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

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Xamarin Android Player -> VirtualBox -> IISExpress Hosted Local API Connection

I'm trying to work out what configuration steps I need to perform in order to get this working. The goal is that my Xamarin Android Player virtual device running in VirtualBox can connect to the API ...
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VirtualBox: How much disk i/o speed gain will I gain if I have fixed-size hdd image?

I am running virtualbox on win7 with a dynamically allocated hard disk image. It seems to consume a lot of CPU and be slow on hdd activity. I've heard that not choosing a dynamically sized virtual ...
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9 views

VirtualBox shared folders returning file not found when loading over HTTP

Hi I have a VirtualBox image which I am starting with vagrant and mounting two shared folders. The folders mount without a problem and are visible when I SSH to the guest machine, but when I try to ...
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How to configure user -> OpenVPN -> Tor -> OpenVPN with Whonix

My question is as follows: I have host OS windows 7. What i want to configure such a connection: Host (with OpenVPN connected) - > VirtualBox - > Whonix-Gateway with Whonix-Workstation or with any ...
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Duplicate Displays on Virtual Box

I'm running Kodibuntu (xbmc/Kodi) 14.0 64-bit on Virtual Box (VB). The Host OS is Windows 8.1 64-bit. I have one 1920x1080 monitor (DVI) and one 1920x1080 TV (HDMI) in another room connected to my ...
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1answer
20 views

Old VirtualBox version shows as Up-to-date

I'm running Virtualbox 4.3.18 on Windows 7. When I try to update VirtualBox shows that it's up to date, while the latest version is 4.3.28. https://www.virtualbox.org/wiki/Downloads I'm trying to ...
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41 views

How to recover the Linux VM after accidentally deleting all root folders?

I have a CentOS Linux VM running in VirtualBox. I wrote a bash script to do some automated tasks. But I accidentally deleted all root folders because I put a line in the script rm -r $my_dir/* ...
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Can I connect to an external-HDD-based Hyper-V VM from any computer?

If I create a VM on an external HDD using Hyper-V, and now want to connect to it from a different computer using Hyper-V on that second computer - Can that be done, or might that corrupt the VM? If ...
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Production plan for Two Simultaneous OS in one VirtualBox?

I have not found any public plans about having two OSs in one VirtualBox. Is there any news about having the feature of running two OS instances inside one VirtualBox?
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23 views

How to use Window Manager of Linux inside VirtualBox?

I have the same problem in Redhat Linux and Debian Linux. I cannot use the normal switching between windows. I mean this square window manager: I tried all keys CMD, ALT, CTRL, FN and SHIFT and ...
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2answers
51 views

How to create a virtual machine from a bootable USB?

I need to take a live USB, that has Ubuntu 12.04 and a ton of customization on it, and create a virtual machine in Virtualbox from it. I ultimately actually want to get this installation up to Google ...
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1answer
29 views

How To Access DNSSEC DNS Server 127.0.0.1 On Mac OS X Host, From VirtualBox Guest Windows XP?

How To Access DNSSEC DNS Server Listening On 127.0.0.1:53 On Mac OSX Host, From VirtualBox Guest VM Windows XP Prof 32-bit ? My host/physical computer machine is an Apple MacBook with Mac OS X ...
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22 views

Windows 10 64 bit OS on Oracle Virtual Box

Did an update to version 5.0 virtual box today and got this error msg NtCreteFile(\Device\VBoxDrvStub) failed 0xc0000034 STATUS_OBJECT_NAME_NOT_FOUND. How do I roll back to 4.38 version or fix the ...
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1answer
27 views

virtual box guest OS randomly freezes or crashes at login screen

I am struggling to use virtual box with debian stable (jessie) as guest OS under windows 8.1 as host OS. The installation of debian was simple, but logging into the guest OS is causing lots of ...
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29 views

One virtualbox linux machine act as router the for second virtualbox machine

I have 2 virtualbox machines setup with debian. The first one has 2 network adapters: NAT and Internal Network, the second one has only 1 network adapter: Internal Network. On the first one I have ...
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1answer
14 views

How to config proxy in Ubuntu on VirtualBox

All: I am new to virtualbox. I install virtualbox on a WIndow7x64 box(IP: 45.37.2.38, Mask: 255.255.255.0 Gateway:45.37.2.1) which is behind office's proxy, inside virtualbox, I install Ubuntu 14.04 ...
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1answer
26 views

Virtualbox guest additions completely breaks graphics on Windows 10 preview

Facing the issue with latest Virtual Box 4.3.28, VM of following config: intel i5 vPro 2 cores. 2800MB RAM 3D & 2D acceleration enabled, 256MB graphics memory. 25GB storage(Fixed size, Not ...
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2answers
21 views

How to configure Virtualbox to assign a separate mac address to the vm?

I have Kali linux running on Virtualbox and I have used bridged network mode to assign separate IP to the virtual machine. The problem I'm facing is that on my server when I arping the vm, I see my ...
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1answer
10 views

Customize and sysprep modern.ie virtual machines say for VirtualBox?

Has anyone done this or know if possible and the steps? MS has VMs for testing IE on modern.ie site. They're clean base images one extract and imports into VM software of choice like VirtualBox to ...
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9 views

Eclipse on new VM cannot download stuff, why not?

I copied eclipse into a new VirtualBox CentOS 7 virtual machine from another computer, but how do I get it to allow eclipse to download stuff from the internet? Here is the problem: Eclipse works, ...
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14 views

No Ubuntu login screen via TeamViewer using VirtualBox

I have a weird problem. I have got the following setup: Native OS: Windows 7 x64 SP1 (6.1.7601) running VirtualBox 4.3.28 r100309. I have a virtual OS which is Ubuntu 14.04 LTS which is running ...
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9 views

Cannot get pip working on Python 2.6 in Fedora 22 Virtualbox

I'm working on a project that must be tested in a Fedora VM with Python 2.6.6. I have successfully installed that (so I can use that instead of the default 2.7), but I need to install some packages ...
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Solved. Guest OS (Debian 3.0, 32-bit ) loads read-only file system immediately upon booting in VMware Workstation 10 (Host OS: Windows 7, 32-bit)

Issue Summary: A guest 32-bit Debian 3.0 virtual machine is opened using VMware. The guest OS loads a read-only file system on startup. Despite root access no file changes can be made to the virtual ...
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1answer
13 views

Ms-dos 6.22 not letting me save a file via edit program

I can't seem to save a file from the edit command on MS-DOS I have 3 directories: A B R I am running MS-DOS from VirtualBox (Could this be affecting it?) When I attempt to save the file on the A ...
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1answer
24 views

how do I copy large datasets between two VirtualBox virtual machines?

I have two separate CentOS 7 virtual machines running in VirtualBox that is installed in a Windows 8.1 host. How do I transfer large amounts of data from one of the CentOS 7 virtual machines to the ...
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1answer
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virtualbox mouse integration across VMs and host

What is the simple command for being able to let the mouse pointer seamlessly move between VMs and the host? This happened intuitively for a while, but now I cannot seem to find how to set it up. ...
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14 views

how do I clone an external drive to import into VirtualBox?

In a Wondows 8.1 installation, I can type the following to create a SATA controller which will pull the contents of a detached hard drive into a VirtualBox Virtual Machine: cd ...
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2answers
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How do you implement network separation between a physical host and a VM on the same device?

I want to have a machine running a VM on Hyper-V or VirtualBox. All traffic from the VM should go over a LAN connection (ideally with the physical LAN NIC restricted entirely to the VM and not ...
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1answer
35 views

How do I configure VirtualBox to launch a VM from an external drive?

What steps do I need to take in order to use VirtualBox to access a CentOS 7 installation that is on a detached hard drive? Here is the situation: 1.) CentOS 7 and Windows 7 were installed on a ...
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1answer
33 views

With Linux Mint as main OS, dual boot Windows 7 and have a Windows 7 virtual machine using the same Windows installation

I am about to install Linux Mint 17.1 (Cinnamon) as my main OS. I also want to be able to boot into Windows 7 occasionally. I also want to run a Windows 7 virtual machine inside Linux. Ideally I would ...
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1answer
16 views

VirtualBox claims a USB drive, but hosted CentOS 7 cannot access it

How can I get CentOS 7 to open a USB hard drive from within VirtualBox running inside Windows 8.1? I have VirtualBox installed in Windows 8.1 and I am using it to launch and use CentOS 7 within ...
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2answers
29 views

Virtualbox shared folder mounting not working

I have been trying to mount a virtualbox folder for some time now and keep getting mount: unknown filesystem type 'vboxsf' I have installed and reinstalled guest additions a number of times both ...
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26 views

Virtualbox NAT port forwarding not working

I am trying to forward Growl messages from my virtualbox windows guest to the growl notifier instance on my windows host. Growl runs on port 23053. Here is my network configuration. But I'm not ...
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1answer
125 views

How to Install Virtualbox on Windows 10 host?

I am trying to install virtual box v4.3.28-100309 on a Windows 10 Host. The windows 10 insider preview installed is build 10130. When I try to install the virtualbox exe I am getting the following ...
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CentOS screen resolution on VirtualBox

I still have the same issue, and I stuck here for 2 days. Background: Install CentOS 6.6(64 bit) on VirtualBox 4.3.28. Already installed Guest Additions. The mouse works pretty fine after GA ...
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VirtualBox sound drivers issues

I run DOS with old games under VirtualBox on my Windows 7 Home SP1 32bit machine through my Intel Core 2 Duo CPU installed. Windows uses default sound drivers provided by Microsoft (High Definition ...
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connecting to a wirelss modem with different ip addresses via virtualbox

there is a wireless modem in my university,any devices can connect to it and it will give them a single speed,for example when i wanna download sth that is tow parts i download one part with my laptop ...
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1answer
24 views

VirtualBox - Two guests can't ping each other

I've selected bridged adapter option in virtualbox. I am able to ping from Machine 1 (WinXP) to Machine 2(Linux) and get a response, but I am not able to ping vice versa. I need to connect from ...
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1answer
28 views

Maximizing Window for Virtual Machine in VirtualBox

I installed VirtualBox 4.3.28 in Windows 8.1 and am running CentOS 7 within it. But the problem is that VirtualBox is placing a size limit on the frame within which CentOS 7 is visible. Here is a ...
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Change default network settings for VirtualBox when using NAT

I'm running into an issue where VirtualBox is assigning a guest from 10.0.2/24 when using NAT mode. The problem is its a real network on this site. I see how to change the setting for a particular ...
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1answer
44 views

Installing 64 bit CentOS using VirtualBox

I downloaded VirtualBox to a windows 8.1 machine by selecting the Windows (32-bit/64-bit) installer option at this link on the Oracle web ste. But when I try to create a new Virtual Machine using ...
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1answer
20 views

Windows 8.1 Virtual Machine pointing to CentOS 7

How do I set up a virtual machine within windows 8.1 pointing to a CentOS 7 installation which I would like to install on the same physical box? I have been encountering all sorts of problems ...
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1answer
24 views

Move physical Snow Leopard installation into VirtualBox

I've got a physical installation of Mac OS X 10.6.8 (Snow Leopard) happily running on my MacBook Pro. I want to move this install (not install a fresh copy of OS X and moving my data, move the extant ...
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1answer
17 views

Failed to create the shared folder

I'm getting this error message in VirtualBox when trying to create a shared folder: Failed to create the shared folder D_DRIVE (pointing to d:\) for the virtual machine test-vm. Shared ...
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20 views

Can not open REMnux after importing the .ova file in VirtualBox

I want to install REMnux. Therefore, I have installed the REMnux virtual appliance file from https://remnux.org/. But when I start REMnux (after creating the VM) then nothing happens. I see only a ...
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2answers
105 views

Stopping a Windows Update KB3045999 from installing indefinitely on Windows 8?

I have a Windows update I would like to stop from installing. Every day I come back into my office and Windows Update has re-installed it, and every day I uninstall it. It's getting to be kind of ...
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2answers
24 views

unable to connect to virtualbox machine via ssh

Normally with SSH if you do "telnet localhost 22" you'll get something like this back: SSH-2.0-OpenSSH_6.7p1 Ubuntu-5ubuntu1 At that point the client is supposed to send something similar back and ...
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1answer
18 views

Accidentally restore a VirtualBox VM to a snapshot

I never made a snapshot of my VM before. Accidentally, I restored it from the current state to the original state (the first snapshot it made automatically). Is there anyway to go back to my LAST ...
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1answer
27 views

How make Debian wait for all VirtualBox guests to stop during shutdown/reboot?

I am using the vboxautostart-service to start all my vms on system boot (Debian 7), they've been configured with this command: VBoxManage modifyvm '<vm-name>' --autostart-enabled on ...
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1answer
39 views

Run custom command instead of browser when clicking http(s) links

I am running a Fedora desktop with virtualised Windows 7 for certain programs that are needed for my daily work. One annoyance is that links in programs try to open with the default browser inside the ...