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

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Increase size of a vdi fixed disk, used for a virtualized ubuntu server

I have a fixed vdi disk in an ubuntu server (it's a virtual machine, i'm using virtualbox for handle this from my ubuntu desktop so). I installed a lot of things, and the disk is full (i wasn't pretty ...
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3 views

How to capture VirtualBox VM packets

I am currently running a series of three Ubuntu 14.04 VMs on my Windows 7 x64 host. The guests are all configured thusly: Host-Only Adapter Intel Pro/1000 MT Desktop Promiscuous Mode: Allow VMs Cable ...
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1answer
4 views

Accessing a local SQL server 2014 from within a VM running vista using VS2005 fails

My laptop is running Win 7 (x64) and is part of a domain. I've installed SQL Server 2014 Dev and VS2012 on it as I want to use the laptop for development. Since some of my development has to be done ...
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11 views

Linux Ubuntu 14.04 virtual box full screen

I'm using Ubuntu 14.04 in VirtualBox, and my machine is installed Ubuntu 14.04. I'm having problems with the resolution Fullscreen. I have already installed the Guest Additional, but still can not get ...
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1answer
25 views

Why can't the VMs in my pen-testing lab ping each other?

I have setup Kali Linux and Windows XP in Virtual Box. My first problem is, these two systems are not being able to ping each other. Second is, they are not being able to connect to the Internet ...
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3answers
160 views

A guest Linux system sees a text file as binary with ls

I am copying a simple text file to a guest Linux system on VirtualBox through shared folders, but after the copy, the VM seems to think that the file is a binary (it shows up green in ls): Is there a ...
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0answers
33 views

VirtualBox is unable to allocate cached memory on windows (not considering it as available)

Host: Windows 7 64x bit, 6 GB of RAM Guest: Red Hat 64x bit Host machine resources without running any VMs: Windows Resources [Case I] Guest machine with 2 GB memory When I run a memory ...
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1answer
21 views

Go to Ubuntu localhost from Windows XP in VirtualBox

I using Ubuntu 14.04, but I want to test my website in Internet Explorer, I install VirtualBox, create image for Windows XP. I have a connection to Internet, but I cant go to http://localhost/. I try ...
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5 views

Cannot restore Snapshot

Everytime I try to restore my VM from a snapshot I got My VM Freezing and I must shut it Down. When is shut down and I try to start the VM I got error: Code 'Exit: E_FAIL (0x80004005) Componente: ...
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0answers
27 views

Allow device usage only in VirtualBox

I have an USB device, and I want to connect it to VirtualBox, but I don't want to allow any usage of this device on the host machine - it should only forward the device to the guest. How to do this?
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5 views

Files attributes in Vagrant (VirtualBox) Linux guest, with Windows as a host

By default Vagrant (via VirtualBox) has a share /vagrant, which is a perfect place for project source code, as this is a root directory where Vagrantfile is located on host. The problem is my host OS ...
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20 views

What is the equivalent of Port Forwarding command in Mac Os x Yosemite

ifconfig eth0:0 192.168.1.215 netmask 255.255.255.0 /sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE /sbin/iptables -A FORWARD -t filter -i eth0-m state --state ESTABLISHED,RELATED -j ACCEPT ...
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40 views

Virtualbox on windows, Mac OS X Yosemite, get stacked [on hold]

I have a windows 7 computer, and I installed oracle VM Virtualbox on it (4.3.26 version), and I have a Mac OS X Yosemite in it. It has worked well for a long time, but today, when I opened google ...
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0answers
19 views

Ip Addresses and VMware issue [on hold]

So I am doing this lab which requires using VirtualBox. Problem: I need to make three different Ubuntu VMs with different IP addresses. The IP information I am getting for my three VMs are ...
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1answer
14 views

Where is Host-only Networks setting on VirtualBox 4.3.12?

I'm using VirtualBox 4.3.12 r93733 (with Ubuntu as guest OS, and Windows 7 as host OS). Trying to configure a Host-only Network, I expected to see the following window (or similar): However, ...
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1answer
22 views

How can I shrink the disk INSIDE VirtualBox?

I created a virtual disk using WindowsXP inside VirtualBox, the host is OSX. Initially I created the disk 20Gb, in 2 partitions, each of 10Gb. Because I did not need it, I dropped the 2nd partition, ...
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1answer
22 views

VirtualBox bridged adapter not working with one network

I have been using VirtualBox bridged adapter with some networks and it has worked right. But a few days ago I have tried it with a new network and this time it has not worked. The only difference in ...
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0answers
16 views

How to recover from bad VBox Guest Additions build?

I'm using Ubuntu 14.04 (fully patched). Last week, the kernel took an update. So I [virtually] inserted the VBox Guest Additions CD and then proceeded to build it. I don't recall having any problems. ...
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1answer
39 views

VirtualBox: killed by Windows Update

My VirtualBox environment on Windows 8 has suddenly died since I rebooted after a Windows Update overnight. Existing virtual machines that were working perfectly yesterday won't boot, either through ...
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1answer
13 views

What are the mouse/keyboard sequences for cut-and-paste on Ubuntu VirtualBox?

I have a non-graphical Ubuntu installed inside VirtualBox under Windows. I've installed VBoxGuestAdditions (and enabled bidirectional Drag'n'Drop - for the hell of it). However, none of the following ...
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14 views

How can I transport a file from my Windows ME using VirtualBox to the host?

I need to pick up a file located inside a Windows ME running from VirtualBox and put it in whatever else (e.g. the host system), but I'm being unable to do it thanks to a series of problems: The ...
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1answer
15 views

Select a rectangular block of text in Word 2013

I'm pretty sure that older versions of Microsoft Word would let me select a rectangular block of text by holding down the Alt key while dragging the mouse from one corner to the other. When I try it ...
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0answers
24 views

Using Virtual Box to install Ubuntu Server 14.04 on an external hard drive

I'm trying to install Ubuntu 14.04 onto a server hard drive. The server machine I have only supports booting to CD/DVD, not USB. When I've tried burning the Ubuntu 14.04 installer to a DVD for ...
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1answer
30 views

VirtualBox with Centos 7 minimal install, cannot connect to network

I just installed Centos 7 on a VM I'm running from VirtualBox on a windows machine. I installed the latest minimal release. I then went about setting up a static IP. When I try to access the machine ...
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18 views

Linux Mint - VirtualBox - Segmentation fault

I installed the latest version of Linux Mint I tried to install VirtualBox following several tutorials that exist on the Internet for this purpose went well, but when I try to run VirtualBox, ...
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18 views

Migrating Linux guest from Virtualbox 4.3.26 (latest) to VMplayer 7.1 (latest) on Win 7 64-bit host

Would like to understand if it is possible to migrate a Lubuntu guestOS image from Oracle VirtualBox 4.3.26 hypervisor to VMware VMplayer 7.1, where the hypervisor is running on a Windows 7 64-bit ...
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9 views

VirtualBox command-line - setting up port forwarding

I know how to configure NAT-based port forwarding using the VirtualBox graphical interface (as in the example below). How can I do the same via the command line?
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2answers
40 views

Open raw drive without formatting

I have a disk from a laptop that died. The disk is functioning correctly and not broken, but it is in RAW file system format and I cannot open it from windows. I have tried mounting it in a virtual ...
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1answer
26 views

VirtualBox broke Fedora networking - how to fix it?

I was trying to install VirtualBox in my Fedora 21 machine. However, the cited machine has Secure Boot enabled and obviously VirtualBox startup failed miserably due to lack of signing in its modules. ...
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0answers
28 views

VirtualBox port forwarding not working (HTTP: no, ssh: yes)

I have VirtualBox 4.3.26(newest as for now) in Win7, and a guest CentOS7. I enabled port forwarding for SSH and HTTP I can ssh into guest from host use putty by ssh 127.0.0.1:2222, but I cannot ...
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1answer
43 views

Setting up complex network in VirtualBox

Prior to physically setting up a number of servers to run Linux, I would like to set it up in VirtualBox or similar software first. All of the instructions on setting this up don't explain how to do ...
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61 views

virtual box 4.3 installation error in windows 10 technical preview

When I try to install oracle virtual box in windows 10 technical preview, it smoothly till it gets to the point where it starts to roll back and then shows something like "Virtualbox ended ...
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21 views

Host OS Connection problems after VIrtual Box Installation

I just installed Virtual Box in my Windows 8.1 PC, with Debian as the guest OS, and using NAT for internet connection. The problem is that after that, my Host OS has been having trouble connecting ...
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2answers
28 views

Oracle virtualbox not allowing than one CPU - Hardware virtualization not available

I have the following hardware configuration: Processor: AMD FX-8120 (Zambezi) Board: ASUS M5A88-M OS : Windows 8.1 RAM : 4GB DDR3 I installed Genymotion which created a virtual machine for ...
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29 views

Connect to Vagrant (VirtualBox VM) over local network

Hi I'm running a local webserver using vagrant virtual machine. I Normally set the following config line to private network which lets me connect from my host pc using the ip specified ...
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34 views

PC Not Booting After ACER Logo

My ACER Aspire E5-521-238Q running Windows 10 Build 9926 won't boot. I see the ACER: EXPLORE BEYOND LIMITS and the loading thing and then the PC is on, but has a black screen. When I press Alt + F10 ...
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24 views

Virtual Machine freeze when memory low

I run an Ubuntu 64bit virtual machine (4 CPUs, 8Gb ram, 1Gb swap) on my Windows 8 64bit machine using virtualbox. I often find that when I do something memory intensive (generally only using 1 or 2 ...
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12 views

Connecting to the Host and Internet from an Internal Network in VirtualBox

In order to simulate a network, I have 3 VMs set up in VirtualBox called VM1, VM2 and VM3. They each have 2 network interfaces all of which can ping the others at the moment. The Network interfaces ...
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1answer
27 views

Networking for CentOS 6.6 on VirtualBox

I have created 2 guests with 2 Network interfaces each - all 4 of which have the "Attached To:" set to "Internal Network". The aim is to create a simple internal network with no access to the Host ...
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0answers
17 views

Virtualbox switch from SATA to SCSI

I am trying to switch from using a SATA controller to using a SCSI controller (Porting VM to vSphere, no SATA support :( ) I removed the SATA controller, adding the SCSI controller, and connecting ...
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0answers
30 views

Windows 10 virtual machine disappears in seamless mode in Arch Linux

I have Arch Linux (64-bit) and I installed 32-bit Windows 10 in VirtualBox. Everything seems to work fine—fullscreen, scaled, etc…—except for seamless mode. When I activate seamless mode, the virtual ...
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1answer
61 views

Windows 10 technical Preview Key Not Working

I am trying to install Windows 10 technical preview on VirtualBox and it requires a product key. I used the default key NKJFK-GPHP7-G8C3J-P6JXR-HQRJR. It says it could not be verified. Any ideas? ...
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0answers
18 views

VirtualBox only creates new virtual hard disk when there is enough space on 'C' drive

There are >200GB free on my 'F' drive but it failed to create a fixed-size VHD with size = 200GB. Failed to create the hard disk storage C:\Users\abc\VirtualBox VMs\OSOS\OSOS.vhd. Could not ...
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0answers
27 views

Kali Linux Unable To Boot; Booting Kernel Failed Invalid Argument

I am trying to install Kali Linux on VirtualBox. After going to the Boot Menu when I press install or graphical install it goes to a screen and in the bottom says Booting Kernel Failed : Invalid ...
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93 views

Increase resolution to 4K in VMware or Virtualbox

I Have a laptop with 4K (3860x2160) Display , But here is a lot of dumba$$ problems.A lot of software's is not compatible with 4k resolution. Also VMware Workstation and VirtualBox doesn't support 4K ...
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1answer
25 views

How to reliably set up communication between the VirtualBox guest OS and host OS?

I have a VirtualBox (Windows 8 guest on a Windows 8 host) with NAT networking set up. I would like to set up the guest system to emit Growl messages that would be picked up by a service on the host. ...
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14 views

vagrant up from file schema is failed

I created vagrant box and put to windows file server. I do vagrant init and up.But vagrant up failed on windows command line bellow. Why failed? Vagrant do not deal with file url schema? ...
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15 views

Oracle VM VirtualBox Win 7 Data Recovery

So I'm running Oracle VM VirtualBox with a Build of Windows 7 Ultimate, and the virtual guest OS just crashed out of no where, and won't allow me to access my windows guest os. I wanted to know if ...
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20 views

VM crashing on installation in VirtualBox

Installing Ubuntu 12.04 server amd64 on VirtualBox 4.3.26 on OSX 10.10 I select the language then select the default install option, and, after a split second of text scrolling by, the whole VM ...
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27 views

Error installing Ubuntu on VirtualBox

I'm trying to install Ubuntu 14.04.2 (x86 and amd64, both fail) on VirtualBox 14.3.26 on OSX 10.10 and I'm getting the following error: [ 0.000000] Fast TSC calibration failed.] Strangely, I was ...