Ask Ubuntu
Ask Ubuntu

Questions tagged [virtualization]

Questions about Virtualizing Ubuntu or virtualizing other operating systems within Ubuntu.

A Virtual Machine is a machine that exist as a file. The file contains all the settings for the machine, including the operating system and ram usage. Then a Virtual Machine can be executed by using softwares like Virtualbox.

2201 questions
348
votes
14 answers

How do I check if a package is installed on my server?

I recently installed Ubuntu Server edition 13.10 (Saucy Salamander). But I have run into a bit of problem. At the end of the installation, it asks about several extra packages whether you want them or not, like OpenSSH server and virtual machine…
D.Zou
  • 3,791
151
votes
5 answers

Migrate from a virtual machine (VM) to a physical system

Aka: How can I convert a .vdi or .vmdk to a real installation on a physical disk? Is it possible/feasible to migrate a Virtual Machine installation of Ubuntu onto a physical machine? If possible, how difficult would this be to accomplish and what…
dting
  • 2,275
137
votes
10 answers

How to set up USB for Virtualbox?

I'm using Ubuntu Maverick and Virtual Box 3+. I have Windows 7 Ultimate. The problem is that it doesn't detect USB drives in Windows 7, but USB peripherals (mouse + keybord) are working. I followed these instructions, but I can't find the user group…
kst
  • 1,493
124
votes
21 answers

virt-manager can't connect to libvirt

I'm running Ubuntu 12.04.2 32 bits. The error doesn't show up if I start gksudo virt-manager. libvirt-bin is installed. I don't know how to check for the daemon. I am a member of libvirtd. Output of ps ax | grep libvirt: 9225 ? Sl 0:04…
That Brazilian Guy
  • 4,490
108
votes
12 answers

How do I unmaximize full screen view in virt-manager?

After activating full screen view for a virtual machine in virt-manager there is no obvious way to un-full screen. Any ideas?
Anders Wallenquist
  • 1,602
104
votes
7 answers

In VirtualBox, how do I set up host-only virtual machines that can access the Internet?

In setting up virtual machines with VirtualBox, I often want the following characteristics VM has a static IP host can access VM without port forwarding VM can access the internet I can move my laptop from network to network (e.g. from home to…
Christian Long
  • 3,217
  • 4
  • 20
  • 16
85
votes
6 answers

What is the virbr0 interface used for?

virbr0 Link encap:Ethernet HWaddr a2:17:ea:e3:47:7e inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 …
user125242
  • 869
80
votes
3 answers

How to export and import VirtualBox VM images?

In VirtualBox you can create VM and it will store it on a folder inside the Default Machine Folder of VirtualBox. For instance, after create an ubuntu-headless VM it will create an ubuntu-headless directory with a couple of files and more folders…
Lucio
  • 19,191
  • 32
  • 112
  • 191
80
votes
12 answers

Apache fails to start, Address already in use (but not really)

I'm trying to set up a VM running Ubuntu 12.04. I have two virtual hosts configured using port 80, but Apache will not start. I get this error: (98) Address already in use: make_sock: could not bind to address 0.0.0.0:80 The output of…
Gunner Barnes
  • 959
  • 1
  • 6
  • 9
74
votes
10 answers

VirtualBox '/etc/init.d/vboxdrv setup' issue

I have installed VirtualBox through the software centre, but when I try to start a VM, I get the following error: Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission…
Dr_Bunsen
  • 4,783
73
votes
16 answers

How to install Internet Explorer (multiple versions)?

I am developing one site which has chat feature in Rails. I am using Ubuntu 12.04 LTS. I need to check that the site is IE9 because the chat feature using socket io of HTML5. I want to know that how to install IE9 in Ubuntu. I have looked at Chrome…
Anand Soni
  • 853
72
votes
2 answers

How do I enable hardware virtualization technology (VT-x) for use in Virtualbox?

So I am trying to run Ubuntu in a virtualbox but on installing 12.10 from the .iso I was greeted by a warning telling me that audio wouldn't work then I pressed next and this popped up: Failed to open a session for the virtual machine Tux 3 VT-x…
user132520
  • 831
64
votes
4 answers

How do I install qemu?

How do I install the qemu command? I type qemu and press tab and I get a list of several binaries installed. qemu-alpha qemu-arm ... qemu-x86_64 but no qemu. I type man qemu and it returns the docs as if the command is already installed. I type…
William
  • 936
59
votes
5 answers

Is there a free trusted virtual machine image with Ubuntu preinstalled?

Since the vmware virtual machine drivers are pretty standard I don't see any technical reason for a preinstalled image not to be portable. Although the above situation is obvious, I didn't find any preinstalled vmware image for Ubuntu. Is there a…
Eduard Florinescu
  • 8,587
57
votes
4 answers

"intel_rapl: no valid rapl domains" message upon boot

I install fresh Ubuntu 14. 04 server under ESXI 5.1.0. During my installation I did not get any erorrs or strange things. My problem is when I boot machine at console screen I get messages like [ 6.958104] intel_rapl: no valid rapl domains found…
adopilot
  • 673
1
2 3
…
99 100