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

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Minimize VirtualBox Hard Drive disk

I have Ubuntu Server 10.04 TLS installed on a Virtual Machine in a VirtualBox. The size of the Hard Drive is dynamic growing hard drive and the maximum is 32GB. At the beginning i had 4GB on the Hard ...
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emulator and virtual machine

I was wondering what differences and relations are between emulator and virtual machine? Is one a special kind of the other, and what are some other kinds in the other? I don't quite understand about ...
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Are virtual machines safe? [duplicate]

Possible Duplicate: Virtual Machine and Virus I am running a virtual machine on VirtualBox. Assuming that I have no shared folders between the host and guest OS, is the guest OS completely ...
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vpn through vpn

The target VPN server I want to connect to allows connections only from one IP address. When I am at my office (the network public IP is trusted on the VPN server) everything is OK, but I figured ...
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653 views

Is it possible to run several virtual machines each with independent mouse+keyboard on a single PC? [duplicate]

My goal is to instead of buying 4 separate basic PCs (plus the obvious peripherals), buy just one fast PC and the peripherals. I'm wondering if I can use a more powerful computer, say, one with core ...
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323 views

Virtual PC with Multi Monitors

I have recently intalled Virtual PC and was wondering if it possible to make use of both of my monitors with it. I have managed to get a pseudo multi screen effect by connecting using Remote Desktop ...
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Virtualized Screen Resolution

I have a 64 bit Ubuntu 9.10 workstation with two virtualized guest OSes using KVM/QEMU. Also both 64-bit. One is Fedora 12 the other is beta of Ubuntu 10.04. The problem is that I would like to use ...
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How to give virtual machine access to the Internet, but block from LAN?

I am setting up a virtual machine using Microsoft Virtual PC in Windows 7. The VM will run a Windows XP. I want to set up a public-facing server in it for web pages, subversion and other things, and ...
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Running a single virtual machine

How would you configure a computer to run a single virtual machine? Keeping it virtual is important to: Create snapshots Achieve hardware independence The server in question is a build server ...
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Virtual Box ssh not working on Virtual Box Ubuntu machine

I have Ubuntu 12.10 installed, and 12.04 Server set up in my virtual machine. My VM has internet access, and I can ping it from my host. ping symfony.dev # points to 192.168.56.101, and successful ...
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Some VMWare images take long to resume from suspension as compare to others

I am using VMWare Workstation 7.x. I have a few Windows Server 2003 images which I use regularly. They all started with the same image and were created by cloning. There is some difference on the ...
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CPU modes and recursive virtualisation

I'm trying to get my head around virtualisation and hypervisors. So the top OS, say Linux, runs in ring 0, with userspace programmes running in ring 3. The user boots up VMware, with Linux running ...
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How to Maintain a small differential Virtualbox hard drive

I am trying to use a virtualbox hard drive over several computers using dropbox (a popular cloud tool) synchronization. I assume no two machines will open the same drive at the same time. To reduce ...
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Run a dual-boot operative system virtually

I have a dual-boot system with Windows 7 and Ubuntu 11.10 installed on separate partitions, according to the following partitioning scheme: 1. MBR for windows 2. Windows system partition (NTFS) - ...
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567 views

OS 10.7 Lion a resource hog? Help on RAM issues

I just purchased a new Macbook Pro to replace my aging 2006 model. I am running Lion with the latest updates, I have a 2ghz i7 processor with 4gigs of RAM. I need this machine to do .Net ...
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971 views

Building a storage and vpn server on the cheap

I am trying to figure out the best server configuration for the following: Low power (I want to plug the server in and forget about it) High redundancy of data (I don't want to loose my music and ...
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200 views

Trouble with Ubuntu on Oracle VM

I'm running Ubuntu on an Oracle VirtualBox virtual machine. I clicked the "install Ubuntu" button, and it took me through a wizard. I am currently on the following step: Unfortunately, the ...
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Is it possible to install 2 different versions of an application at the same time

Won't it have any conflicts? Because I am using an old version of virtual box and I want to try the newest version but I haven't still completed my download in the virtual ose.
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How to create 2, or 3, or 4 Virtual PC with Win XP on it on Windows 7's Virtual PC?

The default Windows Virtual PC installation sets up one Virtual PC with Win XP on it. I wonder how do we set up 2 or 3 or 4 machines, all with XP on it? There seems to be a way, but it is not ...
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VirtualBox crashing with Windows 8 guest & Guest Additions

I'm trying to install the Guest Additions for Windows 8 x64 running in VirtualBox 4.2.4 OSE on a Linux x64 host. The Guest Additions installer will, every time, crash the entire VM, bringing it ...
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How to hide from a program that it is running on a virtual machine?

Some software contains tests to see if they are running on a virtual machine. It's very unpleasant to see alert messages such as "Sorry, this application cannot run under a Virtual Machine." and have ...
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VirtualBox shared folder write permission - Ubuntu 12.04

I'm using the following command to mount my folder in VirtualBox: sudo \mount -t vboxsf -o rw -o uid=1000 -o gid=1000 Dropbox ~/Dropbox/ However, the folder is read-only. I re-installed Guest ...
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How to route traffic from VM (Parallels) over an Open VPN connection on the host (OS X)

Scenario: I have a Mac running Lion that is connected to an OpenVPN server I have a Windows XP VM (running on parallels, but I don't think this is important) I want to be able to route traffic from ...
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VirtualBox freezes when using anything but NAT

I have an Ubuntu(10.04.3 64bit server) guest VM on an ubuntu(11.04 64bit desktop) host. The guest VM defaulted to the first network adapter as NAT. Now I want to enable bridged mode, but every other ...
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841 views

firewire emulation for virtual machines

As is well known by people that have the joy of having a FireWire professional audio interface, virtual machines (VirtualBox, VmWare, etc.) cannot access FireWire devices. I'm wondering if there are ...
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303 views

Home Server/NAS solution

I'm waiting to build a scalable server that I can shove VMs onto with a NAS application as well. These are my requirement that I have come up with so far (in descending order of priority) Reliable ...
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Is it possible to have a bootable Ubuntu partition that you can also access via a VM (ala Windows/Boot Camp/VMware or Parallels on Mac)?

I'm hoping to do something similar to the way you can install Windows on a Mac's 'Boot Camp' partition, but then you can also open that partition as a Virtual Machine using Parallels or VMware from ...
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VMware Workstation “Recording/Replaying VM activity” feature

I have seen some documentation about a "Record/Replay VM activity" feature in VMware workstation 6 and 7 here : http://cto.vmware.com/the-amazing-vm-recordreplay-feature-in-vmware-workstation-6/ ...
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795 views

Cannot create external switch on Hyper-V

I am getting the following error when creating an external switch on Hyper-V: I am running Windows 8.1 x64. My switch settings are as follows: Event viewer gives me the following errors in ...
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what is the fastest way of sharing files between VMs?

I've got four guest OS (2 Window XP, 1 Ubuntu VM, 1 FreeNAS) with guest additions installed on each, hosted on an Ubuntu server (12.10) using a headless VirtualBox (4.2.6r82870) setup. Currently, I'm ...
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Can't take control of USB drive on VMware

I'm running VMWare Workstation on Windows 7 x86-64, and a Mac OSX 10.8 inside the VM. Whenever I try to connect my USB drive to the Mac OSX guest, it just doesn't gets recognized, i've already tried ...
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334 views

Windows 2000 under Windows 7 Virtual PC not working correctly

I have just moved my Windows 2000 Virtual PCs from Vista to Windows 7 Professional (64-bit). The machines work to a point but I have found some problems: drive mapping does not seem to work any ...
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Start specific virtual machine in VMware in Unity mode on host startup

When I boot up the host computer I'd like the VM to boot up too and enter unity mode. Both OS's are Windows 7. How can I do this?
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Where does the Filezila and two user accounts come from?

Good day to you all. I suspect, with almost undeniable certainty, that the VirtualXP is at fault. For the past 6 months--surely longer--I have been coming back to my office to find that there are ...
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Mac OS X Server 10.6.6 “disables” CPU in VMware Fusion

I installed Mac OS X Server 10.6.0 in VMWare Fusion the other night and it worked perfectly, until I ran Software Update. I upgraded to 10.6.6 through the combo updater, and now when I start the VM it ...
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Move VirtualBox VM to another host OS

I have created a VirtualBox VM Windows Server 2008 (32 bit version) on my Windows XP host. After that, I copied the VM on another host machine (also Windows XP), and it still worked fine. But when I ...
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Why is PC-Mac emulation a one way street?

I know it's possible to run a PC emulator and virtual machine on a Mac, but why is it you can't emulate a Mac on the PC? Both run on Intel chips these days. I ask because I'd like to try my hand at ...
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How to recover Virtual Machines in Virtualbox?

For some reason, all of a sudden, all virtual machines are gone from the User Interface in virtual box. I suspect CCleaner has something to do with it, but that's not the point. Both the virtual ...
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apt-get behind proxy on VirtualBox Ubuntu

how can I set apt-get to work behind proxy?
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Which virtual machines exist for Linux besides VirtualBox? [closed]

What virtual machine software is there for Linux besides VirtualBox?
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Virtual Machine vs. Dual Boot?

Similar to this question, I have a dilemma. I own a computer with Windows 8 on it, and that is not very convenient, because some games that I want to run crash on Windows 8. Therefore, I would like ...
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Should I run Windows Virtual Machines on a Windows or Linux host?

I have currently have a PC with 16GB of RAM. I will be running multiple virtual machines using VirtualBox. Would I get the best performance from running the VMs on a Linux host, or a Windows host? ...
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Can I run a single Mac application inside a virtual machine?

How can I run a single Mac app inside a virtual machine without installing Mac OS X?
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What causes a Virtual PC “virtual machine” to be locked?

I'm using Virtual PC on Windows 7 and have periodically gotten this error when trying to shut down: Cannot shutdown a locked virtual machine. Google search on "locked virtual machine" Virtual PC ...
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If Windows XP has Virtual PC 2007 (free) and Windows 7 has Windows Virtual PC (free), what about for Vista?

Windows XP has a free downloadable Virtual PC 2007 form Microsoft's website. And Windows 7 has Windows Virtual PC. (Are they supposed to work the same on a .vhd file?) What about Vista? I ran ...
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I've got virtualbox, now what?

I've just downloaded and installed virtualbox so I can run linux on my windows computer. Where do I get the "image of a CD-ROM in an ISO file"?
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Virtual PC versus VirtualBox

Which free virtualization software do you guys prefer? I have used Virtual PC and VirtualBox (briefly), any advantage of using either one? Any other recomendations?
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Can I run a 32 bit device driver on a 64 bit o/s, by creating a virtual 32 bit machine?

I have a device for which there are no 64 bit drivers (a USB connected scanner). I am replacing the 32 bit machine (Windows XP) to which it is attached with a 64 bit Windows 7 machine. Will it be ...
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VirtualBox: make host and guest OS talk between each other

As I said in the title, I want to access via ssh my VM from the host OS and the other way around (both OSes are ubuntu; 10.10 on the host, 9.10 on the guest) To do so, I've configured a bridged NIC ...
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What would be optimal settings for a Windows 7 VirtualBox VM running on a Macbook Pro?

I am having a hard time coming up with decent performing settings to run my Win7 64-bit VirtualBox VM on my brand new Macbook pro. I've given it 2G memory (out of my 8G total), tried what feels like ...