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

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VirtualBox 100 percent CPU usage

I have MacOS as the host (El Capitain) and Windows 7 as a guest - however the CPU rises up to 105 %, even when it is idle. I have searched the web, eventually found this thread here on SU, but have ...
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315 views

X Server unable to start under Linux 4.5 in Arch virtual box guest

I recently ran paceman -Syu to upgrade my system as usual but after installing the newest Linux kernel, the X Server could no longer start and produced this error in the log file AddScreen/ScreenInit ...
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567 views

Using a Parallels Hard Disk image in VirtualBox

The question has been asked before, but there appear to be no current solutions. I have a current version of Parallels 11, and a current version of VirtualBox 4.3. I have an existing Windows image in ...
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95 views

How to enable OpenGL 2.0 support on a Windows guest on VirtualBox

I am trying to run some games on Steam (specifically Dota 2 Reborn) on a Windows 7 64 bit guest under VirtualBox running on a Fedora Linux 23 64 bit host. I have enabled 2D and 3D acceleration on the ...
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1answer
42 views

BSOD whea during Virtualbox installation

With Windows 7 or Windows 10 64-bit, I always had Virtualbox installed on this computer. A few weeks ago, I format and reinstalled Windows 10 64-bit from scratch (the previous Windows 10 installation ...
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2answers
33 views

How do I get gedit to open VirtualBox?

I've downloaded VirtualBox and am receiving this message: Could not open the file /home/mike/Downloads/vir...16-105871-Linux_amd64.run. gedit has not been able to detect the character encoding. ...
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22 views

SSH into a VirtualBox VM that was configured via command line

I am trying to set up a cluster of VMs on my Ubuntu laptop so that I can test some distributed code. My goal is to execute a shell script that will spin up the configuration and another script to tear ...
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1answer
27 views

How to specify compiler for VirtualBox guest additions installation?

I'd like to be able to use a specific version of gcc to build VirtualBox 5.0.16 guest additions inside an Ubuntu 14.04 guest in order to avoid errors. VBoxLinuxAdditions.run --help doesn't give any ...
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11 views

virtualbox bridge networking require router

I've set up Win7 host and multiple XP guests using bridged networking for a specific reason and found an interesting behavior: while all bridged guests don't require host's ethernet wire to be ...
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22 views

Windows 7 Virtual Machine running off SSD on VirtualBox Lubuntu

I downloaded the Windows 7 OVA from https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/linux/ I imported into Virtualbox, set the storage to be a fixed 4GB on an external SSD, and when I ...
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1answer
32 views

connection refused for vagrant ssh

I am having trouble connecting to my vagrant box using vagrant ssh. There are no error messages when running vagrant up, I can also connect directly using the VirtualBox ui. When I run vagrant ssh I ...
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49 views

Virtual box bridge networking stop working

I'm using VirtualBox running at Win XP and guest Linux OS Fedora 16 with bridged networking (eth4). It's was working without problem for ages regardless static or dynamic addresses via DHCP (manually ...
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1answer
21 views

Vagrant VM connect to remote host

I have a Vagrant VirtualBox VM running Debian Linux. I want to connect from inside the VM to another host on my private network (say, 192.168.25.111). My network inside the VM looks like this: $ ...
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20 views

no bootable medium found system halted windows 7

I am using windows 7 64bit. I need to create one more windows and i have to work on IE10. Basically my need is, i have IE11 but i need to work on IE10. for this, i have installed Virtual Box and i ...
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1answer
29 views

Can a virtualbox drive be larger than total free space on HDD?

I would like to install Windows 10 in a virtualbox within Ubuntu. Unfortunately the total free space I have on my HDD is only ~15 gb. Is this possible to do, given that the windows OS takes up way ...
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27 views

Virtualbox display driver for Windows 10 only allows 4:3 aspect ratio

1024x768 and 800x600 are the only possible settings. Ubuntu and Fedora both seem to behave this way. So I installed the Extension Pack, which unfortunately had no effect. Is there something else I ...
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2answers
97 views

Can Virtual Box/VMware infect the host PC when testing Cryptolocker?

Can cryptolocker encrypt the host PC if I test it on a Virtual Machine? Currently I am using 'NAT' as my network type or whatever...
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44 views

High packet loss after Windows 10 goes to sleep with VirtualBox installed

I just upgraded my desktop to Windows 10 (fresh install) and I was experiencing some pretty bad network performance. Ping was showing roughly 30-50% packet loss (Request timed out) so I decided to ...
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29 views

What is Ethernet adapter VirtualBox Host-Only Network?

I am using soundwire. I want my android phone to be able to contact my PC. The PC however, display a different IP that is not the IP that my phone should connect to. So basically soundwire detects ...
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11 views

ClouderaVM in 2 Different Machines are not Pinging Each Other

I am using cloudera-quickstart-vm (VirtualBox) in 2 different systems with bridged mode of networking to implement hdfs (in a distributed manner). Host System: Windows 7 Guest OS: CentOS 6.5 ...
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1answer
42 views

Problems with virtualbox ubuntu

I'm trying to get a Ubuntu VM running on my Win 10 machine . I don't have much experience with this (did it once a few years ago on a different machine, and didn't have any problems), and I'm not ...
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10 views

VirtualBox Disk Image (VDI) is larger than content but --compact doesn't work

I have a dynamic VDI image with 12 GB of data: Filesystem Size Used Avail Use% Mounted on udev 2.0G 4.0K 2.0G 1% /dev tmpfs 404M 1.1M 403M 1% /run /dev/sda1 ...
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2answers
115 views

Curl response hangs

I have a site set up in a virtual box. I am able to access it just fine from a browser on my machine, but I have trouble accessing it via CURL while SSH'ed in to the box. When I try, curl hangs ...
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28 views

VirtualBox can't start any VM

I have VirtualBox v.5.0.16 r105871 running on Windows 7 Professional x64. And it can't start any virtual machine (I've tried Win7, WinXP, Ubuntu). I get same errors: And then: The only thing I ...
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55 views

xkb key remaps not applied in virtualbox

running Ubuntu 14.04 (xfce) I have the following problem: since my left arrow key is broken, I remapped it to PageUp (prior) and PageUp to right shift, by modifying /usr/share/X11/xkb/symbols/pc. ...
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1answer
31 views

Are there advantages to EFI for Linux guest in Virtualbox

I want to install guest Linux (Arch Linux to be exact) through Virtualbox. Virtualbox has optional EFI support, I'm wondering if enabling it provides any pros for linux guests or not.
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69 views

Two network cards, one directly to internet, other in LAN

I need some insight in my thinking so that I don't do something completely stupid. I have two physical network cards on my computer, one card/interface offers a handful of services and the other is ...
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58 views

Troubleshooting Virtualbox shared folders as it relates to Linux headers/kernel

Trouableshoot Host: Windows 7 Guest: Debian Linux Tried: Installing Guest Additions, installing headers, re-installing headers, installing DKMS, creating vboxsf group/users Problem: Guest ...
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2answers
67 views

Error SSH to a Centos 7 VM (Host-only)

I have the following setup: Host System: Debian Wheezy VirtualBox System: Centos 7 Network Adapters: NAT and Host-only On the host system I can "ping" the VM machine, when I try to ssh I get the ...
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1answer
46 views

Windows 10 VirtualBox - Ubuntu 14.04.4 disk space capped at 1GB

I have a Windows 10 machine, with VirtualBox v5.0.16 r105871 installed. Over this, I am trying to host an Ubuntu 14.04.4 OS so that I can install and run the Robot Operating System (ROS). Here are ...
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1answer
10 views

Use Host VPN in Guest VM

I have a host Windows 7 OS running a guest Lubuntu OS in VirtualBox and I'm trying to configure it so that the Guest OS will use the Host VPN. So a couple quirks, when the VPN is turned off the guest ...
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1answer
76 views

Moving an OS from a virtual box to the hard disk

I want to install arch linux on my laptop which currently has Elementary OS in it. I was wondering of it is possible to setup the arch linux in a virtual box and when I'm satisfied with its ...
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29 views

How to network between two Ubuntu VM's, then bridge VM1 to local machine, without VM2 having direct access to network?

I am trying to complete a lab for one of my networking classes, and I think I need some assistance on a rather specific issue. I have two virtual machines: VM1 VM2 (Both running ubuntu 14.04 And ...
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1answer
321 views

Install Virtualbox on Linux Mint 17.3 with upgraded kernel 4.4

Fresh Linux Mint 17.3 install on a Thinkpad T460. Upgraded kernel from 3.19 to 4.4.0-15 to get WiFi working. Now can't get Virtualbox to run. I need Virtualbox to run Vagrant. Error! Bad return ...
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39 views

Cannot connect to VirtualBox internal network

I have been trying to connect two virtual machines on VirtualBox via the internal network that they have. I have done a fresh install of Ubuntu 14.04, and i have set up the DHCP server using the ...
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34 views

Can't launch Win 7 image from Windows 10 (“T-x is not available”)

I'm running Windows 10 enterprise 64-bit on a i7-5600U processor and try to launch a Windows 7 image in Virtualbox. I have chosen a 32 bit version of W7, as there was no option to select a 64 bit ...
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2answers
21 views

Use network adapter for VirualBox only

I currently have to set up a virtual machine to a public IP. I'm using a second Ethernet adapter for that. That adapter is directly connected to the wall socket with the public IP. Here's the thing: ...
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43 views

How do I copy and paste text from Mac Host to Ubuntu Guest in VirtualBox?

I cannot copy and paste text from my Mac (host) to my Ubuntu Server (guest) in Virtualbox. Solutions I tried: Enable Bidirectional in Advanced Settings for "Shared Clipboard" and "Drag'n'Drop". ...
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27 views

VirtualBox Seamless view

I've a brand new Fedora 23 Host that run VirtualBox 5.0.16 My Guest is Windows 7 64Bit. My setup is a laptop in docking station with another external screen. No matter how much I tried, I could not ...
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44 views

VirtualBox natnetwork start failed

I use VirtualBox 5.0.16_Ubuntu, Ubuntu 16.04. When I added a new NAT network and try to start natnetwork service, I got some error: ~$ VBoxManage natnetwork add --netname openstack --network ...
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2answers
187 views

convert El Capitan .app to .dmg

I want to install El Capitan in VirtualBox on my Mac already running El Capitan. I found a tutorial on installing Yosemite in VirtualBox on a host running OSX Yosemite here. The first thing was to ...
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1answer
22 views

Fedora failing to install on VirtualBox in Mac OSX

I'm trying to install Fedora on VirtualBox on my MacBook. I set up a VDI drive from the selection list and allocated 20gb hard drive space and 4gb of ram. Boot up the machine and load from the Fedora ...
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19 views

Virtualbox shared folders performance issues

I use Virtualbox for development and I share the codes between guest and host but this seems to cause performance gaps. What is a better alternative in stead of shared folders?
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1answer
714 views

Virtualbox won't start after recent windows 10 update

After upgrading to Build 14295.rs1_release.160318-1628, virtualbox won't start. Got this in the Event Viewer: (1): Faulting application name: VirtualBox.exe, version: 5.0.16.5871, time stamp: ...
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1answer
45 views

Git GUI on Windows not seeing .git folder from Samba share

THE SCENARIO I am using Vagrant,Windows environment and running Ubuntu inside the virtual box for my development work. I have setup an instance of Samba server and I run the I access the virtual ...
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60 views

PPTP VPN connection in a (bridged) virtualbox Kali Linux 2.1 VM

im a relatively new user to linux and virtualization software such as virtualbox, so im kind of confused as to how to configure my networking settings for the vm im using (kali linux 2.1), my host OS ...
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17 views

Error 0xc000035a when installing Windows 7 on VirtualBox [duplicate]

While installing Windows 8 on VirtualBox I got a strange error Error code 0xc000035a File:windows/system32/winload.exe How to proceed further ?
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19 views

What steps should I take after setting up an OS on a VM to be able to native boot it?

Right, so I downloaded the windows 10 ISO file, and have it installed on a external hard drive; I can run it from virtual box, but that's inefficient because you have two operating systems running, ...
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49 views

Is it possible to create a swap file for a Linux guest VM managed by Vagrant?

In my Vagrantfile I have the following provider defined: Excerpt from Vagrantfile: config.vm.provider :virtualbox do |vb| vb.gui = false vb.customize ["modifyvm", :id, "--memory", "4096"] end ...
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10 views

Run another Boot sector in a vm?

Most (if not all) V.M. engines that I have seen require that I'm using an ISO or other format and will not allow the use of separate boot sector on a separate drive. Admittedly, I'm a bit of a N008 so ...