An x86 virtualization software package developed by Oracle (which bought Sun, which bought Innotek).

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132
votes
16answers
39k views

Any reason NOT to run Linux in a VM all the time?

I've switched to using Arch Linux for most of my day to day work and don't need Windows for anything but gaming and the couple of apps that aren't ported to Linux like OneNote. My Linux distro is ...
33
votes
9answers
58k views

How to automatically start and shut down VirtualBox machines?

I need to run a software system that is intended to be installed as an appliance on a dedicated machine. In order to save energy, I plan to run the system on a VirtualBox VM instead. The host is a ...
19
votes
4answers
35k views

File permission issues with shared folders under Virtual Box (Ubuntu Guest, Windows Host)

I am using Ubuntu on Virtual Box and I have a folder which is shared between the host (Windows) and the VM (Ubuntu). When I open any file in the share folder in Ubuntu, I can not change it as its ...
15
votes
1answer
2k views

how to send CTRL-ALT-Fn to virtual box guest Linux?

This should be a simple question: Host OS: Arch Linux Guest OS: Arch Linux (GNOME) How can I send Ctrl+Alt+F1 to my Guest Linux OS?
14
votes
3answers
23k views

How To Install Virtualbox Guest Additions On CentOS via Command Line only

Reading the Virtualbox user manual, I finally got [here], which explains how to install Virtualbox Guest Additions on a Linux guest via Command Line. But it's not clear enough for me (I just started ...
12
votes
3answers
12k views

CentOS no network interface after installation in VirtualBox

I have Ubuntu 12.10 on which i installed virtual box on which I setup centos 6.4 i386. On Ubuntu I have: 3.5.0-17-generic kernal running. On virtual box I install centos 6.4 and everything works ...
11
votes
4answers
3k views

Good distro for a VM?

I want a lightweight Linux VM that I can run with VirtualBox on Windows so I can test how to deploy PHP apps, Mono apps, etc. I don't need the UI and was thinking of going with the Ubuntu server ISO. ...
11
votes
3answers
20k views

VirtualBox: two network interfaces (NAT and host-only ones) in a Debian guest on Ubuntu

I created a Debian VM on VirtualBox with two interfaces: a NAT one (for accessing internet) and a host-only one. However, I do not know how to make both interfaces work at the same time. If I the ...
10
votes
4answers
5k views

Convert image of a partition into image of a disk with partition table

I have an image of an existing partition generated with dd if=/dev/sdXN of=image.bin. Now I want to use this image as the basis for a virtual machine. I know how to convert the image into a format ...
10
votes
1answer
4k views

Using a LVM partition as a Virtualbox drive

Is it possible to use a LVM partition as a Virtualbox disk? I can't find any option to use a device as a Virtualbox disk, only disk images.
10
votes
3answers
2k views

What's causing VirtualBox OSE to hang my machine?

I'm using VirtualBox OSE and recently, when I run Ubuntu 10.10 on it, my machine tends to hang, forcing me to hard-reset it (not good). How do I start finding where the problem is? Here's the last ...
9
votes
3answers
12k views

How to make ext4 filesystem sparse?

I am using Linux as guest OS in VirtualBox. I deleted huge number of files from its filesystem. Now i want to shrink the filesystem image file (vdi). The shrinking works by compressing filesystem ...
9
votes
3answers
16k views

Why are my two virtual machines getting the same IP address?

I have two virtual machines both running on a Linux host (Fedora 16). I set both adapters as attached to NAT. When I boot them up they both have their default gateway set to 10.0.2.2. They also ...
9
votes
4answers
19k views

Enabling IOMMU in the kernel for graphics card pass-through

Short question: How can I turn on the intel_iommu setting in the Linux kernel? I run a Debian host, using the grub2 bootloader. Documentation I've seen says to edit /boot/grub/menu.lst, which seems ...
8
votes
2answers
9k views

Uninstalling default VBoxGuestAdditions on Debian

When I ran sh /media/cdrom/VBoxLinuxAdditions.run I got the following warning message: You appear to have a version of the VBoxGuestAdditions software on your system which was installed from a ...
7
votes
1answer
2k views

Wine vs Virtualbox?

I have used Wine before. I recently heard of VirtualBox. Do they do the same thing? What are the differences and relative merits of these?
7
votes
1answer
10k views

How to convert VMDK to VDI/VHD

It's said that VirtualBox's VBoxManage modifyhd --resize command can only be used on either VDI or VHD files. Sadly, I have a VirtualBox image that is in VMDK format, and I don't know how to convert ...
7
votes
1answer
3k views

Why is VirtualBox Bridged networking slow

When logged into the guest, data transfer (scp) from the host is very slow (<1MB/s). Is this expected? setup: VirtualBox host is Debian Unstable VirtualBox guest is Debian 6 (Squeeze) Bridged ...
7
votes
5answers
5k views

Linux Mint 15 unable to install on VM VirtualBox

Appears that something maybe up with my VM set-up as it wouldn't install Fedora either. Problem will be I load up the VM and hit F12 to boot from the CD/DVD which is pointed to the mounted ISO file ...
7
votes
1answer
593 views

How to re-size virtual disk with installed Linux system?

I've got hard system configuration there and I don't want to re-install it again but I need more space now. Current system space is 30GB. Seems like it's not possible to re-size disk so what I need ...
7
votes
5answers
4k views

Gedit won't save a file on a VirtualBox share: Text file busy

I have a text file that I can change using other applications (for example openoffice). But when I try to change and save it using gedit, I am getting error from gedit: Could not save the file ...
7
votes
2answers
25k views

Increasing Screen Size/Resolution on a VirtualBox Instance of Centos

I have VirtualBox instance of Centos 5. The screen size is quite small (800*600) and I'd like to increase it to 1280*1080. Under the Gnome preferences for "Screen Resolution" I only get the option for ...
7
votes
1answer
1k views

Virtual box machine, Created in windows run on linux?

Can a virtual box machine that was created in Virtual Box for windows run on Virtual box for linux? And if so do I just need to transfer the hdd files?
6
votes
2answers
19k views

How to run a fresh version of AIX in a Virtual Machine with a Linux host?

I need to learn about AIX, and I only have a laptop with Fedora 14/VirtualBox on it. Is there any chance that I could run an AIX guest in my VirtualBox? My laptop has an Intel(R) Core(TM)2 Duo CPU ...
6
votes
1answer
3k views

How to make a distro be fullscreen on VirtualBox?

I'm running Debian as host and I fail to get Debian, Ubuntu, and Fedora guests to be fullscreen. Changing video memory didn't help. NOTES: I haven't tried any other distro I didn't create WinXP ...
6
votes
3answers
4k views

How to resize a VirtualBox HDD image

I initially created a dynamically expanding VirtualBox image, and have tried to increase its hard drive space: VBoxManage modifyhd "VirtualBox VMs/JHBuild/JHBuild.vdi" --resize 16384 After that, I ...
6
votes
2answers
814 views

How to force release of a keyboard modifiers

Sometimes, when I use synergy between my machines when one is using full-screen VirtualBox guest I get stuck with some weird key modifiers turned on. If they exist on my keyboard (like Shift_L) I can ...
6
votes
4answers
9k views

Booting the already installed Windows from the VirtualBox installed in Ubuntu

I want to boot the Windows which is installed in laptop's internal harddisk(/dev/sda1) from the VirtualBox installed in my Ubuntu. Can somebody tell me how to do this in VirtualBox.
6
votes
1answer
3k views

NAT (Internet connection sharing) switching between multiple public interfaces

My Ubuntu 12.04 (precise) laptop has three network interfaces: eth0: wired interface sometimes connected to the Internet wlan0: wireless interface sometimes connected to the Internet vboxnet0: wired ...
6
votes
1answer
758 views

Debian Wheezy, VirtualBox, HP DV6-7099EL problem with AltGr

I just bought a HP DV6-7099EL laptop (Italian keyboard). I'm going to install Debian in a week or two, I just want to test the computer without touching the partitions (just in case I need ...
6
votes
1answer
394 views

Self contained VirtualBox VM

I would like to create VirtualBox VMs which are entirely contained in a single directory (including various aspects that are normally kept in a configuration in the ~/ directory). The idea is to ...
6
votes
2answers
1k views

Use cgroup to limit the memory usage of virtualbox

I am trying to use cgroup (Control Group) to limit the memory usage of virtualbox, but it does not seem to work. My machine is: $ uname -a Linux fc.bgi 2.6.40-4.fc15.i686 #1 SMP Fri Jul 29 18:54:39 ...
5
votes
5answers
19k views

How to transfer files from Windows to Ubuntu on Virtualbox?

How should I transfer files from Windows to Ubuntu installed on Virtualbox? When I plugged in a USB, it only pops up in Windows. How can I see it in Ubuntu?
5
votes
3answers
10k views

“mount: / is busy” when trying to mount as read-only so that I can run zerofree

I am trying to run zerofree on Ubuntu 11.04 so that I can compact the VirtualBox vdi image using: VBoxManage modifyhd Ubuntu.vdi --compact In order to run zerofree the disk image has be mounted as ...
5
votes
2answers
499 views

Do I need acpid in a virtual machine?

I'm always wondering if power management facilities in a virtual machine is necessary? i.e acpid. And I'm not sure if they still function in a virtual machine.
5
votes
1answer
4k views

What are some alternatives to virtualbox

I have a lot of trouble lately installing on a box that i can't reboot or change the kernel. Is there any other package that supports gre tunnels (if the os supports ) that i can run on linux? ...
5
votes
1answer
157 views

How to install an old version of OpenBSD inside VirtualBox?

I'm reading an old Phrack article and I would like to install OpenBSD 3.0 inside VirtualBox. I remember installing this very version using actual physical floppy disks in 2001, but nowadays I don't ...
5
votes
1answer
2k views

Linux Mint won't run virtualbox

I installed Linux Mint 11 Katya with Virtualbox 4.1 once and all was running fine. Then I reinstalled system, and I have a lot of software installed too (including Wine). But when I went through the ...
5
votes
3answers
3k views

Migrating a Virtualbox virtual machine into a physical dual-boot system

I'm running a Linux Mint 12 virtual machine in Virtualbox. I would like to move it into a dual-boot setup with my Windows 7 installation. I have lot of settings in there, and apps installed, and my ...
5
votes
1answer
7k views

AltGr keys don't work with Ubuntu in VirtualBox

I just installed VirtualBox (from Oracle) in Windows 7, and created a virtual machine with latest Ubuntu. Here in Firefox I can use the left Ctrl key, while the right one doesn't have any effect. ...
5
votes
2answers
10k views

Oracle Linux 6.1 guest on Virtualbox 4.1 can't connect to network

I just installed VirtualBox 4.1 on my Windows system, and then added a Solaris 11 Express guest and an Oracle Linux 6.1 guest. Both installs went smoothly. But while the Solaris 11 guest has network ...
5
votes
2answers
94 views

How to set up interchangeable VM guest/hosts

I'm looking for a way to set up a computer so that the disk is partitioned for multi-booting to two operating systems: Linux and Windows. Whichever one is booted, I want the other to be accessible as ...
5
votes
1answer
1k views

How to force Debian to wait for DHCP

I am running Debian squeeze in a virtual machine (VirtualBox). The machine has two interfaces: eth0 in "Host-only" mode so that the machine is accessible from the outside; and eth1 in "NAT" mode so ...
5
votes
2answers
3k views

VirtualBox guest: 16 CPUs detected but only 1 online

I am running VirtualBox (using the Qiime image http://qiime.org/install/virtual_box.html) The physical hardware is a 32 core machine. The virtual machine in VirtualBox has been given 16 cores. When ...
5
votes
3answers
615 views

Gedit cannot save in shared folder (Virtualbox)

I'm getting the "Cannot save _ Unexpected error: Error renaming temporary file: Text file busy" in Gedit 2 when I try to save in a shared folder with Virtualbox (Debian). I've searched and apparently ...
4
votes
2answers
764 views

How can one switch to ttyX in virtualbox?

I run VirtualBox in Linux , running CentOS in it , and I can't switch to ttyX in the CentOS since I'll go to the ttyX in my Linux. Any solutions ?
4
votes
2answers
609 views

disabling ssh session expiration

I am installed Ubuntu on Virtual Box, and use xshell (a remote terminal application) to ssh to ubuntu. when I hibernate computer during night, after powering it on, the session is expired and I should ...
4
votes
1answer
2k views

Open VirtualBox GUI?

I've installed VirtualBox and I would like to create a VM now. I prefer to use the GUI rather than the command line interface, and I know that VirtualBox comes with such a GUI. However, I can't seem ...
4
votes
3answers
5k views

Sharing folder from Windows Host to Freebsd Guest

First of all, let me say that though I use Linux (Red Hat, at work) regularly, I am a complete beginner when it comes to actually administrating it. What I am trying to accomplish: I have (at home) ...
4
votes
1answer
585 views

What are the cons of using VirtualBox guest additions?

There's a number of advantages to installing Guest Additions in VirtualBox guests: one can copy-paste between host and guest one can run guest as fullscreen There must a whole lot more, so that ...