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Questions tagged [virtualbox]

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.

VirtualBox (VB) is a free and open-source software that provides a virtual machine (VM) for a variety of guest operating systems. Detailed installation instructions can be found in the VirtualBox User Manual. VB, by default, saves its VM in the VirtualBox image (VBI, file extension: .vdi) file format. The software is currently owned by Oracle.

For USB and RDP support, a non-open source (licensed under PUEL) extension pack needs to be installed.

External links

Download sites for VBI

Help resources

Alternatives

  • VMware Player
  • VMware Workstation
  • Kernel-based Virtual Machine (KVM) see
  • Qemu (short for Quick Emulator) see

Notable questions

5562 questions
178
votes
7 answers

Why does a Ubuntu guest in VirtualBox run very, very slowly?

I'm using currently Ubuntu 12.04 LTS as a host machine, and I've virtualized three machines: a Xubuntu 12.04 guest a Windows 7 guest a Ubuntu 12.10 guest All the guests have the same VirtualBox default settings, but Ubuntu 12.10 is slower! The…
Giorgio
  • 2,171
154
votes
9 answers

Why has VirtualBox's menu disappeared?

How do I display the menu bar of VirtualBox? Functions like cdrom, usb, etc need access to the menu bars to work.
sam
  • 6,831
143
votes
4 answers

Cannot install Ubuntu in VirtualBox due to "this kernel requires an x86-64 CPU, but only detects an i686 CPU, unable to boot" error

I was trying to install Ubuntu 12.04 in VirtualBox 4.2.12r84980. I see this kernel requires an x86-64 CPU, but only detects an i686 CPU, unable to boot But I am using a 64 bit Windows 8, and trying same .iso for trying Ubuntu. Then what is the…
aluph
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140
votes
4 answers

No Host only adapter selected

I have a problem with my virtualbox on ubuntu 12.04, I can't add a host only adapter, the message is "no host only network adapter selected" I can't select anything can anyone solve this problem??
Ujang Karnadi
  • 1,503
106
votes
9 answers

Why can't I access a shared folder from within my Virtualbox machine?

I have Ubuntu 14.04 as my host system, and then on Virtualbox, I have Lubuntu 14.04. I am trying to share a folder on my host system so that my guest system can write files to it. I've followed instructions as best I can, installed the Virtualbox…
Questioner
  • 6,839
101
votes
13 answers

Is there a way to make a fullscreen on VirtualBox?

I tried many ways to make a bigger screen in VirtualBox because I do not like the small size of the guest window? Is there is a way to make it big?
tyblo
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100
votes
4 answers

How do you resize the standard Ubuntu Desktop inside of Virtualbox?

So I've installed Ubuntu inside of Virtualbox, and I resized the window of Virtualbox to be full-size, but the Ubuntu Desktop stays the same standard size. How do I make the width of Ubuntu stretch 100% across the Virtualbox window?
willbeeler
  • 1,919
99
votes
6 answers

What does "No bootable medium found" mean in VirtualBox?

I have recently been trying to install VirtualBox, when this message came up: No bootable medium found! Can somebody please tell me what went wrong?
CENTAUR
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99
votes
4 answers

In virtualbox fullscreen mode, can I disable or move the popup menu bar?

I'm running XP in virtualbox cause I need Photoshop and Illustrator. It works great on my 5 year old laptop which is stunning, but there's a minor annoyance when I go fullscreen. The menu bar is in the bottom middle, and it pops up over the content.…
joon
  • 1,709
90
votes
4 answers

How can I tell if the VirtualBox guest additions were installed on an Ubuntu VM?

How can I tell if the guest additions are installed on a VirtualBox VM with no X Windows installed? I'm having a problem mounting a shared directory and I'd like to rule out the possibility that the guest additions weren't installed.
Nathan Feger
  • 1,011
68
votes
2 answers

Resizing Virtual drive

I am running Ubuntu as a guest on an iMac with VirtualBox version 4.1.8. What is the easiest way to resize the virtual drive? Please provide as much detail as possible including the correct format for any commands.
james
  • 681
67
votes
2 answers

Send Ctrl+Alt+F1, Crtl+Alt+F7 into VirtualBox

I have a Virtual Box machine with Ubuntu. I need to send Ctrl+Alt+F1 to guest machine, but when I press them it is captured by host. How can I fix it ?
ceth
  • 913
57
votes
5 answers

How to start a VirtualBox machine via command line (without GUI)?

I know that this is possible, but I don't know how... I am just trying to start a VirtualBox VM called ubuservloc from the command line, but without success.
Victoralm
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54
votes
13 answers

Unable to mount the CD/DVD image on the machine Sandbox

I installed Ubuntu 12.10 Server AMD 64 with VirtualBox 4.2 latest version. I've installed it successfully. I've to install now Guest Additions but I am getting a error message like the below exactly same Unable to mount the CD/DVD…
Sumon Khan
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47
votes
4 answers

VirtualBox doesn't recognize USB

Possible Duplicate: Set up USB for Virtualbox I have Ubuntu 12.04 as host and Win7 as guest. I installed VirtualBox 4.1 and Extension Pack 4.1 from Oracle website. I also enabled USB 2.0 from Settings of my VM. My Win7 VM doesn't regconize USB…
emeraldhieu
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