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

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Debian network problems in Virtualbox

I have virtualbox 4.3.20 (win 7 x64) and debian 7.7 stable wheezy installed on my computer. My network settings for VB are: Attached to bridged adapter, promiscous mode deny My problems is that ...
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42 views

VirtualBox write-through drive not working on Ubuntu

I have a VirtualBox VM with Ubuntu installed on normal VDI, and I added another write-through VDI so that I could keep my code intact when I switch between different system snapshots which I use for ...
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94 views

CentOs stopped working after update in VirtualBox

I recently updated my OS to centOs 6.4 in virtual box. Before update I had guest additions installed and everything worked fine. The screen resolution all was fine. After update to 6.6, the OS stopped ...
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144 views

Allow LAN users to access my VirtualBox using NAT+Port Forward?

I have a VirtualBox setup with Ubuntu + LAMP with OpenSSH. I’d like my colleagues to access services on it—such as ftp, http, ssh…—through the LAN. I can’t setup the VirtualBox via network bridging ...
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783 views

Virtual Box fail load virtual machine E_FAIL (0x80004005)

I have Xubuntu VM on VirtualBox 4.3.18 on Windows 7 Service pack 1 with some updates. Error message is: Result Code: E_FAIL (0x80004005) Component: Machine Interface: IMachine ...
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175 views

Capture network traffic between VM's Virtualbox using Wireshark

I'm trying to capture all network traffic between VMs (and in the VMs to themselves) running on a single host using Virtualbox for the VMs and Wireshark for the capturing. VMs are Ubuntu 14.04 and the ...
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37 views

Virtualbox guest state not restoring properly?

Running Windows 8 host. NOT Windows 8.1. Running Ubuntu Desktop 14.04 LTS guest. Guest has 64MB Video memory, 3GB RAM, 3 processors at a cap of 90%, 3D acceleration, guest additions, and a 64 bit ...
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68 views

VirtualBox inaccessible

The following issue is stopping me from working in VirtualBox. I cannot start it, as you can see per image. The file VBoxGuestAdditions.iso is in the correct folder and does exist/is accessible. I ...
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323 views

VT-x/AMD-V hardware acceleration is not available - Windows 7 VirtualBox

I'm trying to run a Mavericks virtual machine on my Windows 7 PC using VirtualBox. However, every time I try to run it, it gives me the error message: VT-x/AMD-V hardware acceleration is not ...
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44 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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30 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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237 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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64 views

Live VM snapshot without pausing the VM

Which virtualization systems support taking a snapshot of a running VM without pausing the VM? As far as I know, both VMware and VirtualBox pause a VM while taking a live snapshot. Technically it ...
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58 views

System ERASED 2000 files suddenly without any user action. Can recover part of it but some files of importance are corrupted

On a Virtualbox WIN XP SP3 guest machine, the following situation occurred While I was working I had 3 opened windows as usual - Browser, notepad for writing notes in a txt file, and a PDF (thats ...
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105 views

Virtualbox Guest keyboard not inheriting Host keymap

I have a MAC OS/X host system running a Xubuntu as guest. In my MAC, in the shortcuts/key mappings, I chose to reverse the Command/CTRL keys (cause I use a PC keyboard and I'm used to it) The ...
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480 views

vagrant private_network with osx host/centos guest using virtualbox host-only networking

I cannot get host-only networking to work from host to guest or guest to host using e.g. ping, netcat or ssh. Sshing fails timing out. No packets are seen when starting wireshark on the host interface ...
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217 views

Can't delete a read-only file on a VirtualBox (Vagrant) shared folder between Ubuntu (guest) and Win7 (host)

I have Vagrant running Ubuntu as a guest OS, on top of a Windows 7 host. When working on the shared folder between guest and host, if a file is read-only it can't be deleted. For example: ...
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38 views

I need to re-mount the shared folder everytime my host folder has new files or changes in Virtualbox

I work with a Windows 7 host and a Xubuntu guest. Everytime my shared folder in Windows has new files or changes, I have to hit sudo mount -t vboxsf ... Why's that? Can I automate it somehow? Is ...
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145 views

Can't access HTTPS resources with Ubuntu client and VirtualBox Windows host

I have VirtualBox 4.3.12 on Windows 8.1 running Ubuntu Trusty 32bit client. When I try to access HTTPS resources from the client, I see errors like: Cannot fetch index base URL ...
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257 views

Virtualbox Memory Overcommit

I need to run a VM appliance that wants access to more RAM than available on the physical host (16GB needed). I understand there are performance penalties, but I plan to run this VM as a background ...
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33 views

Easiest way to copy ASCII text into VirtualBox VM without Guest Additions?

Specifically On a Windows 7 machine running Oracle Virtualbox version 4.3 (the actual type of Virtualbox shouldn't matter, but just in case), what is the most painless way of copying plain text to ...
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155 views

virtualbox VM host-only interface and vpn interplay issue

I'm having some weird connectivity issues when combining a masqueraded virtualbox VM with a connection over a VPN. The setup: - I have a virtualbox VM on my machine - This VM has connectivity issues ...
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94 views

Exposing an USB device directly to a Virtualbox guest

I have an virtualBox VM with a windows guest system (Windows XP 32Bit). The Host is also a Windows (Windows 7 64Bit). Normally I just want to use known usb devices (which are known by my host and ...
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1k views

Route traffic from local network to VirtualBox host-only adapter

For a test I need to allow routing from my local network to a guest inside a VirtualBox. The guest already have outside access. So far I enabled ip forwarding on my local machine (OSX 10.9) and added ...
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144 views

Vagrant vbox 45-50% CPU usage

I am running a headless Ubuntu server box on my Windows 7 64 bit PC with Vagrant. My PC has 8 GB ram and Intel Dual Core 3.16Ghz E8500 processor and PAE. The problem is that VBox routinely uses btw ...
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187 views

Can't login to CentOS desktop as root via GUI prompt

I have CentOS 6.5 running on a VM in VirtualBox (Windows host). I had no problems logging in as root from the GUI prompt (clicking on Other and typing root, then my root password and getting the ...
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102 views

Cant use host-only adapter and bridged adapter at the same time virtual-box

I want to create a virtual network that real devices can connect to using virtual box. I have 2 routers I am bridging to virtual firmware. I have servers also running on vm's and would like to be able ...
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818 views

USB 3.0 backward compatible external HDD in VirtualBox

I have Xubuntu 14.04 32-bit installed as a guest in VirtualBox 4.3.12, hosted on a MacBook Air running Mavericks. I can acccess two external USB non-NTFS drives in Xubuntu after ejecting them when ...
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442 views

In Virtualbox, is it possible to change the emulated CPU name?

I have a Virtualbox VM running Windows 7. When I open Start -> Right click "Computer" -> Properties, I get the real CPU name and plausible CPU speed (not sure if it's exactly the same). Now I want ...
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77 views

Map network drive to VM Virtualbox with CentOS

I can connect with Putty to my CentOS using the virtual machine's IP address, but I can not map a network drive to the virtual machine from Windows 7 using \\IP\shared_file. I use the VM's IP address, ...
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775 views

Start 32 bit Windows on Virtualbox without VT-X

Since my main PC went down, I swapped my HDD to an old PC that doesn't support VT-X at all, while the broken one does. The problem is, my guest is a 32 bit Windows 7 that doesn't want to start ...
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813 views

VirtualBox Windows 7 guest network driver not installed even after installing guest additions

I installed VirtualBox on CentOS 6.0. Installed Windows 7 as a guest OS. Now it doesnt recognize the network card in the guest OS even after I installed guest additions. The network mode is NAT. ...
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88 views

git corrupted on ubuntu vbox, power failure with proper shutdown

i use git on ubuntu headless server on virtualbox on my laptop. when i shut down the pc, i don't bother shutting down the virtualbox, i just shutdown the pc. it never was a problem. it was fine since ...
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685 views

virtual box installation aborted in window 7 guest

i tried to install a guest addition in window 7 guest but it can not be succeed with unknown errors, below is the log file of the installation. Stopped logging into separate file Output folder: ...
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418 views

Virtualbox: How to use VBoxBalloonCtrl

I am running some virtual machines with Oracle Virtualbox 4.3.10, and they have guest additions installed. I know that you can manually balloon (take away unused memory from the guest) RAM with ...
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31 views

Switching windows licenses during windows upgrade

I have a PC with a valid Windows 7 (box installation) license. On this PC, I have a virtualbox with a non-valid windows 7 license. I installed this for testing, but since I am going "productive" now, ...
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137 views

No Linux variant works on my Virtual Box - System freezes after booting

No Linux variant works on my Virtual Box - System freezes after booting.. I'm currently running Windows 8 on a new laptop with Intel Haswell and Nvidia Maxwell architecture. Also the system has 8 ...
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60 views

Webm video flashes compression artefacts

Doing som testing on capturing video from VirtualBox for a screencasting project. VirtualBox uses webm for video and it works sort of OK. However, it has "flashes" of heavy compression artefacts. ...
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525 views

Does VirtualBox support guest hibernation?

Currently I am experimenting with hiberfil.sys file on Windows 7 and to not break my major system, I decided to install Win7 in VirtualBox. As turned out, hibernation is disabled and cannot be enabled ...
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244 views

How to expose local loopback to (VirtualBox) VM connecting to host via NAT (VirtualBox NatNetwork)

I'm using the VirtualBox NatNetwork type to connect most of my VMs to the host (with the required ports set up for forwarding). I'd like to know how I can connect to the local loopback ("localhost") ...
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379 views

Where to find the permission or policy to allow installation of network adapter service in Win7

I am trying to install a VirtualBox VM on all of my colleagues machines, one of which is giving weird problems - The VirtualBox installer doesn't seem to have installed it's network adapter/services. ...
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106 views

VirtualBox mounted with Vagrant reach maximum diskspace

Today my Windows build machine reached its disk space limit. It turned out that I had more than 400GB in the folder C:\Windows\System32\config\systemprofile\VirtualBox VMs During the build process, ...
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265 views

Is it possible to route all traffic on VirtualBox host adapters to guest?

I am upgrading Ubuntu 8.04 on a dedicated router/firewall/NAT/SMTP/SSH server with a current Linux (Debian Wheezy). I am using VirtualBox (4.2) with Ubuntu 8.04 as host and the new Debian build as ...
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655 views

Hyper-V not starting Windows 8.1 formally had VirtualBox installed

I'm a Windows developer and I want to get started with Windows Phone 8. I previously had Oracle VirtualBox installed but was told that the Windows Phone Emulator needs Hyper-V, which doesn't work well ...
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113 views

Does a VirtualBox/CentOs need two adapters to work properly ?

I have a Windows 7, 32bit, HP Laptop. I have CentOs 6.5 running on VirtualBox 4.3.10. Here is my eth0 config. Code: #vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 ...
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67 views

Virtualbox remote access on ubuntu server

I explain the problem, I have to connect via ssh tunneling enabling x11, to a remote machine with ubuntu server, in detail: Host: Windows 7, the software used putty Server: ubuntu server virtualbox ...
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282 views

Virtualbox 4.3.10 on Win 8.1 no usb for Win 7 VM

I have a new Asus laptop(64bit) running windows 8.1, installed virtualbox 4.3.10(latest) and installed a window 7(64 bit) VM with extentions(guest additions...). I have tried every combination from ...
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56 views

VirtualBox host key stops working

I'm running an Ubuntu virtual machine on a Ubuntu host on my laptop. A majority of the time when I switch from my host to my virtual machine (full screen) the host key stops working. Now that I'm in ...
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16 views

Hide Monitor form Host OS

I have Ubuntu 13.10 running as a guest OS in VirtualBox on Windows 8. I have two monitors set up on Windows, and I know I can run Ubuntu in full screen mode, but that still allows windows to be hidden ...
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915 views

VirtualBox and Samba 4 on Linux Guest (NAT and Host Only)

Gentlemen, I really need a help from you to configure the "Samba 4" using the "Virtual Box". Here's the situation: In certain networks where I work, the Samba 4 works, in other does not. The guest ...