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

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Virtual machines, TRIM, spares files

Assume the following: I have [an SSD with] a host file system (FS) and a host OS. The virtualization software uses a file on the host FS as storage for a virtual machine (VM) disk image. The guest OS ...
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1answer
30 views

Why is Virtualbox start mode not detachable by default

Virtualbox has three start modes: normal (with a window for the VM but window cannot be closed) headless start (no window for the VM, but you can see a screenshot in VBox UI) detachable start (a mix ...
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4 views

Geting wrong permissions error using existing VDI in VirtualBox

I'm using the exact procedure here, but I'm getting the error shown below. I created the Ubuntu 15.10 VDI as a guest in Windows 10 (where it launches fine). I'm trying to use it in a VM in Mac OS. ...
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18 views

VirtualBox (5) - Make guest see VDI as USB stick?

I am using VirtualBox 5 on Windows 7 as my virtual machine program of choice. I am running a linux program on it, but it requires to save on USB stick (program written by my friend, who i lost contact ...
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1answer
22 views

Send media keys to VirtualBox

I am running Linux Mint. I am an Apple Music subscriber, so I had to find a way to install iTunes. I opted to install Windows 7 in a VM. (Windows 10 had issues with VirtualBox's seamless mode). The ...
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26 views

How come I cannot use a VMDK disk on with a Windows 7 guest on another machine

I am a bit baffled about what I just tried to do. I have a machine running Windows 8.1. I have VirtualBox installed. Let's call this MACHINE-A. On MACHINE-A I have a VirtualBox Guest that runs off ...
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17 views

Missing Bluetooth Controller Transport while trying to boot to the installer

im trying to install yosemite on virtual box, But I get stuck at Missing Bluetooth Controller Transport while trying to boot to the installer and I ran these commands using the -s -v -x boot flag: ...
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6 views

How to obtain the proxy resolver configuration of a Virtualbox VM

Virtualbox provides two configuration flags to modify the DNS behavior of the NAT engine for a virtual machine: VBoxManage modifyvm "VM name" --natdnsproxy1 on VBoxManage modifyvm "VM name" ...
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201 views

Windows 8.1 VirtualBox: Mouse cursor is black ugly graphics-error style box

I have installed Windows 8.1 on VirtualBox on Ubuntu 14.04. It works, however I have a problem with the mouse-integration feature of the guest additions (4.3.24). Whenever, the pointer transforms ...
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1answer
3k views

How to launch multiple instances of VM image in VirtualBox?

I would like to configure a machine image with all the bells and whistles and then be able to launch multiple instances of it in VirtualBox. However, it allows me to launch only a single instance of ...
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1answer
3k views

Can't install Windows Updates - Error Code 800706F7 (No KB3004394 update installed)

Since the turn of the year, my PC hasn't been able to install any Windows Updates. It comes up with the following error 800706F7. Searching around suggests it's to do with the Windows Update KB3004394 ...
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26 views

Can't boot my VirtualBox VDI — messed up storage setting

I messed some storage setting up in the VirtualBox GUI, and now I can't boot my VDI. I tried just creating a new VM and using the existing drive. That didn't work either. I get: This is what my ...
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20 views

Virtualbox: Unable to SSH to guest from non-local network

I have virtual Ubuntu server hosted by Virtualbox. The virtual machine is using bridged interface. (The VM must have spesific IP so I use bridged interface.) The virtual machine is on network ...
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0answers
15 views

Connect to VirtualBox RDP from Chromebook

I'm trying to connect to VirtualBox running on Ubuntu 14.04 from a Chromebook. I've got VirtualBox configured and can connect to its Remote Desktop display using remotedesktop on the Ubuntu machine. I ...
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0answers
13 views

Virtual disk on external drive — VDI or raw?

I plan to keep an Ubuntu work environment on an external SSD and take it back and forth with me between home and work. I'd like to run it in VirtualBox rather than boot directly into it on each ...
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33 views

Mac running El Capitan, fully patched, VirtualBox 5.0.10, Windows 7 guest won't boot

I upgraded my Mac to El Capitan and ever since then, my Windows 7 guest running in Virtual Box will boot but after about 3 minutes it hangs. I move the VMDK over to a Windows PC which also has Virtual ...
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1answer
20 views

Using modern AMD chips with Vmware and Virtualbox

Looking to build a cheap PC and then install VMWare workstation and Virtualbox to create some operating system virtual machines. Do all modern chips work with VMware and Virtualbox, or do they need ...
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2answers
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Is there any performance difference between the VMDK and VDI virtual disk formats with Virtual Box?

In virtual box 3.0.2 is there any performance difference between using the native VDI virtual disk format and the VMDK virtual disk format?
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5answers
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SSH from one Virtual Machine to another in VirtualBox

I am trying to run a server on one VM and a client on another; both VMs have ScientificLinux 6.4 as their OS, running on VirtualBox 4.2.10. The client should be able to communicate with the server ...
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18 views

How can I recover the files on an SDXC flash card from a suddenly dead Galaxy Note 2?

I am trying to recover the files on an SDXC card (SanDisk 64GB) that was in a Galaxy Note II. The Note 2 itself died suddenly, and it doesn't seem recoverable. Rather than seek another Galaxy just to ...
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0answers
36 views

Is it possible to install Bluestacks on a xenserver Windows 7 guest?

I have xenserver tools installed on my Windows 7 guest but when I try to install Bluestacks it says it can't recognize my GPU and I should update it, but my physical server doesn't have a GPU. Also, ...
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26 views

Boot Virtual Box From USB

Using Lubuntu can you boot Virtual box from an external USB hard drive? I have a hard drive with a fully operational windows 10 installation on. I would like to be able to mount this drive in ...
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7k views

How to revert a snapshot in VirtualBox

I made a snapshot in VirtualBox, how do I revert back to it?
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0answers
23 views

USB device cannot be stopped

So I believe this device may be completely irrecoverable, but I want to know what you guys think. My memory about what happened isn't great but I can provide details. I have a 120 GB SSD inside an ...
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9 views

Windows guest doesn't see usb printer

I have Vbox setup in Slackware host running windows 7 guest. I have installed guest additions and extension pack. Both are Version 5.0.14. The guest can see no usb activity and I can't add usb devices ...
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9 views

Kali Linux Fatal Error

I tried booting Kali Linux (latest version) in Virtual Box. Every time I try I get this error: http://imgur.com/IZks91F Here is the log file: https://ghostbin.com/paste/jvsm8 I have Virtualization ...
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19 views

Virtual Box wont let me run Win PE

I created a custom Windows 7 install from this instruction set: http:// ...
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2answers
83 views

Any Way to Pass Media Keys Through VirtualBox

I have Linux inside a Virtual Box on a Mac. Whenever I press the "Play/Pause" media key, even if I'm inside the Linux VM, the Mac iTunes app opens. This makes it impossible to use media keys inside ...
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4answers
4k views

Sharing internet connection from host to virtualized Ubuntu with Virtual Box

I have Ubuntu 11.10 in Virtual Box installed on Windows Vista. I am having a Broadband(PPPoE) internet connection. I would like to use my internet connection inside Virtual Box in Ubuntu. I tried with ...
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16 views

Linux VM DNS stops working when host connects to Cisco Any connect

I have a Linux (Xubuntu 14.04) VirtualBox VM inside a Windows 7 host. I have the network set up as NAT (and bridged is not an option) and I also have a host-only connection. When not connected to my ...
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1answer
5k views

VirtualBox NAT over proxy

I use VirtualBox 4.1.8 on a Ubuntu 10.04 host system. I have an HTTP proxy server on the host system. How do I configure the VirtualBox to NAT the virtual machine's network and use the HTTP proxy for ...
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1answer
8k views

How to Use a Shared Folder in VirtualBox with AndroVM

I'm trying out AndroVM and cant figure out how to access a shraed folder with VirtualBox. The instructions say it needs to be called mysdcard, which I did. But I can't find it in the android. What do ...
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To creat static IP for my HDP 2.3 machines

How do I create static IP for my HDP 2.3 running on different machines and virtualbox? I have enabled a dhcp server adapter but when I execute ifconfig I see that both my HDP instances on both ...
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Can't install Windows 98 SE in virtualbox - SUWIN caused a General Protection Fault in module <unknown>

I get this error when installing Windows 98 Second Edition on virtualbox. my host is Mac OsX. the guest settings are the following: Base memory: 64 MB Boot Order: Floppy, Optical, Hard Disk ...
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1answer
24 views

Deleting Snapshots in VirtualBox

I created a snapshot, in VirtualBox (VBox), and then found it in my HDD. So I deleted it in the folder structure. I saw it was still there when I opened VBox, so tried to remove it but got an error. ...
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1answer
37 views

host win10 can ping guest centos6 but centos6 cannot ping win10?

I use Wifi at home and my Virtualbox network mode is bridge adapter + promiscuous centos 6 network information is Winows10 can ping guest centos6 and I can use secureCRT to conncet to ...
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3answers
8k 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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5 views

VBoxManage creating file in wrong directory

Hey there I'm using vagrant to set up some test boxes however I don't want any of the files to be on my main disk. I've changed $Vagrant_Home to be off disk however VBoxManage is still creating files ...
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2answers
9k views

Mouse pointer not captured in virtual box

I've installed android x86 into my windows 7 OS via virtual box. Though I can see a small window saying "The Virtual Machine reports that the guest OS supports mouse pointer integration. This means ...
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1answer
3k views

Problems using .cab with every installer

Using several installers, I get errors related to missing .cab files: The cabinet file 'product.cab' required for this installation is corrupt and cannot be used and The cabinet file ...
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1answer
96 views

Virtual machine GPU passthrough with Windows 7 as host

Is it possible to do that with VMware or VirtualBox? I want to have Windows 7 as a host OS and Windows 7 or Windows 10 as a guest OS. I've seen a few guides, but they all assume I use Linux as a ...
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0answers
8 views

Can I install x64 vagrant system via virtualbox in virtualbox machine?

I have main OS Windows 10 and install VirtualBox machine with Ubuntu 14.04 where I want install vagrant with centos x64. Is it possible? I try it but I got vt-x is not available (verr_vmx_no_vmx) ...
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2answers
3k views

Steps to make native boot vhd boot in virtual box

Apologies in advance if this has been previously discussed, I did my best attempt at searching and could not find what I was looking for. My issue is that I have a windows 8 vhd I want to update to ...
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1answer
30 views

Virtual machine running a *newer* linux kernel?

Is it possible to, for example, have the main system be Ubuntu 15.04 and install a virtual box that runs Ubuntu 15.10 inside of it? Or does the host system have to have a Linux kernel that is at least ...
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0answers
30 views

Can't type capital letters in virtual machine over TeamViewer

I have a computer that I access remotely using TeamViewer. The remote computer is running Linux Mint 17.2, and my local computer is running Windows 10. On this remote computer, I have several VMs I ...
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1answer
37 views

blues screen after clonning windows xp

I clone a hard disk of a PC, with clonezilla. This hard drive was only a partition with Windows XP. After restore the copy virtualbox but when I boot the OS a blue screen appears saying: "run chkdsk ...
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1answer
3k views

Configuring Virtualbox to use an authenticating proxy

I have a couple of Virtualbox VMs (ubuntu guest) running on a windows 7 host, but internet access is through an authenticating proxy with a self signed certificate. Configuring this for just one of ...
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1answer
6k 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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4answers
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VT-x/AMD-V hardware acceleration not operational with VirtualBox

I am trying to install OS X with VirtualBox, on my Windows 7 laptop. I see the following error message: VT-x/AMD-V hardware acceleration has been enabled, but is not operational. Certain guests ...
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1answer
5k views

With Centos 7 as a Virtualbox guest on a Mac Host, how can I change the screen resolution of the console / command line?

I am using the minimum install of CentOS 7 with command line access only (no graphic support installed). After spending hours reading online about editing grub files, installing guest additions, and ...