VirtualBox is a free, open source virtualization program from Oracle for the x86/x86_64 architectures.

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VirtualBox: Start tag expected, '<' not found

After restarting VirtualBox on a hard drive almost full, the VM I was using in "unaccessible", with this error message: Start tag expected, '<' not found
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2answers
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mount gives unknown filesystem type 'vboxsf'

I'm getting an error message mount: unknown filesystem type 'vboxsf' when trying to mount a shared folder on my guest Ubuntu machine. I have a Windows 7 machine running 4.1.22V Oracle VM VirtualBox. ...
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3answers
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How to connect to VirtualBox remote desktop client using VNC?

I am using VirtualBox 4.0 on Ubuntu Narwhal with guest OS Windows XP. I've installed the VB extensions and enabled remote access through port 3389 as suggested on several sites. I am trying to ...
8
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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 ...
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6answers
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micro linux distro for virtual box

Is there a tiny linux distro for running in virtual box or other VM, centred about running a single app, perhaps using the X-server installed on the host? I kind of imagine something that pretty much ...
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2answers
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Forcing monitor resolution in VirtualBox VM on Linux Guest

I am working in a VirtualBox 4 VM running Slackware-current. I have added an external monitor, and am attempting to set up both of them to run in their native resolutions, but am having no luck. I am ...
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5answers
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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 ...
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3answers
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Disable Windows Key hotkeys when using Virtualbox

I'm currently running a VirtualBox of Arch Linux with Windows 7 x64 as the host. In Arch, I use dwm for window management. As dwm is heavily dependent on hotkeys, I've used the Alt key as its META key ...
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4answers
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Transferring VirtualBox Virtual Machines to another computer

Is there any way to transfer VirtualBox VMs, with their operating system and all their files intact, to another computer?
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VirtualBox 4.1.20 (Windows 7 / Ubuntu 12.04 (64 bit)) copy/paste is broken

I can't make copy/paste between Windows and Virtual Ubuntu 12.04 to work with this configuration: Host: Windows 7 Professional with VirtualBox 4.1.20 Virt: Ubuntu 12.04 (64 bit) with all ...
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1answer
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Resize partition of Windows 7 running on VirtualBox with dynamically allocated storage

I run Windows 7 inside VirtualBox. I resized the disk of Windows 7 from 25 GB to 50 GB: VBoxManage modifyhd Windows\ 7\ Pro.vdi --resize 50000 ...
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3answers
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How to install Windows 8 Developer Preview on VirtualBox in Ubuntu?

I have downloaded the Windows 8 developer preview ISO and I'm trying to get it running on VirtualBox 4.1 in Ubuntu 11.04 64-bit. Short story: it doesn't work. I see a message "Loading files..." ...
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2answers
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VirtualBox: How to sync host and guest time?

The time in my guest VM is faster than the host time by about 20-30 minutes. What can can I do so that the time in the guest is the same as on the host?
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3answers
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Sync Iphone in Windows XP running as Virtualbox guest under Ubuntu 9.10

I run (K)Ubuntu 9.10 as my main operating system, but I still have a valid XP license, so I've been running Windows XP as a guest operating system with Virtualbox 3.10. I cannot get Itunes (running ...
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6answers
12k views

virtual box stuck at “starting virtual machine” 0%

After upgrading to virtualbox 4.2.16 all of my VMs get stuck at launch. I tried downgrading to 4.1.26, but I still get the same problem. Screenshots: (not enough rep to post images) When I ...
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1answer
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Configuring VirtualBox host only networking: OSX host, Ubuntu guest

SOLVED: I got this working by reconfiguring the vbox network settings to 192.168.21.19 (in VirtualBox -> Preferences -> Network) and commenting the line specifying a gateway as it's not needed (no ...
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3answers
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How to run Android-x86 4.2 iso on VM VirtualBox?

I installed oracle VM virtualBox on Win7,then I downloaded android-x86-4.2-20121225.iso from Android-x86 - Porting Android to x86.After I installed Android x86-4.2 on VirtualBox from iso and creating ...
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3answers
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Configure VirtualBox to connect to Internet through proxy

I'm currently trying to run Chrome OS in VirtualBox 3.0.1. Windows XP Pro is the host system. The actual behavior is Chrome OS starts up fine, reaches the login screen. Once so, when trying to log ...
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2answers
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Is there any performance difference between the VMDK and VDI virtual disk formats with Virtual Box?

In virtual box 3.0.2 is there any performance difference between using the native VDI virtual disk format and the VMDK virtual disk format?
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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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2answers
8k views

How to decrease the CPU usage when running Virtual Box?

I am facing an issue with 100% CPU usage under my system when running VirtualBox. Here are some further details: My System Information: CPU 1 name: Intel(R) Pentium(R) Dual CPU T2310 @ ...
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4answers
404 views

Difference between Mac and Windows Host for XP Guest in VirtualBox

Here's the setup: I have an older piece of remote monitoring equipment, known as a Badger. The GUI control software that runs on Windows is a Java app, the CD has a date of 2003 but I think the ...
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3answers
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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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3answers
16k views

Connecting to VirtualBox guest (ubuntu) from host (osx) via NAT?

I have a VirtualBox guest (running Ubuntu) configured with NAT through my host laptop (running OSX). It was my understanding that with NAT configured, I could access the guest from the host (w/o any ...
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3answers
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Where can I find Amazon Linux AMI Image for VirtualBox?

I'm trying to learn AWS and because I'm some familiar with Linux, I think the best way to learn is to get Amazon Linux AMI right into VirtualBox software and play with it. I see the latest Amazon ...
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5answers
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Capturing a window image or taking a screen shot in a Windows XP virtual machine running in Virtual Box on a MacBook pro?

I've got a MacBookPro (no external keyboard, just the built-in laptop keyboard) and I'm running Virtual Box. My virtual machine is Windows XP and I'd like to capture an image of a window (or the whole ...
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2answers
1k views

Can't find the right Ubuntu Server ISO for VirtualBox

I have been trying all morning to find the right Ubuntu Server (12.04) ISO to use for installing an Ubuntu guest OS on my VBox VM. Here are the relevant stats: Host Machine: AMD 64-bit Host OS: ...
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4answers
3k 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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Visual Studio Development on Virtual Box, Boot Camp, or VMWare Fusion

I currently have a Mac, 2ghz and 2 gigs of ram, running OS X Leopard and Virtual Box with a Windows 7 Pro 32bit virtual machine. Performance on the virtual machine is fine for minor tasks but is very ...
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4answers
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Why can't I connect to my VirtualBox using Remote Desktop?

Here is my setup: Everything in running on a single machine, under Mac OS X Snow Leopard. I am running Windows 7 in VirtualBox 3.0.10. In the VirtualBox settings, under Display, Remote Display, I ...
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3answers
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Should I enable Intel Virtualization and VT-d?

I have an Intel Core Duo P8600 and use Virtualbox. Virtual box some settings about virtualization. My question is should I enable Intel Virtualization and VT-d? I found that they were both ...
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3answers
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Virtualbox - Install Guest Additions over again every time Linux kernel updates

I have Ubuntu running as a Virtualbox, and every time it upgrades the kernel, the Guest Additions stop working. The install process in Linux requires using a virtual CD, running scripts from the ...
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Virtualbox, merging snapshots and base disk

I have a virtual machine with about 30 snapshots in branches. The current development path is 22 snapshots plus the base disk. The amount of files is seemingly having an impact now on IO and the dev ...
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1answer
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Getting 1920x1080 resolution or 16:9 aspect ratio on Ubuntu or Linux Mint

I am running Ubuntu and Linux Mint in VMWare. In the display settings, none of the 16:9 aspect ratio resolutions are available, including the commonly used 1920x1080 resolution. How can I enable this? ...
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4answers
807 views

Manual clone/recreate virtual disk

I am trying to clone a virtual disk image in a fairly manual fashion. The overview of my methodology so far is as follows: Create virtual machine in VirtualBox with 120GB HDD (hypervisor and HDD ...
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5answers
16k views

Change resolution from command line in virtual box

In virtual box, how can I change the screen resolution from the command line? (Or if there's one for any type of computer, that might work too).
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E_FAIL (0x80004005) when running Linux through Windows 8 Virtualbox

I wanted to run Linux through my Winows 8.1 machine using VirtualBox as hypervisor. After I tried adding Ubuntu (or Fedora, on another instance) to the list of virtual machines, I clicked Start, but ...
7
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1answer
874 views

Is there a way to simulate a network outage for running VMs VirtualBox?

I have several guest VMs configured to use internal networking. Is there a way to simulate a network outage on specific VM interfaces while the guests are running? Edit: I really need a command ...
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2answers
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installing on a physical drive with virtualbox/Windows

How can I install a guest system on a physical drive/partition in virtualbox running on a Windows host ?
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2answers
18k views

Does QEMU's performance (still) lag VirtualBox's and is there a way to improve it without the hardware support+kvm kernel module?

I've noticed several articles that have claimed that QEMU is slower than VirtualBox (without hardware assistance) but several are years old, and the newest seemed to be from last year. Is it true ...
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2answers
8k views

Converting existing PC into a VM with Virtual Box

I'd like to convert my laptop (Windows Vista) into a VirtualBox VM. I think there is a utility for VMWare, but is it possible to do with Virtual Box? Also, do I need another (host) PC to run the ...
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3answers
3k views

How do I change the space I allocated to my virtual hard drive in VirtualBox?

I have a Windows 7 64-bit virtual machine running inside VirtualBox. When I first setup the system I gave the virtual hard drive 20GB of space to work with, but I also set it to dynamically expand (or ...
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4answers
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How much hard drive space should I give my Windows 7 Virtual Machine?

I'm going to reformat my computer today and install Linux Mint on it. I developer on a .NET stack mainly for work and home, but I hate using Windows (go figure). What specs do I need for Visual ...
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6answers
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Ubuntu in Virtualbox - WEBrick web server very slow when using local IP address

I'm using Ubuntu (Lucid Lynx) to learn Ruby On Rails. I'm running Ubuntu in VirtualBox (the host is Windows 7 Ultimate), using bridged networking. When I run my Rails app and point the browser at it ...
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3answers
4k views

How to Switch Some Basic Keys in Windows (Windows VirtualBox Guest on OSX Host)

I am going crazy switching between Windows XP in a VirtualBox and the host (OSX), mostly due to the use of control-c, control-v, control-x and that they are different between the two OSes. Is there ...
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2answers
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Ubuntu Linux server - set file permissions for VirtualBox shared folder

I have Ubuntu server with Apache 2, PHP, and various DBMSs running in VirtualBox on my Mac host for my web development work. To easily create/edit the files I'm working on, I mounted a directory from ...
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3answers
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VirtualBox running Ubuntu is slow (Mac OS X host)

My MacBook Pro is generally a fast machine (3.06 Ghz Core 2 Duo, 8GB of RAM, 7200RPM hard drive) but VirtualBox 3.2.6 running Ubuntu 10.04 is just too slow compared to VMWare. What can I fiddle with ...
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2answers
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How to clone entire VirtualBox OS to a new PC (real-hardware)?

The situation is; I am running a web server (Ubuntu 10.10 server) on virtualbox v.4 inside Ubuntu 10.10 Desktop and now I want to clone entire web server on my brand new PC. Please help me with this, ...
7
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1answer
5k views

How to boot a KVM virtual machine raw image to VirtualBox?

I have received a .img file of a server which is a Virtual Machine running in a KVM environment. The Virtual Machine was installed with Ubuntu. I would now like to take this .img file and "emulate" ...
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4answers
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Using my OEM windows license in a virtual box image?

I just bought a new PC, I'd like to wipe windows and install Ubunutu, but I'd like to be able to run windows in virtual box. Rather than have to buy a totally new window's licence, is it possible to ...