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

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Network Bridge in Windows 8

In Windows 7 i bridged my ethernet connection and the Host Only Adapaters of my VirtualBox VMS to gain access to the Internet through the Network Bridge and the VMS were part of my LAN. My Setup was ...
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1answer
6 views

Sharing existing ubuntu folder on host guest with Virtualbox

I am familiar with sharing directory between Ubuntu guest machine to host machine. But now I need to shared an existing ubuntu folder with the guest machine. I don't understand if and how it can be ...
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5answers
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Cannot boot after vhd hard drive is resized in VirtualBox

In Windows 7, I set up another Windows 7 VM in VirtualBox. It worked great. Then, I needed to increase the vhd HD size. So, I used VBoxManage utility to do that with the following comment: VBoxManage ...
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0answers
17 views

VBoxService not starting in Windows 10

Managed to get Windows 10 running as a VirtualBox guest on Linux fine. However the 'Guest Additions Service' VBoxService will not start and there is no additional info in the Windows Event Logs. ...
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0answers
13 views

Can't Access Internet in Kali Linux

I have the very latest version of Kali Linux installed in a Virtual Box VM. My problem is I'm connected to the Internet in my Windows host but cannot access the Internet in Kali (accessing Internet ...
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0answers
43 views
+50

Virtual Boxes, Linux hosts, Windows guests, Shared folders and Recycle bins

Basically what I am looking for is a way for sharing folders between my Debian Jessie host and Windows 7 guest without the fear that I accidentally delete files under Windows and have no (convenient) ...
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0answers
9 views

Use internal Wi-Fi card and USB card for virtualbox

I was able to get a usb Wi-Fi adapter working on virtualbox. However I am no longer able to tether to my laptop's internal Wi-Fi, via eth0. How do I allow my OS on virtualbox to see both the USB Wi-Fi ...
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3answers
33 views

Why can't the guest of VirtualBox connect to network?

I have installed CentOS 7 on virtualbox, and network setting is NAT. The guest can't connect to network: systemctl -l status network output likes this: ip addr output likes this: Could anyone ...
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2answers
3k views

Virtualbox: NAT networking suddenly stopped working for all Windows guests, Linux guests still OK

My host is an out-of-the-box Ubuntu 12.10 simply connected to Wifi. I installed VirtualBox, and then a few Linux and Windows 7 Pro guests on it, all with default VirtualBox options (NAT). I reboot ...
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0answers
14 views

VirtualBox Clone VM for another PC

Let's assume I have a vm named Lubuntu.vdi, unregistered to VirtualBox, and it resides on PC-Private. Now, I clone the vm and the clone has the name Public-Lubuntu.vdi, and it resides on PC-Private. ...
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1answer
2k views

ubuntu server in a vm, can't connect to internet

I'm attemtping to host my own development web server in a virtual box guest, Ubuntu Server. I would like this virtual machine to be accessible from not only my home network, but outside the LAN as ...
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1answer
525 views

Test PXE using VirtualBox

I have a Linux laptop running a PXE server. I run the PXE server on the wired port so I can connect computers to it directly. When the Ethernet port is connected I can use PXE to boot a VirtualBox ...
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8 views

VirtualBox VM slow when not focused

I have a CentOS 6.6 VM set up using VirtualBox on my mac, it's command line only, no X. It generally works really well but I've noticed that it is sometimes very slow when I SSH (using terminal) or ...
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0answers
6 views

Is Vboxfs can be formatted?

As I am working on the Oracle XE 11g database installation on virtualbox guest os: CentOS 7. Installed all the prerequisite libraries. when I have run the rpm command it is not able to execute that ...
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1answer
26 views

Virtual Box Bridged network failed to get IP (DHCP) No DHCPOFFERS received

I am newbie in networking and virtual box configuration, I have spent several days dealing with this problem. My goal is to get Bridged network working. When I try to UP interface in my Virtual Box ...
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1answer
44 views

DNS not functioning on command line

I recently did a combination of Vagrant + VirtualBox stuff on my machine to try to get a virtualized Ubuntu install working. However, I had no luck with it so I just uninstalled everything. Ever since ...
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0answers
128 views

How do different virtual machines handle CPU scheduling?

When you give a guest OS multiple virtual CPUs (vCPU), the virtual machine has to assign them to physical CPUs (pCPU). I can't find any info on how most VMs handle this. There are 2 broad categories: ...
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3answers
2k views

Lagging screen with Windows 7 guest machine running Oracle Virtualbox

My guest machine screen is very lagging, open a window then minimize it will remain the unresolved drawing on the guest OS's desktop. I try to increase the display adapter memory size but it doesn't ...
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2answers
3k views

Linux 64bit on Virtual Box with window 7 profession 64 bit

I have HP ProBook 450 G1 Laptop with Window 7 Professional. It is Intel Core i7 and it claim it has Virtualization Technology. But I can't find it in Bios to enable it. Now I installed Oracle Virtual ...
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1answer
42 views

What is causing this Ubuntu boot failure?

Got this screen, it doesn't react. I cannot move further at all. I've searched extensively online, but didn't didn't find anything helpful. I thought it's a connectivity issue between my screen ...
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1answer
17 views

Can't find one virtual machine whose network IPV4 is DHCP enabled

I had a virtual machine which I connect remotely from my windows machine. Virtual machines TCP/IPV4 property was assigned one static IP address by the network administrator. I have changed that from ...
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1answer
33 views

Chrome & IE can't access local website, while Firefox can. How to debug?

1. Enviroment 1.1 Host machine Windows 8.1 Enterprise Chrome v42.0.2311.152 Firefox v38.0.1 IE v11.0.9600.17031 VirtialBox Vagrant 80 port forwarded to port 80 at guest machine at 192.168.56.101 ...
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3answers
27 views

How does virtualbox get the network configurations?

I am installing CentOS 7 on virtualbox. On "Network & Host Name" screen: When toggle the "OFF" to "ON", I can see the IP, DNS, netmask are all configured: I am curious about how does ...
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0answers
23 views

Windows 7 - VirtualBox - OpenVPN - Ubuntu 12.04

I have Windows 7 64bit Professional. On this I have installed a VirtualBox with Ubuntu Server 12.04. OpenVPN is installed on both. I need to allow internet on Ubuntu and I also need to connect to a ...
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1answer
4k views

Cannot set 16:9 resolution on ubuntu 12.04 run in VirtualBox

I recently installed virtualbox. I tried to run ubuntu 10.04 and it worked fine in fullhd resolution. Then I installed Ubuntu 12.04 and now when I to setup up any fullhd resolution UI becomes very ...
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2answers
5k views

Starting VirtualBox machines fails with “Unable to load R3 module … VBoxDD.DLL (VBoxDD)”

Starting any machine on VirtualBox 4.3.22 on Windows 7, is failing with the following errors: Failed to open a session for the virtual machine Kivy. Unable to load R3 module C:\Program ...
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2answers
31 views

Interacting with VirtualBox using phpVirtualBox

I have VirtualBox up and running on my Linux machine. I've installed Apache and PHP, and have http://sourceforge.net/projects/phpvirtualbox/ up and running. I created a new virtual machine using ...
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0answers
13 views

Resume installation/download after saving state of VM

I'm using VirtualBox as a VM and I was wondering the following. If I am doing an installation of some sort (lets say. windows updates) and it seems to take longer than I want... If I were to save my ...
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1answer
21 views

how compatible between virtualbox 4.2 and 4.3?

I plan to upgrade my virtualbox to 4.3. But all my guest OSs (win7, linux) are created under 4.2. Will the upgrade cause any problem in virtual machines? I do not want to reinstall all my guest ...
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0answers
54 views

How do I prevent my vagrant box from shutting down on switching wifi networks?

Every time I switch WiFi networks, my vagrant box shuts down, and I have to do vagrant up, then vagrant ssh to get it back up. Is it possible to change this behaviour? My vagrant box runs atop ...
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5answers
17k views

Unable to uninstall virtualbox network drivers

Last time I tried to uninstall virtualbox, it failed with a BSOD. Since then, I am unable to install any version of virtualbox. The uninstaller seem's to fail to. When i look in my network drivers ...
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4answers
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Can't access internet in kali virtualbox

I have Kali linux installed on Virtualbox 4.3 and my host OS is fedora 19 i have bridged the VM with fedora but in kali it said that device not managed. is there anyway to fix it? thanks.
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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 ...
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1answer
16 views

VT-x on 4790 on H97-D3H-CF

I am trying to enable VT-x on a 4790 CPU and a H97-D3H-CF mainboard to be able to run virtualbox/vagrant. The Intel Processor Identification Utility lists "Intel(R) Virtualization Technology: No". I ...
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0answers
16 views

Guest OS in Ubuntu 14.04 cannot access internet with NAT mode

In ubuntu 12.04, Vbox 4.2.30 there is no problem at all. However, in 14.04, the guest OS like win 7, win 8, win 10, cannot access internet. The guest OS can actually get the ip and ping the gateway ...
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3answers
8k views

Use VirtualBox to boot a physical drive/partition

I have two partitions on my hard drive, one for Windows and one for linux. I would like to use VirtualBox in Linux to boot the Windows partition as a virtual machine. How can I acheive this?
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5answers
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VirtualBox from an existing partition

I installed VirtualBox on my Ubuntu Hardy Heron installation, and I would like to use it to virtualize Windows for those rare occasions that I actually need to do something there. Unfortunately, I ...
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point multiple ip address to hosting

I have centos server, earlier it had 1 ip [ a.b.c.d ] (external ip , eg., 141.101.114.59). Now, I bought 2 additional ip [b.c.d.e , f.g.h.i] (external ip , e.g, 190.93.244.58 , 130.93.245.8 ). I have ...
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2answers
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Forcing monitor resolution in VirtualBox VM on Linux Guest

I am working in a VirtualBox 4 VM running Slackware-current. I have added an external monitor, and am attempting to set up both of them to run in their native resolutions, but am having no luck. I am ...
0
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1answer
12 views

How can I change the admin username in phpVirtualBox

I am using phpVirtualBox. The default setup adds a user with username: admin and password: admin. I can change the password, but can't seem to change the username. How can this be accomplished?
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1answer
2k views

Installing Mavericks in VirtualBox

I would like to install Mavericks in VirtualBox. I tried different solutions but I can’t get this work. First I downloaded Mavericks from the app store. Then I converted the InstallESD.dmg to an ISO ...
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1answer
23 views

Network printing in FreeDOS (VirtualBox) to a Shared Windows Printer?

I have a scenario with a printer on a Windows 8 machine that needs to be shared to a FreeDOS instance that is running on same said machine via VirtualBox. Initially I'd hoped that there was a printer ...
0
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3answers
6k views

Cannot access virtual machine via ping from the physical host machine

I'm installing a FreeBSD Server on VirtualBox. I set up the IP address (192.168.10.5) for the virtual server to run a mail server and the host computer(Windows 7) with 192.168.10.184. The two machines ...
9
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5answers
37k views

VirtualBox/Ubuntu full screen mode resolution

I created an Ubuntu 14.04 desktop VM using VirtualBox, and installed guest additions. By default, at startup, VBox wants to present the guest's GUI in a parrticular size that is smaller than my actual ...
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1answer
20 views

VirtualBox and non-system disk fragmented to 41%?

I've installed VirtualBox reccently and have been playing around with installing different systems and working with them. I've created five different virutal machines: Windows 10 Technical Preview ...
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1answer
15 views

Solr configuration CentOS7 VM

We have installed a CentOS-7 in a VM using VirtualBox. Also, we have set the network configuration to use a proxy in order to have internet access. In the VirtualBox Network configuration we have ...
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0answers
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Can't access rails server on VM form host

I have a rails server on virtual machine and I need to access localhost from host. I've tried both NAT (by port forwarding - port 80 and 3000 on the guest side) and bridged adapter but nothing seems ...
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0answers
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VirtualBox startup issue

Here is the full log for VirtualBox startup issue: 160c.16c4: supR3HardNtViCallWinVerifyTrustCatFile: cbHash=20 wszDigest=C75E94FF3BF78694A128A7B4083A02F169494F95 160c.16c4: ...
2
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1answer
17 views

Create Server on VirtualBox visible from outside, host is not behind router

I am trying to create a web server on a Virtual Machine. I would be happy even if I could access it with something like http://xxx.xxx.xxx.xxx:[port_no] Everything is installed but the step of facing ...
3
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2answers
4k views

How to release mouse from VirtualBox?

I've got Oracle VirtualBox 4.2.10 installed on Ubuntu 12.04, and with evry virtual machine I create, the "host key", which is supposed to release the mouse doesn't do anything. I've already installed ...