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

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Error “FATAL: Could not read from the boot medium. System halted”, while installing Windows 7 on VirtualBox

I have installed VirtualBox 4.3.22 on Windows 7 professional. I want to create Windows 7 Virtual Machine using Virtual Box. (My intention is to have a Windows 7 VM running for evaluating different ...
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How can I make default Vagrant storage a fixed size?

I use Vagrant with VirtualBox provider. When I execute vagrant up in my terminal I had a Dynamically allocated storage at the end of execution. How can I change --variant option to the Fixed storage ...
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26 views

Starting VirtualBox machines fails with “Unable to load R3 module … VBoxDD.DLL (VBoxDD)”

Starting any machine on VirtualBox 4.3.22 on Windows 7, is failing with the following errors: Failed to open a session for the virtual machine Kivy. Unable to load R3 module C:\Program ...
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Guest Additions for Ubuntu Server guest on Windows 7 Host

At the very outset, I am a complete newbie to Virtual Box and Vagrant. I have tried finding an answer everywhere, but I am not sure I am on the right track! Any help will be appreciated! My host is ...
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8 views

Why my HostOnly adapter stopped working on my virtualbox guest and I cannot connect to it?

Basically my setup is: Windows 7 laptop with VirtualBox with Centos6 installed. I have 2 adapters enabled on guest: 1 NAT for internet access and 1 HostOnly to connect to this machine (for e.g. scp ...
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25 views

Where to copy kernel source after kernel is compiled from sources?

On my linux box (Mint 17.1) I compiled the kernel from sources so that I could enable certain things that are not there by default. The kernel compiled fine and the system boots/works just fine. ...
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14 views

Vagrant virtual machine automatically halting when laptop is put to sleep

I’m using a Vagrant box (running in VirtualBox) I got from a third party and it always automatically shuts down when I put my MacBook Pro to sleep. When I wake up my laptop I need to run vagrant up to ...
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10 views

My virtualbox is dynamically allocated but I'm still getting a disk space error when downloading Visual Studio

I've set up my Virtualbox with Windows 7 and I'm trying to get Visual Studio express to run on here, but everytime I get ready to install, it tells me "You may need to free up disk space" and won't ...
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4 views

Virtualbox Color Depth

Windows 7 64bit Host, Windows 98 SE Guest. I am trying to run a game that requires 16-bit color depth (Obsidian). The Guest's display panel is telling me I am in 16-bit color mode. But the game says ...
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7 views

VirtualBox, shared folders and npm modules

I'm had tried to install some npm modules and got a problem: vagrant@vagrant-ubuntu-trusty-64:[path/to/shared/dir]$ mkdir newDirectoryName mkdir: cannot create directory ...
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13 views

Vagrant ssh fails — after cloning the box with vagrant package

i've set up a first Vagrant box for python dev that works very well. I can vagrant ssh in that original box without issue. Trouble start when i try to create a copy of that box (with vagrant ...
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19 views

External Hard Drive Used for a File Server

I'm starting a small server farm serving my surrounding community, my goal is about 100TB capacity with no redundancy necessary. It's going to be an ubuntu machine with VM running windows server. ...
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24 views

Setting Kali Linux as default system instead of using it via VirtualBox?

I just installed Kali Linux using VirtualBox. Is there any method to set Linux as my default system and get rid of the current one which is Windows 7? Or is it neccessary to delete both and install ...
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1answer
25 views

Problems installing Ubuntu in VirtualBox

Whenever I try to install Ubuntu 14.04 in Virtual Box some strange codes pop up and no matter what I do. Am I doing something wrong? A few hours before I successfully installed Windows XP SP3, but ...
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13 views

How can I change the language on my VM Virtual box to English

Yesterday, I downloaded and installed the Oracle VM Virtual Box on my PC but the UI language is Danish. Can anyone guide me through the process of changing the UI language to English? I have tried ...
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15 views

no internet on LAN, pfsense

i have installed pfSense 2.2 in virtualbox on my windows7 laptop. WAN(em0) interface is assigned to wireless adapter of the laptop and LAN(em1) interface is assigned to lan adapter of the laptop. ...
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Which Free Virtual Pc Software allows you to connect to wifi within your virtual desktop? [on hold]

This is a follow up question to: How to connect to wifi using Windows 8.1 preview in a Oracle VM VirtualBox virtual pc If VirtualBox doesn't allow you to connect to wifi in your virtual pc. Which ...
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25 views

How to connect to wifi using Windows 8.1 preview in a Oracle VM VirtualBox virtual pc

I've been thinking about upgrading to Windows 8.1 but wanted to test it first in a virtual pc I made using Oracle VM VirtualBox. I downloaded the Windows 8.1 preview software and so far it works well. ...
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Virtualbox Popup Info after mouse is captured

As of this posting, Virtualbox pops up a pretty big info screen saying lots of stuff about mouse capture/host key stuff. In my haste, I clicked to not show this popup, but I'm kind of regretting that ...
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21 views

Is a 32 Bits Windows 8.1 Virtualization without VT-X possible? [duplicate]

I have the following processor : Intel T6500 I want to launch a VirtualBox from within a Mint 17 x86 (/dev/sda3). And then, in the virtual box, launch my Windows 8.1 x86, which is installed on the ...
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12 views

VirtualBox: create a serial port bridge to the same VM

I'd like to make a bridge between Serial Port 1 and Serial Port 2 on a VM. Practically this would route all data from VM Serial Port 1 back to VM Serial Port 2 so that an application listening on ...
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3 views

vagrant config with public iface problems

I have Vagrant/coreos 3 node configuration in VirtualBox with config.vm.network "public_network", bridge: 'eth0: Wi-Fi' when coreos nodes come up they have for some reason 2 network ifaces: eth0 that ...
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60 views

Virtualbox vm goes into aborted state whenever Macbook goes to sleep

I'm running Yosemtie OSX (10.10.2) and Virtualbox 4.3.22. Whenever my macbook goes to sleep, my vm goes into "aborted" state, and does not recover (i.e. has to be manually restarted/booted). Looking ...
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18 views

Making a pgAdmin connection to PostgreSQL running on VirtualBox

I have a CentOS 6.5 development server that I installed postgresql on. It runs fine and I can connect to it from my computer using pgAdmin all works perfectly. I recently created a backup of this ...
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15 views

Windows XP machine doesn't see Debian disk in VirtualBox

I have created a test Windows XP machine for testing software. I also have an old Debian HDD. But I have forgotten my Debian password (it last ran 2 years ago). I think I'll either reset the password ...
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1answer
14 views

How do I set up VirtualBox 'multi-site' test lab?

I have VirtualBox installed on a machine at home. What I would like to accomplish is to set up two (or maybe more) different subnets within the Internal network (completely isolated from my home LAN). ...
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16 views

Accessing a virtual machine outside a network

I've set up a virtual machine (using VMware, running linux mint, also had another one running RHEL 5). Now in the coming future, I'd like to develop a project which would involve remotely accessing ...
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9 views

Allocating server CPU cores to virtual box guests for heavy compute, light i/o load

Please share your recommendations for allocating CPU cores to guests on big iron. I am asking basically this question 6 years later: Is there an optimal setting for the number of CPU cores exposed ...
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10 views

vagrant re- installation problems

I had to move my environment to new account "newname" from the old one "oldname". I cannot re-initialize vagrant ( i tried vagrant init, or manually deleting /Users/newname/.vagrant.d), it still ...
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running multiple versions of iTunes on one machine

Does anyone know if multiple versions of iTunes can be run on a virtual Windows 7 machine? My intent is to have two separate iTunes Media Folder directory trees, with a different version of iTunes ...
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21 views

Mount existing partition on VirtualBox

I've been trying to boot my Windows 8.1 on a VirtualBox machine under my Linux Mint 17. Everything is in x64. I've installed VirtualBox and its GUI to do so. My Windows 8.1 is on /dev/sda2, my Mint 17 ...
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18 views

Windows 7 emulate wifi pci card as usb

I have a pci wifi card which I want to share with my ubuntu guest (virtualbox) so that it can act as a wireless router. I know that virtualbox doesn't allow pci passthrough so is there some software ...
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9 views

2nd monitor absent in VirtualBox

I'm using VirtualBox but cannot get a second monitor for my guest. Why not? As you can see in the screenshot, the Win7 guest actually thinks it has two monitors, but there is no window for the second ...
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9 views

Connect 2 physical machine drops Internet connection

I have 2 physical machines, with 2 VM on the first physical. I have been trying to connect 2 physical machines via RJ45 and give internet to the "lan" via NATting RNDIS on one VM (gateway) and routing ...
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65 views

Randomly getting booted off of SSH despite sending keepalives

I’ve cooked up a Debian 7 virtual machine (with VirtualBox) in an attempt to play with setting up my own server and other such cool tricks. This is all on one computer. I can SSH into the virtual ...
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Unable to log into encrypted root drive after running virtual machine [duplicate]

I am unable to log into my encrypted hard drive on the host which is Ubuntu 14.04 LTS desktop. This all happened after I did the following. Ran VirtualBox Created a VDI drive Installed Kali Linux ...
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50 views

LinuxMint 17.1 / Ubuntu 14.10 get stuck on reboot after install in VirtualBox

Trying to install LinuxMint 17.1 / Ubuntu 14.10 and it is getting stuck on the reboot phase after I install it in VirtualBox 4.3.20 r96997. How can I get this fixed?
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32 views

cannot mount vagrant synced folder after packaging box

I have created a vagrant box on osX. With the following configurations I can start the box to use a synced folder. config.vm.box = "mac_osx_1010" config.ssh.insert_key = false ...
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22 views

Emulating an older OS to use printer on windows 7

I've searched the internet inside out for windows 7 compatible drivers for my printer HP Color LaserJet 3550. I've also tried using a version lower and higher drivers to no avail. Windows 7 still ...
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22 views

How to shrink accidentally expanded VDI?

I've accidentally expanded a dynamically allocated VDI image to ~150TB instead of ~150GB using VBoxManage modifyhd (a lesson to learn: [--resize <megabytes>|--resizebyte <bytes>]) Now, ...
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51 views

How To fix a PPTP VPN client connection (Ubuntu on VirtualBox)

I have just installed Ubuntu 14.04 on VirtualBox and I'm trying to set up a VPN client. I have configured it with the same settings I use on a Mac and I am able to connect from that without any ...
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1answer
22 views

How to connect VirtualBox guest to the host using a VIRTUAL cross-over cable?

Is it possible to configure an Oracle VitualBox guest settings such that is connected to host by a virtual cross-over cable?
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Can I tunnel to a host-only device?

I have a tricky routing/tunnelling question, hoping someone can help. My setup is this: On my lan, I have a Ubuntu workstation and a Windows 7 PC. The Windows 7 PC is running Oracle Virtual Box, and ...
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21 views

Does Upgrading VirtualBox affect guest OS activation (Windows 7)

I am running a retail edition of Windows 7 as a guest OS in VirtualBox. Windows 7 activation is sensitive to hardware changes. In the case of a virtual machine, the hardware is mostly emulated. In ...
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12 views

Problems migrating a Windows XP virtualbox from UBuntu 12.04 to 14.04

I've recently re-installed my (now) Ubuntu 14.04 based server which was previously running 12.04. The server is headless and I used to be able to connect in via remote desktop but for some reason I ...
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50 views

Win7 pegging CPU at 100% from wuauserv - why?

I've used Win7 as a guest with an Ubuntu host in VirtualBox for 5+ years now. Recently, either a VirtualBox update or Win7 update has caused it to peg the CPU at 100% for hours, every time I boot it. ...
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24 views

Share a VirtualBox guest machine folder with host machine

My question is simular to this question. Since the question was asked years ago, virtualbox development has changed owners. In my case I have windows 8.1 running a windows 8.1 vm. Is there a way to ...
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18 views

VirtualBox (or WMWare) use VPN as Ethernet connection

I want to create VM and I want that guest OS (Windows) have internet only from VPN, that is created on Host OS. If VPN connection on HOST OS in off - Guest VM must not have any internet, ethernet ...
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Vt-x is disabled in BIOS - Failed to open a session for the virtual machine Kali Linux 1.0.9

I am trying to load Kali Linux(kali-linux-1.0.9a-amd64) on Oracle Virtualbox and encountering the following error. How do I fix this?
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Virtualbox no internet connection at guest OS

I am newbie in this virtualbox thing. So i have no idea how to configure network settings. I have Windows 7 (32bit) as Host OS and Ubuntu (32bit) as guest OS. The issue is that i am not able to access ...