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

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UBUNTU In Virtualbox Error (Black Screen Boot)

I am Going to install Guest Additions i accidentaly turned off them (The Virtualbox) after i turned on it. I got a black screen! I have no idea how this happens help me.
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2answers
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Virtual box couldn't be installed

I tried to install virtual box using the following command: sudo apt-get install virtualbox-qt But this gave me the following errors Some packages could not be installed. This may mean that you have ...
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CentOS 7 on VirtualBox Using 100% CPU

I have CentOS 7 installed as a guest in a VirtualBox 4.3.18 virtual machine, with the latest guest additions installed too. The host operating system is OS X Yosemite running on my 2014 MacBook Pro ...
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1answer
8 views

Setting proxy on and off, including user agent, on Ubuntu Server in Virtualbox

I am setting up an Ubuntu Server VM in Virtualbox, which I plan to export/import into different environments, as follows: 1) No proxy 2) Behind a proxy server whose address is known, with no ...
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1answer
31 views

Windows 2008 licensing - reinstall in VirtualBox

When I install Windows 2008 server in Oracle's VirtualBox, and I need to re-install either or both, is there going to be a problem re-activating the Windows server? Must the VirtualBox version be the ...
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1answer
5 views

Switching from Lubuntu to Mac: how do I import existing virtual machines?

On Lubuntu 13.10 I had some virtual machines running in VirtualBox 4.2.26. While backing up, all I ever did was make a copy of VirtualBox VMs folder. I have now switched to OSX, and now I am curious, ...
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21 views

Recommended Partition Layout for a Debian VirtualBox Server

First I posted this on Unix & Linux, but got no response so I deleted my post there before moving it over here - so this is not x-posting. I understand the basics, but I have a few requirements ...
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1answer
11 views

Monitoring physical network traffic with a VM

How can I monitor the physical network's traffic through a virtual machine (VMWare or Virtual Box)? I'm running Wireshark in a Linux VM and I would like to monitor all the network traffic. However ...
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1answer
19 views

Cannot install Windows 10 Technical Preview as a virtual machine in Ubuntu

Using latest VB in Xubuntu 14.04. When selecting "other Windows" the installation was stuck at the first step with a black screen, but following instruction on the web I find that the proper option ...
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1answer
6 views

BridgedAdapter of VirtualBox on Red Hat 7 stopped working

I have a VirtualBox VM (running Red Hat 7) on my Red Hat 7, using a Bridged Adapter for its networking. It stopped working yesterday; the NetworkManager on the VM was unable to obtain a DHCP lease for ...
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1answer
28 views

How can I fix a Debian VM booting to a black screen?

I have a VDI file with Debian installed on it. When I start the VM, GRUB is run and after choosing the system's version (restore or normal boot) a black screen appears. How can I diagnose what the ...
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46 views

Symantec Endpoint Protection Prevents VirtualBox Guest From Starting

We were running VirtualBox 4.3.16 on a Windows 7 Enterprise SP1 x64 host. A couple of days ago, our Corporate IT decided they were going to silently install a newer version Symantec Endpoint ...
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19 views

Why has my Debian testing VM suddenly stopped loading X Windows System?

I recently installed Debian testing (jessie as of writing) into a VirtualBox VM. After installing, I loaded make, gcc, and dkms so I could install the Guest Additions. After installing Guest Additions ...
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3 views

Fvwm: how can I make new windows stay in the parent's workspace?

I'm using Virtualbox with Fvwm. Every once in a while, I start a virtual machine and then switch to another workspace. When I do this, the new virtual machine window invariably appears in the ...
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14 views

VirtualBox single guest screen splits across two host monitors

I'm running VirtualBox 4.3.18 (and this has been happening since at least 4.3.16) on Ubuntu x64 host, with Windows 7 as a guest. Guest addons are up to date. My host machine has 3 monitors - two ...
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11 views

Intermittent VPN connection in VM

I have a Virtualbox VM running Ubuntu inside a Win8 host, using NAT for networking in the VM. I'm connecting to a Cisco AnyConnect VPN client on my host. The VPN connection works fine on my host ...
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1answer
21 views

How to convert a host Windows 8 into guest?

I have Windows 8 running as host along side Ubuntu on my laptop, I want to convert my Windows 8 installation into a virtual machine so that I can get rid of Windows as a host and just run it as a ...
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9 views

Vagrant taking up too much space

I switch between four projects on my local machine and I use vagrant for each on of them. $ vagrant global-status id name provider state directory ...
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0answers
30 views

Route all packets on port 80 from inside a vm to kali linux on another vm

I'm trying to route all packets on port 80 to kali linux so that I can ssl strip them but I cannot see to setup the iptables correctly to force all the packets to go to my other Vm. [ Virtual Machine ...
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0answers
24 views

Windows 8 Installation on VirtualBox Driver Issue

I am trying to install Windows 8 from an ISO on VirtualBox 4.2.13 (on Win 7). After I click install, It starts processing before showing a message that it can't find some drivers. What drivers could ...
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1answer
12 views

Adding virtual interfaces (not VLAN) in linux

for some software testing, I need 12 different IP addresses to contact, each one with a unique MAC address. I just set up an Arch Linux VM but I can't figure out, how to configure virtual network ...
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5 views

Move VirtualBox My Documents “.VirtualBox” folder to different location

I want to move the VirtualBox ".VirtualBox" out of the My Documents folder in Windows 7. I looked in two places to determine where the setting is defined... First I looked in the Windows registry ...
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1answer
194 views

VirtualBox XP host on Yosemite fails to connect to Mac share

Upon upgrade to Yosemite, my VirtualBox Windows VMs no longer connect to shares on the host Mac e.g. \\my-mac's-name\folder-name. It seems to see them (in Network Places) and either continually ...
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12 views

Use cloud-init with VirtualBox?

Cloudinit is used by many cloud images e.g. on EC2 to obtain their initial configuration, like IP address, ssh keys and the like. Is there a way of using it with VirtualBox in a similar way? I'm ...
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1answer
30 views

Direct traffic from host to one virtual machine then to another in Virtualbox

I have two services (firewall and DPI) running on two different virtual machines, and there is a server connected to the network which there are files on it to download. So I want VM2 to be able ...
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1answer
26 views

Uninstall last batch of windows updates [duplicate]

Last night my PC here at work automatically installed updates, I have it set to do that of course. This morning I tried to start Virtualbox and unfortunately it no longer starts due to the updates. ...
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1answer
12 views

How can I force removal of a linked CD image in VirtualBox?

I recently was installing Fedora in a VM. The install went fine, so I moved the CD image off of my desktop into my general Linux ISOs folder. The next time I opened VirtualBox, I got an error saying ...
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17 views

How to get a proxy working through Kali within Virtualbox?

So, I spun up a kali machine in virtualbox, I set the proxy within virtualbox to connect to our proxy (proxyurl:port). That wasn't working, so I played around with environment variables, did some ...
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1answer
55 views

VirtualBox suddenly eats gigabytes of memory

EDIT The original question had lots of speculation but it is all much simpler. See my own answer and this reported bug. I leave the original question in case someone is having similar issues and ...
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10 views

How to paste text from clipboard to the cygwin shell in VirtualBox VM running on OSX?

I have installed a copy of cygwin in a Windows Server 2012 which is hosted in a VirtualBox VM. The new cygwin terminal is not a simple DOS prompt anymore. From the option I will need to use ...
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14 views

Paste image from Centos Guest Clipboard to Windows Host on VirtualBox

Copy and paste bidirectionally is working for text: but not for images. I have tried from Libreoffice Draw and from Screeenshot to the guest clipboard: the Host can not see them. I am on VB 4.3.10 ...
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1answer
25 views

VirtualBox VDI's max size exceeds the host's hard drive size

I had a major oops moment that led to my VirtualBox guest VM's hard drive being larger than the host's hard drive. I rushed through reading the commands for resizing a virtual hard drive. As such, I ...
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26 views

Share a snapshot of a virtual machine state (virtualbox)

Think about the following scenario: An application developer figured out the library he is in use crashes. So he created a test project to isolate this problem, and have it sent to the library ...
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17 views

Convert Windows 8 VirtualBox to Bootcamp Partition

I have installed Windows 8 as a Virtual Machine in Virtual Box a while ago. For performance reasons, I want to create a bootcamp partition from the VDI to avoid re-installation. Is this possible? And ...
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1answer
21 views

Install an application on Guest OS in Virtual Box

I'm very new to Visualization. In my workstation I don't have admin rights. I just wanted to install SQL Server 2008R2. Fortunately I have Virtual Box installed. So I installed Windows Server 2008 as ...
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31 views

Hosting a 64 bit Linux guest on a 64 bit virtualbox guest. (Virtualbox nesting) [duplicate]

I have installed Virtualbox 4.3.10 on Ubuntu 14.04 64 bit running on the metal. ➜ ~ uname -a Linux bluebox 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 ...
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1answer
28 views

Bitlocker and virtualbox 64bit

I have a new laptop in which i activated BitLocker without having a TPM chip. Prior to doing that I installed virtualbox and enabled VMM(?) in bios, I dont remember the exact name of it but it was ...
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1answer
56 views

How to allocate more processor power to my (Ubuntu-based) Virtualbox system in Windows 7?

I have installed an 32-bit Ubuntu based Linux OS, Elementary, on a VirtualBox installed in Windows 7 (32 bit) , on a 64-bit laptop which has a 2-core Intel i3-2330 CPU @2.20Ghz, and 4GB RAM (2.45 ...
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1answer
29 views

How to propagate a server's host name on local DNS

I am asking this question because I don't know which network service should do this. I have a lightweight server on my LAN, and its host name is my_server. Now I would like every machine on my local ...
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17 views

Is it possible to convert .vdi or .vhd into OS cloning images?

I think the question isn't so clear. I'm asking if it's possible to convert Virtual Hard Disk files (.vdi, .vhd, etc., including snapshots) into Acronis Images, so I could emulate the system, set the ...
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1answer
15 views

What's the difference between auto-mount and permanent on Virtualbox

When sharing folders in VirtualBox, what is the difference between checking "Make Permanent" and "Auto-Mount", my guess is the second one mounts it once the window closes, and the former one mounts it ...
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1answer
32 views

Ubuntu 12.04.5 LTS stuck at bootscreen on Virtual Box 4.3.10

I had a running Ubuntu 12.04 VM on a Windows 7 host with Virtual Box 4.3.10 - until yesterday. Somehow, my host OS crashed and with it the still running VB. Now, when I try to start the VM again, it ...
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1answer
38 views

Using CERT Tapioca on VirtualBox

I'm attempting to use Cert Tapioca (http://www.cert.org/blogs/certcc/post.cfm?EntryID=203) in Virtual Box so that I can test the SSL/HTTPS security of all the sites I have browsed. What I did is, ...
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1answer
46 views

Converting Windows 8 to VirtualBox Virtual Machine

I'm working on converting a brand new Windows 8 install (came preloaded on a new laptop) into a virtual machine I can open with VirtualBox with Ubuntu as the base OS. I first installed Ubuntu onto a ...
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16 views

What to pick in Software Sources when installing Software using Linux Mint 17?

What to pick in Software Sources when installing Software using Linux Mint 17? For example, when I type Virtual Box, lots of results come out in long list, all having the keyword, I just find it ...
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2answers
399 views

Virtual Box storage format error while installing Windows 10 tech. preview

I'm trying to install the Windows 10 technical preview via Virtual Box on my Windows 8.1 32 bit laptop. After following the normal process of creating a new virtual machine by "New", when I go to ...
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Linux NTFS-3G General Protection Fault when using OS X in VirtualBox

I have an OS X virtual machine in VirtualBox on a Debian host. The disk image is located on an NTFS partition (which is not the system's root partition), mounted using NTFS-3G. The machine was ...
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102 views

Vagrant failing on Booting VM

Update Found this post https://forums.virtualbox.org/viewtopic.php?f=6&t=63556 There are security issues with 4.3.16r95972. I upgraded to 4.3.17 r96342 and everything is ...
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1answer
281 views

Can't simulate 64-bit operating systems on VirtualBox [duplicate]

My solution I tried to use VirtualBox to simulate Windows 10 Technical Preview, but experienced problems (see below). My solution was to use Hyper-V (as answered in this comment). How to access ...
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24 views

Cannot copy to or from shared folders in AndroVM-VirtualBox 4.3.14

Here it is clearly said that shared folders are supported in VirtualBox starting from versions released in 2013. But when I try to copy any data from androvm to /mnt/shared/Androshared folder, the ...