VirtualBox is a platform independent open source virtualization software available for Linux, Solaris, OS X, and Windows hosts. Guest additions need to be installed to automatically adjust the guest screen resolution. USB is supported through a proprietary extension.

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Effectiveness of virtualization in bios on virtualbox

I downloaded virtualbox to run Ubuntu. I ran into an issue with running 64 bit virtualbox, as my PC seems to not have the option to run virtualization in bios. Because of this, I only have the option ...
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191 views

network access through proxy server with virtualbox

In the company that I work, we have Windows 7 installed on all PCs. We don't have internet access through Windows but can set proxy settings in Firefox and can thus access the Internet. I installed a ...
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36 views

MAAS not accessible on my virtualbox after installation

I installed MAAS on my ubuntu server which is running on a virtualbox hosted on windows 8, i tried accessing it from another node on the VM but its still not going. I read somewhere that i need to ...
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17 views

VMs connected user ip problem

I have a server and on the server running ubuntu 14.04 Vbox 4.3, and php virtualbox 4.3.1. So my problem is - I run TS3 servers, and Gameservers from the VMs and if someone connect the server and i ...
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23 views

Virtualbox on Ubuntu 14.04 - Windows 7 VM keystrokes work 80% of time

Is there a way to adjust the keystroke sensitivity on a Virtualbox VM in Ubuntu 14.04? When typing in my Win7 vm (I'm using seamless mode), I have to type very slowly and push the keys PERFECTLY for ...
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88 views

Ubuntu 14.04 on VM on Windows 8.1 won't restart!

I have installed Ubuntu 14.04 64bit on my Windows 8.1 inside a Virtual Machine (VM VirtualBox). When I restarted my ubuntu, I got the following: It freezes and nothing happens! The only warning ...
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25 views

Mouse scroll in VBox

As most of you know, Ubuntu, unlike Windows, has a handy feature that allows you to scroll with two fingers on a touch pad. I am running Ubuntu from virtual box on windows and of course that does not ...
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168 views

VMWare WindowsHost + Ubuntu Core + Docker + Ubuntu Unity?

I am new to Docker, and until now I didn't need it in fact. Recently, I bought WindowsTablet, SurfacePro2, and I want to keep using WindowsOS for the hardware compatibility and optimization. ...
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70 views

Screen resolution on ubuntu 14.04 does not change even after installing VBoxGuestadditions

I tried to increase the screen resolution of my Ubuntu VM hosted on VirutalBox 4.3.12 after installing VBOXGuestadditions, however, it does not seem to increase the screen resolution all that i see is ...
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84 views

Virtualbox with Host Ubuntu and Windows 8.1 as a guest running IIS

I want to run an IIS Express server inside a Windows 8.1 machine and access the address from my Ubuntu host. However, no matter how I configure the network I cannot access the address, even thought ...
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90 views

Vagrant snapshot installation problem. Ubuntu 14.10

I have some troubles with vagrant snapshot installation. I have vagrant(1.4.3) and virtualbox(4.3.18). I'm trying to install snapshot plugin via sudo vagrant plugin install vagrant-vbox-snapshot and ...
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84 views

libvirt-bin Remains in Stopping State When kvm Guests are Running - 14.04.1

I'm trying to ensure that any guest KVM virtual machines gracefully shutdown when the host server is shutdown/rebooted. I'm running Ubuntu Server Trusty Tahr (14.04.1) with following versions of ...
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80 views

nvidia-settings does not recognize displays

I'm using Ubuntu 14.04 on an Alienware 14 (2013), with a GeForce GTX 765M. I'm also using the recommended nvidia drivers (331.113). Here's the deal: nvidia-settings doesn't recognize any of my ...
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67 views

Virtualbox error after updating ubuntu 14.04 server

after Updating my Ubuntu 14.04.1 x64 server Last night (15 Jan 2015), virtualbox error: The selected virtual machine is inaccessible. please inspect the error message shown below and press the ...
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625 views

vboxmanage startvm “could not find a registered machine named .. ”

I have a host machine with Ubuntu 14.04.1 LTS trusty as the OS and I use VirtualBox on it to manage a web server running on a vm. I have a script that runs at startup which runs this command: ...
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108 views

I can't read a USB HDD in my Ubuntu 14.04 VM (VirtualBox 4.3, Windows 7 host)

I've installed (and reinstalled) VirtualBox 4.3 with the Extension Pack on my Windows 7 host, and created USB filters to hand a few specific WD 4TB My Book drives straight to the Ubuntu 14.04 guest ...
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59 views

Start a VirtualBox VM from a PHP script

I can start a VM from the console like so... vboxmanage startvm --type headless UbuntuVB64 But when I try in PHP, I have issues: vboxmanage startvm --type headless UbuntuVB64 gives: VBoxManage: ...
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45 views

Increased partition size of virtualbox installation succesfully; can't address extra space

and thanks in advance for reading. So I installed Ubuntu desktop (version 14.4) on my 64 bits Oracle VirtualBox (version 4.3.20). All fine. I gave it 10 GiB's of space. Also fine. Run it on an i7 and ...
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79 views

Unable to decrypt disk on normal Lubuntu boot

I'm having trouble starting up my system. I use VirtualBox to run Lubuntu 14.10 on Mac OS X 10.10.1 host. I have used the built-in disk encryption available when installing (L)Ubuntu. When it boots ...
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80 views

VirtualBox shared folder Apache and MySQL access

I've got some problems with Ubuntu 14.04 Desktop Guest on Virtualbox. I have shared folder from Win 8.1, in which I keep my www and mysql files. mysql and www-data users are added to vboxsf group: ...
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140 views

Genymotion doesn't shows virtual device that was added when I start it

Recently I installed oracle virtual-box on my ubuntu 14.10 as I wanted to run a android emulator Genymotion on it.I installed Genymotion and added a MOTO-X 4.4.4 virtual device to it intially. ...
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47 views

VirtualBox networking can be enabled only via recovery mode

I've installed ubuntu server with minimal system without network connection (disable network adapter) in VirtualBox, because my connection is so slow and it's take forever to install with network ...
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40 views

Unit hang on Ubuntu 14 as guest on Virtualbox on OS X Host

I'm using ubuntu as virtual machine for development using VirtualBox on an OS X host machine, every while the guest machine (Ubuntu) freezes and display strange errors (on the following images).
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81 views

Ubuntu 14.04 starting without (defect) GUI in Virtual Box

I have Ubuntu 14.04 running on a VM in Virtual Box and it has been working perfectly for a while. Guest-additions were installed. Now after signing in, all GUI-elements disappear and I only have the ...
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22 views

Connect my computer with ubuntu server

I'm trying to connect my windows PC with an Ubuntu server that runs in the same PC but in VirtualBox. I'm working with node.js, so if I press some button in my app in windows, some command will be ...
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295 views

Vagrant with VirtualBox - login/password mystery

I am using Vagrant which creates an Ubuntu virtual machine on Windows. I can use that vm with Oracle's VirtualBox. However, now I am confused about why it's asking for a login/password. Does anyone ...
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24 views

Any guide to run Nginx alognside Apache2 on Ubuntu 12.04 Server (VirtualBox)?

Is there any guide/tutorial/links for running Nginx alongside Apache2. If yes please provide the same ASAP. I'm running Ubuntu 12.04 server on Virtual Box. I had already installed & working ...
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63 views

Test Apache2 default page on windows 7 browser (Virtual Box)

Successfully installed apache2 on Ubuntu 12.04 server (Virtual Box). I'm having windows 7 as host machine & want to access apache default page on windows browser How to access/test apache2 on ...
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112 views

3 Errors Running Ubuntu Gnome 14.10 in Virtualbox 4.3.20

I've been trying to successfully run Ubuntu 14.10 in Virtualbox, but I've not been able to do so due to some 3 errors I am receiving when doing so. Error 1: Error 2: Error 3: At first when ...
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35 views

Facing some problems with Ubuntu, Need your suggestion?

These are some of the problems I am facing after I have installed Ubuntu: My Ubuntu display often gets blurred? I have installed Virtualbox and it runs very slowly? If it is because of the low memory ...
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50 views

fstab not mounting

I am trying to change the default mount point virtualbox uses in my Ubuntu VM. With the virtualbox settings, I have this in my shared folders settings: My actual username replaces 'username' in the ...
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90 views

openstack icehouse 14.04 fatal error

hello everyone i fallowed the steps from the below site to install openstack icehouse single node http://ubuntu-cloud-installer.readthedocs.org/en/latest/single-installer.guide.html i am getting a ...
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270 views

Ubuntu 14.04 amd black screen in VirtualBox

I have a problem with my VM on my work computer. I had it in VirtualBox 4.3.16 on Windows 7 64-bit host, running Ubuntu as a guest. It was working fine, just a bit slow because my computer had limited ...
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25 views

Aptana stopped working

I have been using Aptana Studio since last two-three weeks for python and erlang development. Yesterday, Aptana notified me about the erlide updates and I installed it and then there was a aptana ...
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23 views

ubuntu guest network issue

On my Mac host, in Virtualbox->Settings->Network, I chose Bridged Adapter and en1 Wi-Fi (Airport) interface, check marked Cable Connected. On the ubuntu guest, eth0 is assigned ip address in the same ...
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34 views

xUbuntu virtualbox instance black and blank

My Oracle VirtualBox xUbuntu was complaining about not having enough space to create a tmp/ directory. This was happening in the terminal every time I tried executing a command. To solve that problem ...
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302 views

Not able to connect to Cisco Anyconnect VPN

I am using Ubuntu 14.04.1 LTS and Cisco AnyConnect Secure Mobility Client Version 3.0.4235. When I try connecting to vpn, I get error message as "AnyConnect cannot confirm it is connected to your ...
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89 views

Virtualbox-Failed to open a session for the virtual machine in ubuntu

**Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE). Details Result Code: NS_ERROR_FAILURE (0x80004005) Component: Console Interface: IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6} plz any ...
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102 views

How to increase Graphics peformance in Ubuntu 14.04 running as a guest in VIirtual Box?

I'm relatively new to Linux, I have played around with Ubuntu for 6 months but not a Linux Expert so please try helping in newbie terms I have Ubuntu 14.04 Running as a Guest in a Windows8.1 Host ...
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202 views

VHD Native Boot via windows 8 boot loader

ok so ive just finished my last class for the semester and in the next few days after my certification test i plan to reformat my pc. i will be installing windows 8 via a .VHD native boot. i will be ...
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58 views

Guest OS booting hangs in virtualbox

I am running virtualbox 4.3.10 in ubuntu 14.04 LTS. I have a working guest OS of open suse 13.1 in this virtualbox. What I have done I exported this appliance to ova file, so that I can use it in ...
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20 views

Recovering 12.04 running in virtualbox

I'm running ubuntu 12.04 as a guest in virtual box on a Windows 8.1 host. The system keeps freezing when it does not have the mouse or keyboard captured (not happened when it does have it captured ...
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41 views

Problem in virtual box

I've recently installed Ubuntu 14.04 in a virtual box. When I try to use it the desktop doesn't work. If I press Ctrl+Alt+F1 the system asks me to enter the username and password and it seems to work ...
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49 views

Problem when trying to start OS in virtualbox

Any OS I try to start in VirtualBox shows the following error: Failed to open a session for the virtual machine 71. Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE) and it shows in "Details": ...
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69 views

Virtualbox server 13.10 port forwarding through router access to static IP/internet

I have an Ubuntu 13.10 server guest setup in Virtualbox (I have a windows8.1 machine). My question is: how to setup port forwarding to access the webpage from the internet. I have disabled the ...
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33 views

Network configurations and client/server operating system

I am working on a project for my operating systems class. I'm having difficulty fulfilling 2 requirements for it. It asks for 5 network configurations for Ubuntu Gnome and what client/server operating ...
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42 views

Problem With Ubuntu Server; Gives Weird IP And IP Timesout In Browser

I've reinstalled the server OS a few times in a VM and every it launches fine and you'd never know anything is wrong until you put in ifconfig and it spits this out: inet addr:10.0.2.15 ...
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53 views

Empty virtual consoles in 14.10 on virtualbox

The boot process and the virtual consoles has no visible output. I can log in and start programs but everything is invisible. The gui and xterm are working normal. Virtualbox is 4.3.20 and the problem ...
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131 views

Why my VM Ubuntu works always slowly?

I am very new to Ubuntu. I started to run the Ubuntu 14.04.1 from VirtualBox 4.3.18 on a mac 10.0 (upgraded from 10.6.8) since last week and it was extremely slow. I followed the suggestions here by ...
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488 views

Ubuntu VM on Virtualbox keeps aborting

I have Virtualbox (v4.3.18) installed on my Mac X (10.10) and created a VM with Ubuntu on it (ubuntu-14.04.1-desktop-amd64.iso). After the installation was completed, it asked to reboot, and when I ...