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

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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 ...
22
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16answers
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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 ...
7
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3answers
2k views

Convert VirtualBox guest into main OS

Is it possible to somehow convert my guest OS to the Host OS? I have a PC and would like to physically install my current Ubuntu VM into my new notebook. Is it possible?
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2answers
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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 ...
8
votes
2answers
3k views

How to copy VirtualBox VDI contents to a partition and dual boot the OS from it?

I'm a Linux user but I keep a compressed Windows XP ISO with me on a pen drive for the case I absolutely need Windows to do something. This works in VirtualBox most of the time. But now I want to ...
8
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3answers
10k views

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 ...
13
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2answers
8k views

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 VM in VirtualBox to another computer, I was wondering which one is the ...
13
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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 ...
11
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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, ...
2
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3answers
3k views

Is it possible to split VirtualBox Hard Drive to multiple volumes?

VirtualBox hard drive usually has one or a few files when you create a drive. I think it is good because you manage only a few files. However, I have out of space of my drive. Is it possible to span ...
5
votes
3answers
2k views

Is it recommended to run a firewall/router on a virtual machine?

Googling found me people saying running a firewall/router as a virtual machine is "dangerous" but none of them gives any reason as to why it is so. I also found posts from people who are successfully ...
4
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2answers
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Virtualbox 4.2.10 Auto resize not working. Will auto-resize down but not up unless in full screen

Using Virtualbox 4.2.10 with Windows 7 as host and guest. If I press Ctrl+F, the OS goes full screen. If I check the resolution, it says 1680×1050 -- same size as my host OS that has many ...
3
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2answers
7k views

Access localhost on Mac OS X from Parallels machine

i need to test my web site, running on a local Mac, under several browsers in Windows. I use Windows XP, installed in Parallels Desktop. It would be great, when i will be able to access my ...
10
votes
4answers
12k views

emulate fake monitor on windows 7?

Is there any 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 I ...
10
votes
3answers
27k 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. ...
7
votes
4answers
6k views

Cannot boot after vhd hard drive is resized in VirtualBox

In Windows 7, I set up another Windows 7 VM in VirtualBox. It worked great. Then, I needed to increase the vhd HD size. So, I used VBoxManage utility to do that with the following comment: VBoxManage ...
7
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2answers
7k views

64-bit or 32-bit guest for a 64-bit host ? (VMware)

So, here is my all-timer question. Never seen a total answer to it, so please guys, help me out. I have an Intel Core i7 CPU with every hardware stuff enabled (except hyper-threading). My OS is a ...
7
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4answers
2k views

why does Virtualbox use 15-20% CPU when VM is paused?

I run VirtualBox 3.1 on Ubuntu with a Win XP guest. I have noticed to my surprise that when I pause the VM (its screen grays out) VirtualBox continues using 15-20% of the host's CPU. Is this normal ...
6
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3answers
2k views

What is the world's smallest-footprint LAMP stack? [closed]

What is the world's absolute smallest known VMWare/VirtualBox image supporting basic Apache/PHP/MySQL functionality? Before or after compression.
4
votes
3answers
403 views

Is there any alternative to virtualization for handling two different interfaces, different networks and same IP range?

I have a Linux box with two different NICs that are connected to two different networks, but they share the same IP range (10.0.0.x). My first idea was to use virtualization for that (i.e., Xen), but ...
4
votes
3answers
973 views

Minimal OS for running virtual machines

Is there a minimalistic operating system built purely for the purpose of running virtual machines (preferrably open source / otherwise free)? If not, let's say I decided to do something like Linux ...
4
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7answers
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Windows 7 Virtual PC + Linux Ubuntu

I've installed Ubuntu inside a virtual machine running on Windows 7's Virtual PC. One thing I've noticed right away is that it has to capture the mouse and not all the hardware works as expected. I ...
3
votes
2answers
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VT-x/AMD-V Work-Around For VirtualBox?

After converting a Parallels VM to VirtualBox, the converted VM still does not run. VirtualBox says: VT-x/AMD-V hardware acceleration has been enabled, but is not operational.... Please ensure ...
3
votes
3answers
16k views

Best way to virtualize physical Windows 7 installation in Linux?

Ever since I saw a friend running Windows 7 inside Mac OS X with VMware Fusion, I've been trying to do the same on my laptop, in order to avoid having to reboot every time I have to use a Windows ...
2
votes
1answer
4k views

How do I get a bridge network to work for VirtualBox with Linux guest on a Mac OS X host

Does anybody have the step by step configuration process that would allow VirtualBox running a Linux/Ubuntu guest on a Mac OS X host use the bridge type network using Ethernet and wireless? I have ...
10
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5answers
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Are there any open source app virtualization solutions for Windows

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 ...
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4answers
2k views

Why is Hardware Assisted Virtualization disabled by default?

Why would vendors by default set hardware assisted virtualization off? I have a Lenovo Thinkpad X201 (64bit) but it seems this is the case with other vendors too. I want to run some virtual machines ...
5
votes
5answers
4k views

How do I find the IP address of a virtual machine using VMware Fusion?

Can I determine the IP of a virtual machine using VMware Fusion without actually entering the operating system running on the virtual machine? I'm looking for a menu option, command line, or otherwise ...
5
votes
2answers
1k views

Has anyone managed to virtualize Windows 7 on a physical disk?

I have Windows 7 installed on a partition and running fine, but I want to access the parition from my Ubuntu installation with VirtualBox. I have created the virtual disk file and everything, but ...
5
votes
3answers
6k views

VirtualBox NAT port forwarding on Ubuntu 64?

I have an Ubuntu 9.04 desktop 64-bit guest OS running on an Ubuntu 9.04 desktop 64-bit host OS (yes, the same OS). I'd like to run a web server on the guest and make it accessible through NAT on the ...
4
votes
1answer
2k views

Performance impact of running Linux in a virtual machine in Windows?

I'd like to know what performance impact I could expect running Linux in a virtual machine in Windows. The job I need Linux for is heavy and almost non-stop code compilation with GCC. Dual-boot ...
3
votes
1answer
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VMWare VM's network card not working after VirtualBox installed

I use VMWare workstation and have had no problems with my virtual machines and bridging the network card. However, I installed Virtualbox to check it out and ever since I can't establish a network ...
3
votes
2answers
1k views

VirtualBox network configuration

I have a CentOS 6.1 virtual machine, virtualized with VirtualBox on Windows XP. This machine hosts my local development MySQL server. I'd like to find the correct network configuration, so that: my ...
3
votes
5answers
645 views

How does it hurt to use Linux (Ubuntu) as a guest OS for all my tasks?

I have a machine running Windows, where the disk has two partitions C (50 GB) and D (250GB). I do research in Information Retrieval and need to work with a large corpus (more than 50 GB) and in ...
3
votes
3answers
18k views

How to shrink Windows 7 XP Mode VHD files?

I'm trying to shrink a Windows 7 XP Mode VHD file with VhdResizer with little success. When I select my VHD file, it says "VhdExpand only supports fixed and dynamic VHD files". My XP Mode VHDs are ...
2
votes
2answers
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How to detect if VT-X has been turned on in the BIOS?

I know I can check is VT-X is supported by a processor by egrep '(vmx|svm)' /proc/cpuinfo. But even if it's supported, it can be turned off in the BIOS. How can I detect if it's turned on or off?
2
votes
3answers
352 views

Is it possible to remotely connect to computer without disrupting their session?

I am trying to figure out if it is possible to connect to a computer using RDP, VNC, Etc without actually disrupting the computer you are logging into. My wife uses my desktop computer at home so she ...
2
votes
4answers
11k views

How to import an Image for VirtualBox

I have VirtualBox installed on Ubuntu 64. I have a few Images I need to import into my Virtual Box. What I got is a file with *.ovf and a file with *.vmdk What am I suppose to do with those files?
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0answers
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Can I avoid losing three IPs per network on a bridged Xen networking setup?

About a month ago, I asked this question on Superuser. The answer given there certainly works, but I've run into an issue I haven't thought of before. The setup I had running (based on the previously ...
24
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5answers
4k views

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 ...
5
votes
3answers
974 views

Dual-Virtualization vs. Dual-Boot vs. Single-Virtualization

A friend of mine recently suggested something that intrigued me: in the case of needing multiple Operating Systems simultaneously, instead of dual-booting or using multiple computers, one could use a ...
5
votes
1answer
12k views

enable AMD-v on Asus M4A88T-M with AMD Phenom II X6 1090T

I've problems with x64-virtualisation in VMware Workstation. I don't know what's the problem: Hardware: AMD Phenom II 1090T (does support AMD-v), ASUS M4A88T-M Mainboard and 8GB of RAM. That should ...
4
votes
2answers
754 views

Why doesn't Windows 8 Task Manager report the actual CPU frequency when Virtualisation is turned on?

In this question, I asked why the actual CPU frequency wasn't being reported in the performance tab of windows task manager. It turns out I had Virtualization turned on in the BIOS. When I disabled ...
4
votes
2answers
3k views

Why does my Windows 8 Pro Hyper-V guest have no internet?

Trying to get this working on my Windows 8 Pro machine. I created an External Switch Assigned the newly available adapter to a Guest machine with Win 2008 os. My host has internet connection. Host ...
4
votes
4answers
1k views

When running virtual machines, is VT-x support or higher clock speed better?

I'm looking at building a new desktop workstation. I will be using VMWare Workstation to run virtual machines, probably only one or two at a time. I am currently deciding on CPU and the options I am ...
4
votes
2answers
352 views

How to create virtual machine environments?

I want to create a number of virtual machine environments for testing new beta releases - Windows 7, VS2010, Windows Server 2008 and so on. My host OS is Windows XP. What is the best way of going ...
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3answers
2k views

Share virtual machine images between multiple computers

I am in the process of setting up a development environment for a new project and wondered about the theoretical possibility of my ideal set up. I would like to use virtual machines in order to make ...
3
votes
2answers
195 views

Virtualization of multiple command line tools

Short Question Has anyone had success virtualizing multiple command line tools in Windows? Background In a previous SU Question I asked how to setup isollated work envrionments. The over all ...
3
votes
3answers
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How Do I Access localHost From VMware

I've created a new WinXP vitual machine on my win7 using VMware player. The VM is using NAT to share the host's Internet connection and when i put http://192.168.163.2/ in IE on VM, i can easily ...
3
votes
1answer
850 views

Debian networking stopped working after cloning VM image (virtualbox)

After I cloned a VirtualBox VM image, either original nor cloned Debian 6 (squeeze) image have networking works anymore. I've read A TON of articles online describing modifying the ...