mode?

Does Windows 7's XP mode require hardware virtualization? This old post indicates hardware virtualization is required, some articles say it no longer is. Do I need a CPU with hardware ...
16
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2answers
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Could I access a blocked website via a virtual machine if the host OS has the web address blocked in its hosts file?

I was going through this Net Nanny article that mentioned about the various ways its web filter could be bypassed by kids. Among other methods, I saw this: One way that teens can get around the ...
16
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5answers
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Bare-metal virtualisation for the desktop

What knowledge exists about bare-metal virtualisation products? I'm interested in building a new desktop machine for home. I've been looking at the Intel Quad Core processors and I'd like to put 8 GB ...
15
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MAC addresses for virtual machines

As I understand it, MAC addresses are assigned to every physical device by the manufacturer. By extension, how are MAC addresses assigned to virtual machines - for example if I create a new virtual ...
15
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Is it possible to set up a bare-metal hypervisor on my laptop?

Say I had a Core i7 Laptop with 16GB of RAM and a 750gb drive. Is there a mechanism where I can partition the HD into a Linux, Windows, OS X, Shared Data, Hypervisor setup where I boot a small ...
14
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3answers
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How to start Windows XP in Safe Mode when its a VirtualBox guest in a Mac OS X host?

I've tried tapping F8 as it boots up, but I just get the normal logon screen. I'm using a Mac Mini with an Apple keyboard, do I need to do something special to get it to recognise F8? I'm trying to ...
14
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5answers
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Where can I find ready-to-use virtual machines?

I'm new to virtualization, and I'm trying to create a couple of boxes for testing the software I develop (php) in diferent enviroments. I know php is portable, but sometimes it breaks because of ...
14
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4answers
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Is it possible to create Portable VM?

I want to know that is it possible to create a fully portable virtual machine using any of the VMWare like products? My objective is to create a virtual machine (XP as guest OS), install some app in ...
13
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5answers
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Are there any open source app virtualization solutions for Windows [closed]

I am looking for open source solutions that provide application virtualization for Windows! In other words an open source to ThinApp from VMWare. I have found several commercial options, but nothing ...
13
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4answers
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This virtual machine is configured for 64-bit guest operating systems. However, 64-bit operation is not possible

I have windows 7 64x professional Laptop , then i download a new VM on it , but when i try to mount an ISO imag for windows server 2008 i got the following error :_ **This virtual machine is ...
12
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3answers
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VirtualBox - XP guest does not see multiple cores/multiple processors

Environment: Host OS: Win7 Pro 64bit Guest OS: WinXP 32bit VirtualBox version: 4.1.4r74291 Processor: Intel Core i7 2630QM with virtualization enabled The Problem: I need the guest system to use ...
12
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2answers
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Proper way for changing MAC address in a linux VM?

I tried to change the MAC address in a ubuntu VM (virtualbox), but after that it threw lots of errors during boot, and then I had no internet connection. Then I saw that the interface was renamed to ...
12
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3answers
40k views

Any Way to run Mac OSX software under Windows?

I know that you cannot run MacOSX within a virtual machine, but I am curious if there is something similar to WINE that emulates MacOSX enough to allow running some MacOSX software under Windows. ...
12
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3answers
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Difference between Virtual Machine and a Hypervisor

If you Google the term "hypervisor" you get endless definitions that state a hypervisor is also known as either a virtual machine monitor or a virtual machine manager, and that it is a form of ...
12
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2answers
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Are there any benchmarks showing difference between hardware virtualisation enabled/disabled?

I have a 13" sub-laptop/large-netbook, it has an AMD Athlon Neo X2 L335, and I chose this one because it supports hardware virtualisation. In the end, I hardly do any virtualisation on it, however, ...
11
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10answers
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Can a single OS installation on an SSD be shared between a desktop and a laptop?

I recently purchased an SSD and was wondering if there was an Operating System that allows you to swap between two different machines essentially sharing one partition? Perhaps multiple hardware ...
11
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2answers
30k views

Can't install Guest Additions using VirtualBox, Ubuntu guest OS, Win7 host OS

I'm new to VirtualBox and Linux. I've set up VirtualBox 4.0.4 on Windows 7. Successfully created a virtual machine running Ubuntu server 10.10 64 bit. I'm trying to set up Shared Folders. Prerequisite ...
11
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1answer
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Virtualized OSX can't see iPhone device

I've been running a VM with OSX for a while now while developing for iOS using an iPhone device. Everything was working fine until the update to El Capitan. Since the update, the iPhone is no longer ...
11
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5answers
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Resize a VM hard-drive (virtualbox)

Is there a way to resize a VM hard drive? I am using virtualbox and I have a VM that has run out of space, looked into the settings but it seems I may have to create another partition. I thought ...
11
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3answers
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Does Windows 7 Support Hyper-V?

Now that Windows 7 Enterprise is available for VLK Users to download, I would like to check it out. The only thing holding me back is that I am an application developer (currently developing on a ...
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3answers
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Is there free VM software for Mac? [closed]

I've seen Parallels running Windows and it's pretty darn good. But before I go and spend over $100 dollars, are there any free VM apps on the Mac that are up to speed?
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Is it possible to install Windows 10 as the host OS and as one or several guest(s)?

With a single license of Windows 10, is it possible to install the OS at the same time as: The OS of the host machine (the non-virtual machine) The OS of one or several guest system(s) In such ...