A virtual machine is an emulation of a guest operating system, running on virtualized hardware within a host operating system.

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VirtualBox unable to start virtual machine

I am using windows 7 Ultimate with virtual Box 4.3.14 installed. I created a virtual machine but when I start the virtual machine, I get this error: Failed to open a session for the virtual machine ...
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XENSERVER: setup a routed network

I have a Ubuntu Server which supposed to be host to 3 virtual machines (Windows 7 Pro). The questions is: How do I set them so up that the other the virtual computers have the ip address in the same ...
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Parallels - OS X Does giving the VM more RAM or more Video Memory/CPUs limit the mac?

I installed parallels not too long ago and I am not sure what to set as the user settings.. My question is if I give the VM more ram does it limit my mac's ram when I run the VM? Same question with ...
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Export Vagrant VM with all it's synced folders

Let's saying I'm working on a vagrant VM named foo and it sits on my host machine at ~/foo. In my scenario, foo uses VirtualBox as the provider and is using synced folders to configure and provide ...
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17 views

Compressing an OS after some slight changes has yielded massively different results - why?

I am using SUSE Linux on a Virtual Machine through VMWare Workstation. This morning, I zipped up a copy of the folder containing my VM (.vmx, .vmdk, .vmem, single snapshot and all) and sent it to my ...
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How do I see the folder thumbnail view in VMWAre Workstation 10 while viewing a remote ESXI server

So when using VMware Workstation 10 on your local computer there is a grid thumbnail view where you can see all your VMs displayed (live update small thumbnails) on like a 9*5 grid or something. Yet ...
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9 views

Specifically, what differs between running the same virtualbox on different host OSes

I was always under the impression that a Guest OS running under VirtualBox would be basically unable to determine the Host OS/Specifications. Today, I tried to install Mac OSX on VirtualBox. First, I ...
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7 views

Message queue doesn't exists any more after reboot/shutdown of the virtual machine (Ubuntu)

I'm working on a simple multithread client/server program in C using native message queue of unix to send messages from one client to another. It works fine, but my problem is that after a reboot or ...
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20 views

how to set hyper-v virtual machine connection permissions

I have installed Hyper-v on my Win 8.1 pro computer, and have a virtual machine running. I can access the machine and can see it running in the Hyper-v manager, and can launch a connection to it ...
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11 views

VMware: Shared VM on portable disk, multiple .vmx files

Using VMware, I want to use a VM on two separate development machines and carry it around on an USB drive. I found this answer, but it's not quite what I'm looking for. I think I cannot just share ...
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4 views

Trigger a host command on VirtualBox guest shutdown

Superusers-- Doing some webdev using a VM. Guest is Ubuntu Precise, host is Windows 8.1, VirtualBox 3.4. My dream scenario: I gracefully shut down the Ubuntu guest. Windows detects the shutdown ...
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VirtualBox image not mounting on Windows 8

I am trying to compile Android kernel from source, and I have code in Windows 8 (latest kitkat- 24 GB) and Oracle VirtualBox with Ubuntu 14.04 (Trusty Tahr) installed. Since the source ...
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14 views

Citrix Xen Server VDI does not exist after VM reboots

I installed Citrix Xen Server on machine and Xen Center console on my windows box. I made some virtual machines on the server but for some reason when I reboot the VM, it would become unavailable. I ...
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17 views

Can I upgrade parent VM and have all linked clones updated too?

Is there any VM and OS combination that can support this scenario? I want to create a base OS image and lots of child linked clone images that share the parent's disk. This way I'm not duplicating the ...
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24 views

Sharing connection between Linux Mint 17 and Porteus RC 3.0

How can I connect to Porteus RC 3.0 VM guest via Mint 17 Quiana 64 bit as host? I am trying to share folders between VM and host, but I am always getting modprobe vbox error. This is why I am trying ...
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25 views

can't share internet connection with virtual machine

I've received a cloud test-server and i'm trying to test virtualization (i dont have any experience with virtualization whatsoever) ... I have a windows server 2012 standard, and have a vm running. ...
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1answer
11 views

Show Aptana Studio website/code preview in Virtual Machine's browser

Using VirtualBox on a Windows 7 host I have set up a Windows 7 guest and made several snapshots/linked clones with each having the next version of IE on them starting at 8 going up to 11. Yes I know ...
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9 views

How to add an existing encrypted vHDD to a new virtual machine?

I am using VMware workstation with encrypted virtual hdd-s. I tried to use one of the vmdk files as an hdd on another virtual machine, but when I try to add it as an existing disk, I get the following ...
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33 views

PC to virtual machine [duplicate]

Currently I'm moving from old PC to new one. I have windows 7 installed. I'm planning throw away old PC, but before that I would like to have possibility to run old PC operating system just in case I ...
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7 views

Trafic of a VM through VPN (Viscosity)

I'm on windows 7 and I wanna use VirtualBox with a ubuntu inside. Let say that I use (as a client side) viscosity as tun on the host (win 7). How may I make the VM traffic (and only this traffic) ...
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13 views

Can I get to the host TSC counter from a guest using KVM?

[posting the question from http://stackoverflow.com/questions/25058729/can-i-get-to-the-host-tsc-counter-from-a-guest-using-kvm here. I was not the original poster, but I do have exactly the same ...
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14 views

How to connect from a VirtualBox guest (XP) to a running JBoss server on the host?

First off, I'll say I'm not 100% certain this is the correct location for this question. I was contemplating stackoverflow, but I don't think there's much in the way of code that has to do with this: ...
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33 views

What are the differences between Cloud Virtual Machines and Virtual Machines on a computer?

Google has a service that allows you to create Virtual Machine on his Cloud. There are many Virtual Machine Types like Browsers (StackBrowsers), Mobile Phone, Operating Systems. You can use the Cloud ...
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Mac Users - Bootcamp, VirtualBox, or something else to use Visual Studio and SQL Management Studio?

I'm taking a computer science class that requires students to use Visual Studio and SQL Management Studio for programming assignments. I have been using Macbook Pro, so i'm considering getting either ...
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Port forwarding remote traffic through physical router to go through pfsense VM, then to centos VM web server

I hope this makes sense, I'm completely self taught and planning on going for formal instruction. As I understand this is possible, however I haven't been able to find definitive answers to my ...
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23 views

VirtualBox and Websockets

I am using Virtualbox with Linux host and Windows guest. When I try to use websites that makes use of websockets it's not working properly (not getting messages). I believe this can be fixed with ...
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27 views

No VT-X support for Intel i7-4702MQ as required by a virtual machine ? How to enable?

I've recently bought a brand new machine from Clevo. It has the i7-4702MQ CPU from Intel and should be used for development, where sometimes a virtual machine is necessary. However, I can't seem to ...
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17 views

Connect to VM to VPN through another VPN

My current setup is: My work desktop connects to our corporate VPN. I have a VM (Linux Mint) in VirtualBox that I am attempting to connect to another VPN (Private Internet Access). The VM in ...
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24 views

Multiple Instances of 1 Program

The project at hand that I am having issues with is that I need to run a set of program models on one computer. Each model has different file configurations, but in the C:\ drive the folders are named ...
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88 views

Centos running very slow in Virtualbox

I am running Centos 7 in Virtualbox 4.3.14. The VM is configured with 2 CPUs 4 GB RAM 3.10.0-123.4.4.el7.x86_64 kernel The host machine is running Windows 7 Pro SP1 64-bit Intel i7-4790 CPU, ...
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38 views

How is a wireless network presented to an operating system?

I am wondering how is a wireless network presented to an operating system. If I'm not mistaken, Wi-Fi (802.11) is only the Physical layer of the OSI model. This means that, one layer up, we're ...
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29 views

Azure Virtual 1280 x 800 and can't change

My Azure virtual is 1280 x 800, and on my laptop when I RDP in, it's really cramped on space as my apps are blown up really large. I don't know why this happened all of a sudden; the only difference ...
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22 views

Exposing an USB device directly to a Virtualbox guest

I have an virtualBox VM with a windows guest system (Windows XP 32Bit). The Host is also a Windows (Windows 7 64Bit). Normally I just want to use known usb devices (which are known by my host and ...
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3k views

Virtual Box error after creating new VM

I have followed several tutorials thinking I was doing something wrong while installing virtual machines using VirtualBox. It is important to say that I'm running Virtual Box on Windows 8.1 The ...
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1answer
33 views

How do I access an IIS web server on a virtualbox from the network of host machine

I've a site running on IIS on a Windows 8 virtual machine. http://localhost/RTStreamer/Ticker.html How do I access that site from outside the host machine? The host machine ip is 168.192.42.1 I've ...
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1answer
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Replacing original VDI file with the Snap Shot made from it

I have worked with Virtualbox extensively for the first time. I made a snapshot of an Ubuntu image I was working with. I have been experimenting with the VM for the last two months, and since things ...
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22 views

How do I virtualize my windows drive in ubuntu?

I am running a dual boot system. In parallels on my mac, I am able to view my bootcamp partition live in a virtual machine. Is there a tool to do this in ubuntu?
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Kubuntu guest on Windows 8.1 Hyper-V won't shut down completely

I've got a Windows 8.1 Professional laptop with Hyper-V installed, and a Kubuntu 14.04 Desktop VM. When I shutdown the Kubuntu VM, most of the time it gets to the logo screen, and just sits there. ...
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resize console font in virt-manager

How do I resize/change the font used by virt-manager in the console window? Searching the intarwebs or the documentation does not reveal any information related to changing the console font size.
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Why doesn't windows properly report the RAM being used by VirtualBox?

So, out of curiosity I decided to take a look at my RAM usage with my windows 7 VM (3 GB RAM allocated) running. I was... surprised to see the results, and I'm wondering why these results are the way ...
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16 views

Read Leap Motion tracking data from guest VM on host machine using WebSockets and VirtualBox

Ok, so I am trying to get the tracking data from my Leap Motion from inside a Virtual Machine and use the tracking data on my host machine. Guest OS: Ubuntu, using VirtualBox Host OS: Windows 8.1 I ...
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Install VMPlayer on Ubuntu Live USB

I want to install VMPlayer or other virtualization software on a Ubuntu Live USB. How can I edit the image file so can write new image file to USB and can boot live usb image , and run VMPlayer ...
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66 views

How to use Virtual Box with a Disk image created with Norton Ghost?

I was given a file with "sv2i" extension and a couple of "v2i" files. According to my search, it is a disk image created with Norton Ghost. I converted the sv2i file to a vmdk file, which apparently ...
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1answer
23 views

Unable to connect to internet with VirtualBox?

Earlier, I was using multiple instances of Virtual Machines running Linux Ubuntu 14.04 on VirtualBox. They were working fine, with internet connectivity, etc. However, I then created a new Virtual ...
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40 views

Not able to acces internet in an Ubuntu Guest in a Windows host using Oracle VIrtual Box

My Machine is a WIndows 7 enterprise edition. The network in my institution is setup in such a way that Mac Addesses have to be registered in the system to work. I installed the plain and vanilla ...
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grub rescue moved folder out of root

I made a really silly sudo mv /* /some_folder move command on my remote server vm ubuntu 12.04 that moved my boot folder to /home/.../somefolder/boot I can access this folder via a ...
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1answer
28 views

Can I run my desktop on a bare-metal VM layer to swap between operating systems?

I'm running CentOS as my primary desktop, but I need to be able to use Windows and Ubuntu from time to time to test things on those. As I don't have any extra hardware immediately available, I could ...
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Can Intel's VT-x be virtualized?

My CPU doesn't support VT-x. Can this technology be virtualized? I mean in a guest machine. Like VMware Workstation or Oracle Virtual Box. Or do you have to buy a new CPU that supports it?
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63 views

Can I install Mac OS in windows through VMware workstation?

Can I install Mac OS in windows through VMware workstation ? I have VMware workstation software. I want to install Mac OS in Windows 7. Can I?
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24 views

.DSK to .vdi or other Virtual box supported format

Is there any way to convert dsk files to any usable format for virtual box? Is this type of conversion possible or not?