VirtualBox is a platform-independent open-source virtualization software available for Linux, OS X, Solaris 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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Unable to mount/access Virtual Box Guest Additions

I checked many questions on this topic but none worked for me. I keep getting the error in the image shown below. There is nothing under the media folder to install manually too. The mount just fails. ...
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27 views

Reverse DNS Lookup on ubuntu inside virtualbox

I'm using Ubuntu 12.04 inside virtualbox on win7 using NAT for networking. I had to run the command : VBoxManage.exe modifyvm "Ubuntu" --natdnshostresolver1 on Which basically tells the guest to ...
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MAAS/VirtualBox Calling 'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed and SSH fails

Setup For testing purposes, I installed MAAS in a VirtualBox VM and I want it to PXE boot a second VM. Both VMs are connected to a VirtualBox internal network. The MAAS VM is a Ubuntu Server ...
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81 views

Resolution issue with Ubuntu 14.04 on virtualbox 4.3.28

I have installed virtualbox 4.3.28 on windows 8 64 bit. I installed ubuntu 14.04 lts b3 bit on it. I am having low resolution problem in it. I followed many blogs and forums but no luck till now. ...
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62 views

Enable eth0 without plugging cable to connect to virtualbox bridge

I'm using Ubuntu 15.04 with NetworkManager. I have internet connection on wlan0(dhcp, 192.168.1.0/24) and static ip on eth0(local network, 192.168.124.1/24). On my virtual machine in VirtualBox i ...
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146 views

Which emulator I can use for Install Ubuntu phone and Android dual boot virtually?

I do not have any smartphone. But I want to use and test Ubuntu Phone virtually. And also in that virtual device I want try to install triple boot system. That means I want emulator in which I can ...
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40 views

Can't boot ubuntu 14.04 on virtual machine

I have been using Ubuntu on Windows 7 through an Oracle VM VirtualBox. A few days ago, my password started to be asked in order to login on graphical mode (before, my password was never asked and I ...
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29 views

How can I migrate a ubuntu virtual machine which is hosted on windows Vbox to dual boot ubuntu and windows

okay, so if the title of this question does not clarify my question, here is the explanation I have a laptop with windows 8.1 and I'm running ubuntu as a virtual machine on it using VirtualBox, and I ...
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52 views

problem on display resolution while using VirtualBox to run Ubuntu 14.04

I am a new guys on Linux and I have installed Ubuntu 14.04 from VirtualBox which run on my desktop Windows 7. After successfully installed I have found the display resolution only have 640x480 and ...
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66 views

Can't login into Ubuntu VM

I've installed Ubuntu 14.04 32 bits into VirtualBox on a Windows 8.1 32 bits, but when I try to login, it just sits there for a while thinking, a black screen pops and it goes back to the users, it ...
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84 views

can't change keyboard layout to german on ubuntu server

I have a fresh installed ubuntu server in a virtualBox and am trying to set the keyboard layout to german, but don't succeed. I have installed and configured dpkg-reconfigure keyboard-configuration ...
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37 views

nc command: conflict between different Ubuntu machines

I am using Ubuntu 14.04. Then I have an Ubuntu 12.04 machine running on virtualbox. On the virtual box machine I listened on port 12345 using the command nc -l 12345 And on the host machine, I ...
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53 views

Setup Windows 7 Virtualbox notifications in host Ubuntu

Is there any way to setup notification (such as a message from Skype or Lync) coming in the Windows OS running inside a Virtual Box to be notified in host Ubuntu (At least something like highlighting ...
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239 views

Ubuntu Host in VirtualBox has long delays before startup

I run Ubuntu in virtualbox on a windows 8.1 host. After some updates of the guest, it started to have lags/delays before it starts. It also shows some warnings. After it starts, everything is fast. ...
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59 views

Why do I need to restart Ubuntu 14.04 LTS for my networking scripts to work?

When I started using 13.04 LTS on my Virtualbox VM (4.3.26), I turned off network manager and wrote some scripts for dynamically updating the static IP of my laptop on any network. I was doing this ...
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20 views

Sync Ubuntu computer with Virtual Machine instance of Ubuntu

Here is my situation. I have a laptop with Ubuntu 14.10 installed that I do my work on the go and I have now set up a VM of Ubuntu 14.10 using Virtual box installed on my Windows Desktop. I'm ...
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118 views

How to configure promiscuous mode rejected in KVM bridge?

I am using Ubuntu 14.04 (3.13.0-45-generic #74-Ubuntu SMP) as Host OS. KVM version 2.0.0 I have disabled promiscuous mode in guest Virtual Interfaces along with corresponding host vnet & bridge ...
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77 views

Use Zentyal on Virtualbox with Mac Mini host… Crazy?

We are looking at upgrading our current server system in my school. Right now we have Zentyal 3.* running on a standard desktop PC. We never upgraded since we didn't want to break anything on the ...
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52 views

Running windows 8.1 on virtualbox whils on ubuntu 14.04

I am very new to Ubuntu and Linux. I am currently dual-booting windows 8.1 and Ubuntu and I just downloaded Virtualbox. I am wondering if it is possible to run my Windows 8.1 OS with all of my ...
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144 views

Running vagrant inside VirtualBox

I'm running Xubuntu 14.04 in a VirtualBox VM on Windows 7. Inside the VM, I want to use Vagrant as part of my development environment. The Vagrant setup executes successfully, until it wants the VM ...
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28 views

Ubuntu 64 bit and VM VB

I am currently running the last stable 64 bit Ubuntu version on a VM with VirtualBox on W7 pro 64 bits. I have tried several configurations, with some the sluginesh almost dissapeared, but I cant ...
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80 views

How do I connect to my VirtualBox Ubuntu 14.04LTS from the host's public IP(or domain name)?

I've been having a hard time with this. It's probably been 3 days now... Anyway, I've set up my virtualbox on Windows7 with a bridged adapter (eth0). Installed LAMP server and it works. I can ...
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120 views

VirtualBox: Display Size too small!! Can't reach or see anything, that includes the terminal!

Because I was tired of virtual box saying to update (even before I had a feeling it wouldn't be a good idea), I though well let's just get it over with... I'm running Lubuntu 14.10 (32 bits the ...
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44 views

Intel iMac Ubuntu Installation Troubleshooting

I'm having terrible luck trying to install any flavor of Ubuntu on my 2006 5,1 Intel Core 2 Duo iMac. I've downloaded the 32-bit and 64-bit current and past version, as well as tried torrent ...
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183 views

i was trying to install ubuntu on virtual box in windows 8.1 and got an error

Failed to open the optical disk file D:\programm setups\ubuntu-14.04.2-desktop-amd64.iso. Could not get the storage format of the medium 'D:\programm setups\ubuntu-14.04.2-desktop-amd64.iso' ...
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47 views

Ubuntu installer is blank (can't select partition)

As of now, I am able to run Ubuntu Unity through VirtualBox. Now, I want to install Ubuntu to a partition, which I have already created AND formatted. However, in VirtualBox, when I click 'install ...
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53 views

Ubuntu Virtual Machine cant' mount directories /dev /sys /proc

I am running this Ubuntu Virtual machine on CentOS5- Virtual Host Manager. The Virtual machine can't boot because it can't mount /dev,/sys,/proc. Killed: mount: mounting /dev on root/dev failed: no ...
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54 views

Is it better to partition a virtual hard drive in VirtualBox?

I am installing Windows 8.1 under VirtualBox Under Ubuntu 14.04. Is it better to partition the virtual hard drive for Windows into system and user data, just to separate them as if I would install ...
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27 views

How do I automate permissions to the files in the shared folder to be accessible by both the host MacOS and the guest Ubuntu through VirtualBox?

I was working towards getting Ubuntu 14.04 set up in a VirtualBox, and I have achieved that. I also have it at the stage where it's mounting my shared folder automatically. The only remaining problem ...
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27 views

Protocol error when mounting in virtual machine

When running the following command in an Ubuntu 14.04 VM in a 14.04 host, I get a mount: protocol error mount -t vboxsf -o uid=1000,gid=1000 updatable /opt/apps/directory/updatable Guest additions ...
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160 views

Symlinks: Can't create one because file exists, cant remove it because there is no such file

I posted this already on stackoverflow and it was suggested I ask here... I am running ubuntu 14.04 in vagrant on a windows 7 pc. I am running VirtualBox and git bash as administrator. I've created ...
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75 views

Installed programs disappeared on Ubuntu Gnome 3

I'm using ubuntu for over two years now. Two weeks ago, I installed Gnome 3, and I'm pretty satisfy, how it works. However, today I had very a strange situation. When I tried to install new program, ...
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89 views

Ubuntu Server in Virtualbox working slowly for Ruby On Rails

I have quite big rails app to develop frontend for, most work with design involve Adobe Illustrator and Photoshop, tried run them in VM but they work very buggy. So decided to go other way - to run ...
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95 views

want to use new headless server with VirtualBox; startx hangs at extension GLX

ssh'ing into the server and running startx yields this. Background info that may help: I originally hooked up my monitor and keyboard directly to the box, but now wondering if there are some ...
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111 views

Ubuntu 14.04 LTS: Installed Ubuntu on latest Virtualbox 4.3.20. After login, I can only see blank screen. I am completely new to Ubuntu. What do I do?

Installed latest Virtualbox 4.3.20 on my Windows 8.1 machine. Then downloaded and installed latest Ubuntu 14.04 LTS .iso file from ubuntu.com After set up and all, the machine asked to restart. After ...
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220 views

Ubuntu 14.10 VirtualBox guest doesn't get IP from DHCP

I'm running Ubuntu 14.10 as host, and have tried a couple linux distros as guests, including Ubuntu 14.10. Each exhibits the same symptoms: they fail to configure the second network interface. ...
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707 views

“Vagrant Up” error

I entered "vagrant up" in the terminal and got this: /opt/vagrant/bin/../embedded/gems/gems/vagrant-1.7.1/lib/vagrant/pre-rubygems.rb:31: warning: Insecure world writable dir /usr/local/sbin in PATH, ...
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189 views

VirtualBox Ubuntu internet connection problem on Chrome ERR_ADDRESS_UNREACHABLE

I am a beginner Ubuntu user, I use it via VirtualBox. I was eligible to connect internet yesterday, but today I can't access most of the sites. For example I can search something in Google, but I ...
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84 views

Migrating from Windows 2000 (Server) to Ubuntu 14.10 (Server)

I'm BRAND SPANKING new to Linux. I'd really appreciate any help I can get with this. I've been tasked to upgrade a dying Windows 2000 box that acts as a file and print server. Sounds easy, right? ...
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68 views

How can I stop gedit crashing when using save as?

I keep encountering a problem when trying to use the Save As functionality in gedit when I am running a model that keeps creating files in the directory I am looking at. I have opened a file and ...
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114 views

VirtualBox installation in Ubuntu 14.04, throws an input output error

I am trying to install VirtualBox and I keep getting this error message in XTERM (and the Ubuntu Software Center) when I do sudo apt-get install VirtualBox: dpkg: unrecoverable fatal error, ...
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75 views

Trying to set up Apache Virtual Server on Virtualbox

I have set up an Ubuntu 14.04 server with a Lubuntu front end in Virtualbox. I now want to configure two virtual servers on this system (something I have already done successfully on Windows). I just ...
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91 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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47 views

Is it possible to access an Ubuntu server on multiple networks?

I hope someone can help. I have Ubuntu Server 14.04 LTS running in VirtualBox, running as a web server on my laptop. I take my laptop between home and work, so the network configurations are ...
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113 views

Only half of screen height in VBox seamless mode on secondary screen

On my secondary screen my Windows 7 guest in Virtual Box works fine in Fullscreen but not in Seamless Mode. In Seamless Mode the guest only gets half of the actual screen height (2048 x 723 px²) ...
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529 views

cannot access hard disk usb from virtualbox guest with winows 7 on ubuntu host

First of all sorry for my english :) I'm using VirtualBox 4.3.18 (downloaded from oracle's site) I'm running ubuntu 14.04 as host and windows 7 64bit as guest. When i plug the usb hard disk the host ...
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161 views

Virtualbox 3D acceleration doesn't work with Ubuntu 12.04

I'm running 64 bit Ubuntu 12.04 as Virtualbox guest, host is Windows 7 64 bit. Ubuntu works slowly if I disable 3D acceleration in Virtualbox and painfully slowly if I enable it. I have followed ...
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316 views

Ubuntu 14.04 - normal user requires sudo to access cdrom, webcam etc

I've just installed Ubuntu 14.04 Server and ROS (Robot Operating System) on top of it in Oracle VirtualBox 4.3.14. In addition to that I've also installed OpenCV so that I can combine it with ROS ...
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166 views

VirtualBox isn't enabling video acceleration

I'm using ubuntu 14.04 In virtual box I enable 2d and 3d acceleration as well as CPU acceleration. I did it after installation but I don't believe it would matter. I installed windows 7 and did the ...
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158 views

Ubuntu as VPN router

Here's my situation: Remote network (10.0.0.x) in another city, with a Cisco VPN router Windows server (local) that I want to have on the same subnet as remote network On the Windows server I've ...