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

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17
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3answers
13k views

Dedicated mouse and keyboard for a virtual machine, is it possible?

Let's say I have a PC with two monitors atached. I'm running e.g. Windows Vista natively, and start up a virtual Ubuntu PC. I change to fullscreen mode so that on one Monitor, I see my Windows ...
16
votes
3answers
19k views

Installed minimal CentOS 6.4 in VirtualBox but have no internet?

I just started using the VirtualBox, but I don't seem to have any internet on the CentOS when I type yum update. Is there a solution to my problem? (it could possibly be a problem with misconfigured ...
16
votes
7answers
40k views

How can I get Windows 8 and VirtualBox to use my full screen?

I'm running the enterprise evaluation (Build 9200) of Win8 and VirtualBox 4.2.4 r81684 and my actual display is 1920x1200. When I use the host-F key to enter full screen mode, the best I can configure ...
16
votes
4answers
628 views

How does virtualizing differ from emulation, in terms of structure?

Someone told me that a virtualizing program like VirtualBox does not work like an emulator does in the sense that it doesn't emulate registers and uses the actual ones for the virtualized data that ...
16
votes
2answers
21k views

How to run a VirtualBox VM from command line?

I want to know how to start a VirtualBox Virtual Machine (VM) from the command line (using Windows 7) as well as shut it down with the operating system. What is an easy way to achieve this?
16
votes
2answers
19k views

Is it possible to assign more video memory in VirtualBox?

I am currently using VirtualBox to run a Fedora 15 VM. While changing my settings, I allocated 128MB of video memory, as well as enabling 3D acceleration. Is there any way to assign more video ...
15
votes
11answers
64k views

How to open existing VMs in VirtualBox?

VirtualBox seems to lack the obvious "File -> Open" menu option. Frustrating! More details... I recently got a new workstation and I moved my VirtualBox and VMWare Player VMs from the old PC to the ...
15
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2answers
38k views

Virtual Machine (VirtualBox) — How to access files from the hosting machine?

I have a PC with Windows 7 Ultimate (A) running on it. From within that OS I have VirtualBox running another Windows 7 instance (B). Is there any way for the Windows 7 (B) to access files from ...
14
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5answers
52k views

How do I exit an SSH connection?

I'm connecting to a server via ssh to send a message to a socket server using a command like: ssh 181.169.1.2 -p 5566 After the connection is established and i write the message and send it i ...
14
votes
2answers
15k views

easy_install will not connect through proxy

I'm running Ubuntu Server 10.04 64-bit under VirtualBox, and it seems that everything except easy_install and pip can connect to the Internet. I have set and exported the http_proxy environment ...
14
votes
4answers
26k views

How to start Windows XP in Safe Mode when its a VirtualBox guest in a Mac OS X host?

I've tried tapping F8 as it boots up, but I just get the normal logon screen. I'm using a Mac Mini with an Apple keyboard, do I need to do something special to get it to recognise F8? I'm trying to ...
14
votes
1answer
9k views

Copy vagrant box locally

I have a vagrant box running on VirtualBox, and I need to make a copy (with all its existing config and data), so that I can make changes on it without affecting the original. The problem is that my ...
14
votes
7answers
14k views

Limiting CPU speed in a virtual machine?

Does anyone know of a way to limit the CPU speed in a virtual machine? Or if there is even a virtualization software that allows you to do this? I am trying to find the minimum requirements for a ...
14
votes
2answers
6k views

Intel VT-x disappeared after upgrading to Windows 8

I've upgraded to Windows 8 some weeks ago (MSDNAA!) and today, while I was trying to run a VM, I've noticed that VT-x is disabled. Now, Hyper-V works without problems, as I've tried emulating Win7 ...
14
votes
4answers
4k views

Cannot Share host directory with VirtualBox Guest Mint 16 64 bit

Problem When attempting to mount a shared directory from Linux Mint 16 VirtualBox guest OS, I receive the following error: mount: wrong fs type, bad option, bad superblock on hostshare, ...
14
votes
2answers
22k views

How do I delete a VM in VirtualBox when the hard drive the VDI file was on is deleted?

I'm using VirtualBox hosted on Windows 7 and the physical hard drive that one of my VM's VDI file was on got completely borked and no longer exists. The problem is that now I can delete neither ...
13
votes
5answers
4k views

Resizing a Virtual Machine in VirtualBox

How can I resize my Virtual Machine, it is only 10GB and I need probably 50GB for this. Is it easy to resize the image?
13
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6answers
36k views

Ubuntu on VirtualBox can only show resolution of 800x600 - how do I change it?

My monitor is 1920 x 1200 and the computer is running Windows 7. Using VirtualBox and Ubuntu 10.04, the screen of the Ubuntu can only be 800 x 600 or 640 x 480. Is there a way to change that. I ...
13
votes
4answers
10k views

Change VirtualBox DHCP to issue 192.168.x.x adresses instead of 10.0.x.x adresses?

I have a VirtualBox (v4.1.8) VM that is automatically assigned with an IP in the 10.0.x.x range via DHCP. Can I change it to use the 192.168.x.x range instead?
13
votes
3answers
8k views

Can I just copy and rename a VirtualBox vm?

I want to create a new vm starting from an existing virtualbox vm. Can I just copy and paste and rename the existing one?
13
votes
3answers
5k views

How do I set the Apache2 DocumentRoot to a “vboxsf” VirtualBox Shared Folder? (permissions issue?)

I setup Ubuntu 11.04 desktop 32 bit on a VirtualBox VM with a shared folder to the host. The shared folder is /media/sf_Dev/ I want to change Apache2 to point the DocumentRoot to that folder, so I ...
13
votes
4answers
26k views

Unable to install VIrtualbox, `“Specify KERN_DIR=<directory>”` — installing Virtual Box to Debian?

I am getting this error "Makefile:181: *** Error: unable to find the sources of your current Linux kernel. Specify KERN_DIR=<directory> and run Make again. Stop." What is this error and how to ...
13
votes
5answers
31k views

How can I get VirtualBox to run at 1366x768?

I'm trying to run Windows 8 in VirtualBox. My laptop's display is exactly 1366x768. Windows 8 disables some of its features if the resolution is less than 1366x768, so I need to run the guest OS ...
13
votes
2answers
10k views

How do you add more space to a Fedora (LVM) partition?

In a nutshell, i have a VM that ran out of space. I increased the size of the VM's harddrive to be 4 times bigger but the OS partition is still only using 1x the space. I need to change the LVM ...
13
votes
2answers
17k views

How to increase a virtualbox' disk size?

The title says it all. I created the disk and now I would like to increase its size. I know I could add a new one, but I don't want to. The guest os in question is Ubuntu 11.04
12
votes
1answer
138 views

Virtualbox access issue

I have program that sends RTP packets. But I don't know what IP to access. The ip shown in virtual box is 10.0.2.2 but i can't ping it from my operating system... My computer is under work domain, ...
12
votes
6answers
12k views

How can I run a VirtualBox machine as a service on Windows XP ?

I have a VirtualBox machine with Windows XP on a Windows XP Host. How can I start VirtualBox as a service, so I can get a virtual machine under the hood, and I don't have to start VirtualBox in order ...
12
votes
2answers
17k views

Use physical harddisk in Virtual Box

Using Virtual Box, how can I install an OS to a secondary, physical disk, and boot it in both (at separate times) Virtual Box, and as a typical secondary OS install?
12
votes
2answers
13k views

How to make a virtualbox image of running windows system

Is it possible to do this so that the image is transferred over network connection to some other computer? Or is it even possible to resize the partition on the fly to get rid of unnecessary amount of ...
12
votes
9answers
14k views

How to SSH into Red Hat Linux (virtual box guest) from Windows 7 (host)?

I have Red Hat Enterprise Linux (RHEL) running through Virtual Box, my native OS is Windows 7. From a purely educational standpoint, I want to be able to access RHEL from Win 7 over SSH. I downloaded ...
12
votes
2answers
7k views

VirtualBox Solid-State Drive setting ok for spinning disks?

So I noticed with 4.1 that VirtualBox added a "Solid-State Drive" option in the storage section. I also know that Win7 will report free space differently for a solid state disk so that the disk can ...
12
votes
5answers
22k views

How do I go back to a snapshot in VirtualBox?

I've made three snapshots on VirtualBox virtual machine (winxp). I want to go back to Snapshot 2. If I click on "Snapshot 2" and click Start, it goes back to the current state. I can click on ...
12
votes
5answers
4k views

Sharing VirtualBox snapshots

Is it possible to "share" a VirtualBox snapshot? I have a "baseline" VirtualBox machine, and I would like to be able to take a snapshot, and send it to another user which has the same baseline ...
11
votes
4answers
16k views

which file type to install my virtual hard disk in while installing a new machine on virtualbox?

I got some options like VHD, VMDK, HDD, and VDI is there a file type that is most commonly used and is supported by most other virtual disk software?
11
votes
4answers
13k views

Emulate fake monitor on Windows 7?

Is there a way to emulate a monitor on Windows 7? I have one physical monitor, and I want Windows to think I have two. I actually don't care whether the second monitor is visible anywhere, or if ...
11
votes
3answers
11k views

Windows 8 Start Screen very slow after Guest Additions

I installed Windows 8 Release Preview on a VirtualBox VM, and it worked correctly. Then I installed the Guest Additions to get the correct resolutions. Now, the Start screen is very slow, takes a ...
11
votes
2answers
15k views

SSH Basics on Vagrant VMs

I'm building a vagrant machine (Ubuntu 12.04) with the following requirements: SSH access via Vagrant to a user with sudo-privileges. I've generated public/private keys (via ssh-keygen) on the ...
11
votes
1answer
275 views

When does a VirtualBox snapshot actually happen

I spend a lot of my job writing documentation for the installation of software on my employer's servers. Sometimes this is quite complicated, so I do the initial work inside a virtual machine running ...
11
votes
1answer
2k views

Is it possible to disable default /vagrant synced folder?

According to source code - it's not, but what if I'm wrong? So the final question: is it possible to run a vagrant VM (virtualbox-driven) without /vagrant synced folder?
11
votes
2answers
6k views

Where can I download virtual machines for VirtualBox?

What are the alternatives to VMWare's Virtual Applicance Marketplace?
10
votes
8answers
14k views

Boot Camp, Parallels, VirtualBox Or Fusion? [closed]

Boot Camp, Parallels, VirtualBox Or Fusion? In a recent article on Australian LifeHacker.com they discussed the following question, I trust the SU group more then the anonymous answers from ...
10
votes
2answers
20k views

Proper way for changing MAC address in a linux VM?

I tried to change the MAC address in a ubuntu VM (virtualbox), but after that it threw lots of errors during boot, and then I had no internet connection. Then I saw that the interface was renamed to ...
10
votes
4answers
12k views

How can I change the BIOS serial number in VirtualBox?

VirtualBox sets the BIOS serial number of every VM instance to 0. It seems to be possible to change some BIOS settings, but I haven't seen anything that directly references the serial number. Can ...
10
votes
6answers
2k views

Virtualbox, VMware, KVM or other for Ubuntu virtualization?

Is any one of these better than the others? What are the differences in practical terms for home use?
10
votes
4answers
15k views

Linux VirtualBox guest suddenly running extremely slow

Apologies for the very long post, I have posted this on the VirtualBox forums but the activity seems to be quite low and no responses yet so if I may, please bear with me here. Specs Host Linux ...
10
votes
4answers
9k views

Quickest way to merge snapshots in VirtualBox?

I have vdi with quite a number of snapshots taken from it - say, 50 or 70 snapshots. I want to have one plain vdi with a current state. These snapshots take way too much disk space and are not needed ...
10
votes
1answer
9k views

Why can't I create soft link on vboxsf file system?

ln -s keeps saying me that file system is read-only, however it is not. ice@distantstar:~/virt ➜ touch file ice@distantstar:~/virt ➜ rm file ice@distantstar:~/virt ➜ ln -s ~/.bashrc ~/virt/.bashrc ...
10
votes
3answers
12k views

My virtualbox fstab will not auto-mount on reboot?

I am able to mount my drive manually like this (ubuntu): sudo mount -t vboxsf C_DRIVE /mnt/saga_c But when I try and add it to my fstab it does not mount when I restart the machine. Is there ...
10
votes
4answers
8k views

Can I use one virtualbox disk for multiple machines?

I'm not sure what search term to use and skimming through the VirtualBox manual didn't help me either, so I ask my two questions here... My setup is this: PC with dual boot into Windows 7 and a ...
10
votes
6answers
31k views

Virtual Box - not filling entire screen

I am new to VirtualBox and am trying to set up an instance of Windows 7 64. I have the virtual machine instance running with Windows 7 now installed, but it only fills up a small portion of my ...