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

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Virtualbox - Install Guest Additions over again every time Linux kernel updates

I have Ubuntu running as a Virtualbox, and every time it upgrades the kernel, the Guest Additions stop working. The install process in Linux requires using a virtual CD, running scripts from the ...
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can a VirtualBox VM run on different hardware?

I have created a VM using VirtualBox on 'A' hardware configuration. Can I expect correct working of this VM if I copy the VM hard drive image and use it on a different hardware configuration 'B'?
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Getting 1920x1080 resolution or 16:9 aspect ratio on Ubuntu or Linux Mint

I am running Ubuntu and Linux Mint in VMWare. In the display settings, none of the 16:9 aspect ratio resolutions are available, including the commonly used 1920x1080 resolution. How can I enable this? ...
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1answer
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VirtualBox - reduce max-size of dynamic .vdi hard disk

I'm trying to reduce the maximum capacity of a .vdi file (hard disk) for one of my VMs. I set it as dynamically-allocated with a maximum capacity of 25GB. I want to reduce this to 10GB. NOTE: I do ...
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VirtualBox: VPN networking test environment

I want to setup VirtualBox instances of Ubuntu guest to make a VPN test network. The host is Windows 7 Ultimate. My hope is to setup a VirtualBox instance which represents a gateway for the test ...
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Premade Virtualbox images

Long story short, I am trying to find a pre-made Linux development environment for VirtualBox so I don't have to worry about installing a distro, getting all packages installed, and so forth, since ...
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1answer
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Virtualbox Linux host: Pass non-recognized USB device through to Windows guest

I'm running Virtualbox 4.1.2 (with the corresponding extension pack) on an up-to-date Ubuntu 11.10 host with Windows XP as a guest. I have a National Instruments USB-6251 device which I would like to ...
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How can I cause a VirtualBox VM (running Ubuntu) to run a command upon resuming its state?

I am running a few Ubuntu VMs on a MacBook Pro host. Whenever I pause a VM or save its state to disk, the next time I restart it, the system clock goes out of sync. Is there a way for the VM to know ...
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Bridged vs. NAT: a Virtualbox and VMWare Comparison

I installed VMWare Workstation 7.1.x and Virtualbox 4.0.8 on two different hosts, so I could compare. I set the virtual network adapter on both to NAT, which was successful for both. The result: ...
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2answers
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exporting a virtualbox VDI to a harddrive to boot it natively

I have a VirtualBox 3.1.2 image of Debian 5.0.2 running on Windows XP SP3. I would like to export that Debian image to a USB harddrive such that I could boot to that drive and run it natively. Is that ...
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Virtualbox 3.0 is very slow, any way to fix it?

I upgraded to Virtualbox 3.0 and then 3.0.2. I use Vista as a host and Ubuntu as the guest. In Virtualbox 2.0 I was able to run Ubuntu with standard desktop effects. After upgrading I noticed that ...
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1answer
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Network adapters in Virtualbox virtual machines

When setting up a virtual machine with Virtualbox, in the Network configuration section it is possible to select from various emulated adapters: The default one, automatically selected at the VM ...
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Is using a Virtual PC on a RAM DISK super fast? (putting the .vhd file in a RAM DISK)

I wonder how or if any one tried to create a RAM DISK, and then put the 2GB (or sometimes 1.2GB) .vhd file into it, and then run the virtual PC using this image. It should be running super fast, as ...
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1answer
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Convert VirtualBox dynamic VDI disk image to static, fixed VDI

I've originally created my VDI to auto-expand to 20GB of virtual capacity. For performance reasons, I would like to convert them to linear, that is, to have a single, non-sparse, 20GB file sitting on ...
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1answer
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Boot from a VHD created by VirtualBox

I have used VirtualBox to create a VM, and installed the latest Windows 8 Consumer Preview on it. I have a .VHD file with the OS installed. I am wondering, since Windows 7 supports boot from a VHD ...
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1answer
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Can I move a VirtualBox vdi from Windows to OS X?

I have a Windows 7 machine with VirtualBox 4+ installed. It runs a couple of virtual machines (Windows XP, Ubuntu, ...) and some of them have a few shared drives (No two machines with shared drives ...
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2answers
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Ubuntu on Oracle VirtualBox: Shared folders

I looked at this question, but it didn't help. I'm running Windows 7 as a host with Ubuntu 10.10 as a guest with VBox 4.0. I want to have a shared directory between the two. I have installed Guest ...
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What is the world's smallest-footprint LAMP stack? [closed]

What is the world's absolute smallest known VMWare/VirtualBox image supporting basic Apache/PHP/MySQL functionality? Before or after compression.
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Setting up networking on Virtualbox Guest to access Host VPN

Im trying to get this setup going but am having quite a bit of trouble. Host OS: Windows 8 64bit Guest OS: CentOS 6.5 64bit I'm using the Cisco VPN Client on my host to connect to a number of ...
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Windows 8 Screen Resolution in VirtualBox [duplicate]

Possible Duplicate: How to add a display mode to a VirtualBox VM? I am using VirtualBox to run windows 8 while I test it out. All of my other virtual machines (i.e. Windows XP a Ubuntu) ...
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4answers
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How to transfer files from Host OS to guest OS running on VirtualBox?

I am trying to transfer files from my Host OS (Windows 7) to Guest OS (CentOS) running on VirtualBox. I tried using pscp but it gives the error: More than one remote source not supported I tried ...
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dual monitor linux guest in virtualbox

I read that the newer VirtualBox supports Linux guests with dual monitors. I'm able to get two monitors to start when I start my Arch VM, but I cannot get Xorg to span to the 2nd monitor. They ...
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1answer
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How to mount KVM virtual machine image to VirtualBox?

I have received a .img file of a server which is a Virtual Machine running in a KVM environment. The Virtual Machine has Ubuntu installed. I would now like to take this .img file and "emulate" the ...
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1answer
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Using Windows as a VirtualBox Host, how I can get AltGr behavior on linux guest?

I'm having an issue using a keyboard which is not an English US keyboard. It seems that when it's the case, pressing AltGr key will simulate CTRL + ALT on Windows. I have verified that fact using ...
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Linux Virtual Machine runs Slow depending on the Network

At work I use a VM running Linux Mint 13 under Oracle VM VirtualBox 4.2.16 on a Windows7 machine. The laptop is connected to a network cable and the wireless connection is turned off. The network ...
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Traffic between VirtualBox guests not showing up in tcpdump

I have a test environment setup with 4 VirtualBox guests running CentOS 6. Each has one network device attached to a bridged adapter, which is my primary network connection on my PC, with a static IP ...
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1answer
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VirtualBox shared folder write permission - Ubuntu 12.04

I'm using the following command to mount my folder in VirtualBox: sudo \mount -t vboxsf -o rw -o uid=1000 -o gid=1000 Dropbox ~/Dropbox/ However, the folder is read-only. I re-installed Guest ...
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1answer
876 views

Installing Windows 8 Dev Preview on a Macbook Pro

Is it possible to install Windows 8 Developer Preview on a Macbook Pro. I'm trying to do this using the WindowsDeveloperPreview-64bit-English-Developer.iso file with VirtualBox but fail during the ...
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4answers
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Using my OEM windows license in a virtual box image?

I just bought a new PC, I'd like to wipe windows and install Ubunutu, but I'd like to be able to run windows in virtual box. Rather than have to buy a totally new window's licence, is it possible to ...
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Issue with VirtualBox USB passthrough

I have Backtrack 5 R3 setup as a guest OS in VirtualBox. When i try running my USB wireless card, the Alfa AWUS036NHA with the AR9271 chipset, I see this error. ath9k_htc 1-1:1.0: ath9k_htc: ...
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1answer
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VirtualBox and Wireless interface Bridging?

Can anyone please tell me how does VirtualBox 4.1.4 OSE version bridges the connection with the wireless Interface (wlan0). Yes! It was working fine in my guest :) . I read the Documentation at their ...
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How to update to latest VirtualBox and backup files?

I want to update to the latest version of VirtualBox. How can I do it without losing the OS I installed and the files inside? How can I backup everything I have on VirtualBox? I currently have ...
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1answer
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Can I “Speed Up” a VM to emulate the passage of time?

I'd like to put a VM into "fast forward" so that I can see several days (or weeks, or months) worth of logs and temp files build up and analyse them. Is that possible with virtualbox & ubuntu ...
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1answer
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VirtualBox: How to restore a deleted configuration file?

Somehow a lot of things went wrong with VirtualBox. The configuration-file (which is an xml-file) was cleared, because there was most probably no space left on the disk. The harddisk file was lost in ...
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2answers
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x64 Hardware Virtualisation support not detected on Windows 8.1

I get the following error (and yes I know this has been reported many times, but please read further): VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit guest will fail to ...
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How to recover Virtual Machines in Virtualbox?

For some reason, all of a sudden, all virtual machines are gone from the User Interface in virtual box. I suspect CCleaner has something to do with it, but that's not the point. Both the virtual ...
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What is the best way to hide a command prompt window

I'm running the headless interface of VirtualBox (VBoxHeadless.exe) with Ubuntu Server running on it. Every time I run VBoxHeadless, it starts a command prompt window which just sits on the taskbar ...
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VirtualBox: Start tag expected, '<' not found

After restarting VirtualBox on a hard drive almost full, the VM I was using in "unaccessible", with this error message: Start tag expected, '<' not found
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VirtualBox bidirectional clipboard sharing stops working after some time

Clipboard sharing starts working fine, but it stops working after some time (until I reboot the machine). From what I understand sometimes the guest additions stop working. I read that I should see ...
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2answers
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How do I trap the mouse pointer within a VirtualBox Guest OS?

I'm on a Mac Mini 2011 with VirtualBox installed. I have Windows 7 running as a Guest OS. My question: How do I "trap" my mouse pointer within Windows? In other words, I don't want my mouse to move ...
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2answers
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How to input hash (#) symbol to terminal?

I'm running Ubuntu Server as a virtual machine (using VirtualBox) on my mac. Normally on the Mac, I'd press alt + 3 to input the hash (#) sybmol. However, if I do this in my Ubuntu Server's console, ...
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Linux Mint 14 seems to Randomly Change Workspaces on Laptop

I am running Linux Mint 14 (Cinnamon) in a VirtualBox VM on Windows 8 host using an HP Envy 17" laptop. It seems like it randomly decides to show the workspace selection screen while I'm doing ...
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3answers
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Set password for root on virtualbox ubuntu

I loaded ubuntu into virtualbox. It all works well but it occurred to me that I was not asked (or did not setup) a root password. I want to use root on occasion, but I cannot seem to find out how to ...
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4answers
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Sun Virtualbox: Cannot Install Windows 95 or 98

I'm running XP and I've tried to install Windows 95 and 98 with the official CDs in Virtualbox. Both of them give the error: FATAL: no bootable medium found! System Halted I've mounted the CD ...
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3answers
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How to temporary turn off seamless mode of VirtualBox?

I use Deskpin to nailed the virtual machine to be on top by using hotkey Ctrl-F12. But in seamless mode, I cannot do that since every time I click the guest machine's window, the mouse go inside the ...
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4answers
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auto-mounting shared folders in VirtualBox

I am writing to ask what the effect of the auto-mounting process is in VirtualBox, and where the folders can be accessed within a guest Linux system if auto-mount is used. I have VirtualBox 4.0.4 ...
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Run Windows inside a virtual machine on Linux for gaming

Since making the full time move to using Linux (Fedora) from Windows, I've found the migration fairly easy and haven't had much disruption in how I do my work. However, there are some games I like to ...
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3answers
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Why do I get “this CPU is not compatible with 64-bit mode” on a 64-bit processor?

I have a 32-bit Ubuntu 10.10 as a host OS, VirtualBox 4.0, Windows 7 64-bit Professional as a guest OS. The laptop processor is 64-bit. When I try to load Windows 7 64-bit in VirtualBox, the error ...
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2answers
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VirtualBox command line error

I can run VirtualBox just fine, but when I run anything from the command line I get: VBoxManage.exe: error: Failed to create the VirtualBox object! VBoxManage.exe: error: Code ...
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How to use Oracle VirtualBox' remote display feature?

I can't use Oracle VirtualBox remote display feature. I have host OS of Fedora 15 PAE. This OS is running Virtual Box with the same guest OS (Fedora 15). The network driver of virtual box is in ...