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

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How to redirect TCP traffic from one virtual machine to another in Linux?

What is the simplest way to redirect all TCP traffic from one virtual machine to another in Ubuntu Linux and reverse? And what type of connection I suppose to use in VirtualBox?
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25 views

Why this vagrant file creates 7 network interfaces rather than 3?

I want to do some testing to compare dhcp vs fixed ip of host-only network of virtualbox. I have come up with this Vagrantfile: # encoding: utf-8 # -*- mode: ruby -*- # vi: set ft=ruby : ...
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7 views

Ubuntu 10.04 task-bar content not right aligned in virtual box

I installed Ubuntu 10.04 in VirtualBox. I installed the guest additions. My display resolution is set to 1920x1080 For some reason, my task-bar content doesn't right align. Have a look at the ...
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1answer
66 views

VirtualBox with inaccessible snapshot

So I have a VM done with VirtualBox a few year back, then, 2 years ago, I created a new one using the existing HDD, so VirtualBox decided it will create a differencing HDD instead of a new one like I ...
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14 views

How to use VirtualBox on raw disk where I have my system

I have a dualboot on the same physical drive, but not on the same partition. In windows, I'd like to use virtualbox to boot on linux, like that: VBoxManage internalcommands createrawvmdk -filename ...
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108 views

Vagrant up command not working

When I do vagrant up command, I get the following error: There was an error while executing `VBoxManage`, a CLI used by Vagrant for controlling VirtualBox. The command and stderr is shown below. ...
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109 views

Genymotion resets VirtualBox networking to “Host-only Ethernet Adapter”

After some (VMWare) deinstallations Genymotion virtual machine can't access Internet. In VirtualBox networking settings there is "VirtualBox Host-only Ethernet adapter set". Ok, I change the adapter ...
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40 views

Mouse Cursor Dissapears in VirtualBox (windows 7)

I am currently trying to install os x mountain lion as a guest os on my windows 7 pc so that i can use Xcode. I am using this guide: ...
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29 views

Unable to port forward to VM through loopback (127.0.0.1)

I have a somewhat strange issue on my PC where I am unable to reach a Virtual Box VM with port forwarding through 127.0.0.1. It will however work through 127.0.100.1, or 127.x.x.x for that matter. I ...
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23 views

VirtualBox on QEMU host?

I have remote access to a QEMU Windows Server 2012 (64 bit) VM with 12 cores @ 2.8 GHz ("QEMU Virtual CPU version 2.0.0") and 48 GB RAM. For a project I wanted to set up a Linux VM on VirtualBox on ...
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294 views

Make Genymotion use a host VPN

I'm using Cisco's AnyConnect to connect to a VPN using my Windows 8.1 PC. When using the Genymotion emulator, I would like it to use the VPN too. However, although having Internet access from the ...
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88 views

Virtualbox - Windows 7 x64 slow loading

after moving *.vdi files to my new notebook I noticed that it takes long time to boot WIndows 7 x64(on 2 different VM's) on Windows 8.1 x64. That VM's worked perfectly on my home PC on Windows 7 X64 ...
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1answer
107 views

How to install wireless card on Kali Linux

I setup Kali Linux on VirtualBox. In terminal, airmon-ng command not showing up any wireless card. I've search for solving problem and here is the video that i follow: ...
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1answer
25 views

Oracle Virtual Box current version no option for Win8.1

I'm trying to install the Win10 64Bit technical preview in VirtualBox VM, but I keep getting errors. While digging into this I found online many suggestions to set the Windows version of the VM to ...
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1answer
360 views

Can't set manual IP to Virtualbox Host Only adapter in CentOS 6.5

When I configure the IP address of VirtualBox 4.3.2 (running on Windows 8.1) host only adapter, it changes it back to some other IP. Guest OS is CentOS 6.5. I tried to set the IP in network ...
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25 views

Will a VM in VirtualBox crash, if I spend too much ram on other app in host OS?

guest OS won't boot if the freed memory is too low, but what if it boots, and then I accidentally use too much memory on host OS on other app, will the guest OS crash?
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3answers
157 views

Cannot SSH into VirtualBox guest OS from host OS, but can SSH from other guest OS machines

I have a weird situation where I can SSH into my VM from another machine on the network, but not from the host itself. Vital stats: Host: OS X Yosemite Guest: Ubuntu 14.04 VirtualBox version: 4.3.16 ...
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32 views

Virtualbox Network Adapter Not Found on Import

I am running VirtualBox on Ubuntu 12.04 on an old box. VMs are configured for bridged networking. I have recently setup a new box with Ubuntu 14.04 and imported my VMs from the old box to the new ...
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186 views

Not able to install Windows 10 on oracle virtual box

I have installed ORACLE virtual box in Windows 7 machine and created a VM for windows10 technical preview with the following settings: Guest: iso: Windows10_TechnicalPreview_x64_EN-US_9926 Machine ...
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298 views

Can't install Guest Additions Ubuntu 14 in Vagrant

I am trying to install the Guest Additions in Ubuntu 14, but I always get an error when install Virtual box guest additions. I have installed all the headers. Can anyone point we to what it could be ...
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53 views

Samba, guest account for sharing user home directory

I have a user named vbox, created to manage the Orable VirtualBox on my Ubuntu Server 14.10. I want to share the /home/vbox/VirtualBox\ VMs/ to be able to share this files via samba. I created this ...
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313 views

I can't access my server on VM (VirtualBox) in centOS 7

I do install VirtualBox on Windows 7, and create a virtual machine, which install centOS 7. Then in centOS7 perform the installation of CollabNet Subversion Edge, following this information as a guide ...
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78 views

CD/DVD drive not found in VirtualBox Windows 7 guest / Ubuntu host

I'm trying to install Windows 7 in VirtualBox to try an Spanish Version for a customer. I'm using an ISO file with the Windows 7 image. After the machine is done loading the installation files, I get ...
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2answers
116 views

Virtualization on Windows 10 not working

When trying to install VirtualBox on Windows, I got the following error. The version is VirtualBox-4.3.20-96997-Win. I have reviewed this question and it's not the same issue. More info just says ...
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90 views

Network issue with CentOS 7?

I have a VirtualBox machine running CentOS 7. The host is my Mac and the I'm using bridge adapter mode for the VM. Looks like I’m unable to install (yum) updates or even (yum) net-tools. I’m getting ...
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27 views

How to share wifi connection between Guest OS(Windows XP) and Host OS(Ubuntu 14.10)

I just installed Windows XP through VirtualBox and installed "Guest Additions too" too. How do I go about sharing my wi-fi connection?
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67 views

VM image inaccessible in Virtual Box

I have Virtual Box installed on base OS RHEL 5.5. I am using Windows 7 as a VM image on Virtual Box. While transferring a folder of 600MB on Windows I got a Virtual Box error saying Memory limit ...
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38 views

Error in installing Mirantis Openstack on windows 8.1

I am trying to install Mirantis Openstack on my windows machine(8.1). The entire process i have done till now is: Install oracle virtualbox with extension pack Install cygwin Install procps, ...
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1answer
95 views

Run commands on an Ubuntu guest in VirtualBox VM from Windows host

I am working on some coding, and I have an idea that should work but I have no clue how to make it work. I am using Wolfram Mathematica on my Windows host machine to run some code, but I have to ...
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36 views

How to make application installations permanent with Linux Mint in a VirtualBox?

I installed Selenium, PyCharm and more software on Linux Mint in VirtualBox. However, once I exit the Mint and VirtualBox and login back later on, I find the installed software to be gone. I get a ...
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1answer
28 views

Win Server 2008 DHCP on Virtual Network

I'm new to network stuff. I have 2 virtual computers running in VirtualBox: 1 on Win XP and 1 on Win Server 2008. I'm trying to create a DHCP server and DNS server on my server. I know how to add ...
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1answer
13 views

Linux Watch Memory Command

I am using watch -n 5 free -m command via terminal to watch the memory fluctuate as I run virtual box with a guest that is limited to 4GB of RAM(it allocates 4GB on start of virtual guest). Under ...
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35 views

ssh into fedora inside virtual box over internet

I am running fedora server in a virtual box inside a windows 7 host. I can ssh into fedora from this windows 7 host. How ever, I stay out of my place most of the times with a laptop at my disposal, ...
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41 views

Linux virtualbox machine ssh from host

I've recently created a CentOS 6.5 Virtualbox machine. (Portable-Virtualbox) This is currently a replica of the CentOS 6.5 desktop that I use as a file server. In order to use this Virtualbox CentOS ...
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1answer
34 views

Any benefits of VT-x for 32bit guest?

I am going to be deploying a network of 32bit guest systems. I will be running one core per VM (but multiple VMs per host), memory usage is low (<512MB per guest). Is there any benefit (or even ...
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37 views

Access from Win 7 inside Virtualbox to EXTERNAL Samba Ser

even after reading two days of information I havn't found a solution for my problem. I hope You can help me. I'm running Win 7 inside in a VirtualBox. The Virtualbox itself is running on an openSuSE ...
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1answer
52 views

Virtualbox: Windows 7 raw disk guest on Linux suddently boots stop 7b

I spend most of my time in Linux, but for as rarely as I use Windows I load my dual-boot partition in Virtualbox 4.3.20 via raw disk access. I've set this up on a few machines and I've been using this ...
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58 views

SSH using Agent Forwarding with Windows Host OS, Vagrant Ubuntu Guest OS, and Keepass/Keeagent

Intent: To be able to deploy to lan-example.com from any dev environment; whether it be directly from the virtual OS, or any single-OS system, or even over the internet using ONE SSH key stored in ...
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80 views

Error code C4 when installing Windows Server 2012 on VirtualBox

I am getting error code C4 when trying to install Windows Server 2012 on VirtualBox. I was able to install this a few weeks ago. However I had to install a fresh copy again. This time however I always ...
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1answer
56 views

Create virtual disk from some of the partitions on physical device

I am in the process of migrating windows installation to a VM. On the physical device with windows, there are two partitions: /dev/sda1 and /dev/sda2. There's also a large amount of free space ...
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1answer
23 views

Syncing virtual machines - dynamically allocated or fixed allocation VHD?

When you run a virtual machine that you want to periodically sync, is it generally faster to use a dynamically allocated VHD or a fixed allocation VHD? I'm sure this depends on a lot of factors, ...
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35 views

Can't boot with USB 2.0 enabled [Virtual box]

I need to use USB 2.0 on Virtual box for Windows 8.0, my host is Windows 7. I Installed the virtual box extension pack so I have the option to to this. However, when I enable USB 2.0 I cannot start ...
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1answer
41 views

Guest connected to the internet through the host in Virtualbox host-only network

I have a host-only network in virtualbox. The guest is Windows and the host is ubuntu. Is it possible with this configuration to connect the guest to the internet via the host? So that all the traffic ...
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1answer
39 views

Why grep shows me output that does not contain the search word?

I want to check if the sensu service is installed. I ran this command service --status-all| grep sensu and here is the output vagrant@vagrant-ubuntu-trusty-64:~$ service --status-all| grep sensu [ ? ...
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1answer
677 views

run windows 10 on oracle vm virtual box, error your pc need to restart

I'm using windows 7 64 bits, CPU: dual core T4500 does NOT have virtualization, 3 Go of Ram. I want try Windows 10 I have download the Iso, Install Oracle VM and set up it, when I run the vm, I see ...
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20 views

browsing apache via vm

I have centos 7 running as a guest on my mac with virtual box. I am trying to browse the apache server from my macs browser but I am just getting web site is not available. I set the network settings ...
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1answer
21 views

How can I start my virtualbox instance with the same state?

Is it possible to save a state of a vm in virtualbox, and from then always restart this vm by restoring the state ? My problem, is that the state is deleted after restoration, and I can't restore it ...
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35 views

How to supress syslog from displaying messages to console

I have a docker container(phusion/baseimage-docker) running inside of VirtualBox virtual machine. When I attach to the container I constantly see the output of syslog(cron logs for example) which ...
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1answer
80 views

How can I connect to MongoDB on my Mac OSX from a process on a Vagrant/Virtualbox machine?

I can't use localhost because from my virtual machine's perspective localhost is the virtual machine itself and not the underlying host that it is running on. How can I connect to the host machine ...
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1answer
65 views

Cannot run VirtualBox after crash, acceleration not available

I know that has a lot of topic like this, I've tried them a lot as well but my problem is not solved. My laptop has Core i3 and I used to use VBox just a few days before. When RAM got up to 99% my ...