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

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Build Ubuntu VM using mirror

In kvm, using virt-install I can create centos images using this parameter in my virt install command. -l http://mirror.umd.edu/centos/6/os/x86_64/ Starting install... Retrieving file .treeinfo... ...
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456 views

Unable to start libvirtd

When I try to start libvirtd using sudo libvirtd I get this error message: 2013-06-20 06:16:12.384+0000: 10470: info : libvirt version: 1.0.2 2013-06-20 06:16:12.384+0000: 10470: error : ...
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4k views

Virtual Machine Ubuntu 13.04 is Very Slow

I installed Ubuntu 13.04 in my VMWare (I'm using Windows 7); the problem is it's quite slow; it doesn't response quickly as opposed to native installed OS. I also installed CentOS & WinXP; they're ...
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2k views

Bridge networking is not working in virtual box 4.2.8 with ubuntu 12.04 host and ubuntu 11.10 guest

Very good article but there is a problem for me. I am using virtual box 4.2.8 with ubuntu 12.04 host and ubuntu 11.10 guest. I am unable to setup bridge networking beetween host and guest. here i am ...
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269 views

Managing windows virtual machines remotely

I have a very abstract and possibly naive question, nevertheless I am putting it up - I want to develop a Ubuntu lab in an institute, using a client server model. I want the individual clients to ...
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3k views

kvm error in syslog says cpu0 unhandled rdmsr

I have a server that hosts about 20 KVM guest machines. It's syslog is, at times, flooded with messages like these: 00:17:36 vhost-server kernel: [ 157.835078] kvm: 3138: cpu0 unhandled rdmsr: ...
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79 views

What facets should I consider when deciding which guest to jail in (“full”) KVM and which in LXC?

Currently I am migrating to a new server. The old one ran 10.04 as host system and a few more 10.04 and Debian 6 as KVM guests. This was alright, because the processor had support for virtualization. ...
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588 views

Debootstrap chroot Installation Error

During initial installation (using both Network installation and CD ISO) of Ubuntu Server 12.04.1 LTS (64-bit) as a guest VM on XenServer 6.1 I'm getting this error: Debootstrap warning Warning: ...
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18 views

virtualbox shared folder is read only in centos guest

I have virtualbox 4.3.10 installed on my ubuntu host & have centos as guest os. I have shared folder, but am not able to write to that folder. Added my centos root user to the vboxsf group as ...
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20 views

kvm does not exits in ubuntu 14.04

Hello I just started learning android development so for that I need Virtual Device to test apps on it . But when I start virtual device it says CPU acceleration status: KVM is not installed on this ...
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18 views

Start minimal Ubuntu for VM Ware

I'm running Ubuntu on an Asus Zenbook. Distributor ID: Ubuntu Description: Ubuntu 14.04.2 LTS Release: 14.04 Codename: trusty Now.. this not-so-ultra ultrabook has only 4GB memory and offers ...
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24 views

VM: Can not access to internet

I installed Ubuntu 14.04 LTS on VirtualBox 4.3.22 which is itself installed on Windows 7. I set the virtual machine network to NAT. Here is the content of my /etc/network/interfaces: auto lo iface ...
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26 views

Virtual machine won't boot without media. /dev/sr0: no medium found

Ubunto server 14.04, and I created a VM with the OS of win serv 12. But I can't start the VM without the ISO being in the cd-rom. this is my error: error starting domains: failed to open file ...
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17 views

Looking for Ubuntu VDI Desktop

I checked VDI Solutions Like VMware Horizon, Citrix Etc. all gives Windows VDI. Is there any solution I can load Ubuntu Desktop image from any thin Client
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10 views

Is it possible to use both libvirt and lxc userspace tools?

Libvirt is pretty easy to use and has the bonus of having cross compatibility with other hypervisors. I was curious, is it possible to create a container and manage it with both virsh and lxc-* ...
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8 views

rename vmware directory

By default vmware creates a file in my home directory called vmware and sticks the files related to my virtual machine in there. Can I rename that folder? How can I do so without breaking vmware? Any ...
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85 views

What are disadvantages of Dockers compared to Virtualization (VM)?

I am new to dockers and visualization so give details regarding this or point out the resources through which I can deduce the answer.
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46 views

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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14 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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66 views

AMD Graphics Driver version that works for R9 290 GPU Pass through

Dedicated GPU (AMD Radeon R9 290) passthrough setup to a VM running Ubuntu 14.04 x64 LTS. Hypervisor used is KVM. Tried installing the latest Graphics driver available on amd support site (14.501 ...
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207 views

SD Card not recognized in Ubuntu 14.04 guest, of VMware Workstation 11, on Windows 7 host

I wanted to install Ubuntu 14.04 on my laptop. So I installed VMware Workstation 11 on Windows 7 64-bit, and then installed Ubuntu 14.04 LTS as guest on it. It's working fine with removable USB ...
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14 views

Ubuntu server VM install has limited bash functionality

I installed Ubuntu Server 14.04 in a VM and I selected the VM option during installation since my host has limited memory. I accepted the fact that most features will be disabled in such a system for ...
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31 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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64 views

Permission denied while invoking libvirt with -no-kvm-irqchip argument

Trying to start a VM with -no-kvm-irqchip as argument. in the vm.xml, I have specified emulator as "/usr/bin/qemu-kvm-irq" which is passing -no-kvm-irqchip as argument. > ...
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44 views

Xen and Openstack on Ubuntu 14.04

Which software stack to choose for Xen if I want to install Openstack on top of it? How to install Openstack on top of Xen?
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74 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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103 views

Kernel panic while installing CentOS 7 in VirtualBox

I have a laptop with Xubuntu desktop 14.10 , and I installed VirtualBox and updated it to the latest version . I'm trying to install CentOS 7 (source downloaded from the official site) as a VM, ...
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54 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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23 views

Virtualization of Non-existing hardware?

I have to show a non-existing hardware present in the system by using virtualization. I am new to Linux, and trying to learn it because it is in my course work. I have assigned an assignment from my ...
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30 views

Virtual Machine Manager - Windows sharing internet with Ubuntu

Good morning, I have installed Virtual Machine Manager onto my Ubuntu setup and installed Windows. Now the whole install went get and installed without a problem... except that I have no internet. ...
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45 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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24 views

network on virtual machine not working

I Have an Ubuntu machine with VmWare installed. With it I have a CentOS virtual machine, and I am not able to connect to the internet from the virtual machine. The physical machine is using its wlan0 ...
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31 views

Make libvirt/qemu VNC take an interface name instead of a fixed IP address

I rely on VNC to communicate to my VMs from an external system, so in the XML description file I have something like this: <graphics type='vnc' port='-1' autoport='yes' listen='10.1.1.199' ...
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13 views

Rack number in Hadoop

I have hadoop cluster with 9 nodes. All belongs to /default racks. But I want the setup something similar to this. (All are in same subnets) Rack 0: DataNode1,Datanode2,DataNode3 and top of rack ...
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106 views

OpenStack Installation failing | error in creating bootstrap kvm

I am trying to install Open Stack using the guide located -> here! However when i am tying to install it I am receiving the following error: INFO • 11-15 14:28:59 [LINE:73, FUNC:status_context] • ...
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80 views

bridge interface br0 for virt-manager removing IP from em1

I am trying to create a bridge interface for virt-manager to boot PXE images from network. My actual network in em1 (I don't have an eth0 iface). em1 have 172.16.20.x IP. I prefer the bridge IP to be ...
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77 views

toc2mp3 - Converting toc-files to mp3 using cdrdao

I have created some toc-files in the past using cdrdao and I wanted to convert them to mp3. Unfortunately Ubuntu 14.04 LTS doesn't come with toc2mp3 so I tried to download the source and compile it ...
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150 views

Not able to start StartX on Ubuntu Server configured inside KVM

I have Ubuntu Server installed as guest OS inside KVM. I also installed Ubuntu Desktop on top of that but now when I am trying to start GUI using StartX, I am getting below message and my screen ...
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24 views

How to open existing process of virtual machine in VMWare?

I'm working a lot with VMware virtual machines on Ubuntu 14.04 and sometimes VMWare "forgot" for some virtual machine. It often appears when VMWare freezes up for a few second. same screenshot in ...
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49 views

My Ip address keeps changing each time I restart my virtual computer

I have a KVM configured running two VMs with almost exact characteristics, the main difference is the service they provide. The IP network is obtained via DHCP(I have configured a bridge in the KVM) ...
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87 views

Snapshot revert fails in my KVM setup

I am trying to revert a snapshot and I am getting the below error message in my KVM setup . Reverting to a snapshot is failing. #virsh snapshot-revert TestImg Deployed-Stage --force error: An error ...
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254 views

Control VirtualBox using libvirt on Ubuntu 14.04

I am running an Ubuntu 14.04 Desktop and have VirtualBox 4.3.18 installed on it. Also libvirt is installed, from the ubuntu repositories. The libvirtd deamon is running, as root. On another Ubuntu ...
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71 views

Is it still necessary to disable KVM modules when installing VirtualBox?

I'm about to install VirtualBox in headless mode, on an Ubuntu server running 14.04. In the past it's been necessary to disable or remove KVM and Qemu, as VirtualBox will not run if they're present. ...
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49 views

MaaS add Node (virsh)

I have problem with virsh. I'm using XEN as hypervisor. I have virtualized MaaS controller and want to add virtual Node. I was proceeding this Ubuntu http://maas.ubuntu.com/docs/nodes.html ...
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117 views

LIS 3.5 under Ubuntu 12.04 LTS

Unfortunately I needed to run an Ubuntu Server 12.04 LTS under a Hyper-V from MS. After install, I pass through big problems with network and i/o performance. The Hyper-V recommend to update the LIS ...
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160 views

How should I configure Ubuntu with VirtualBox on Windows 8.1?

I just built my first Windows computer. It's running Windows 8.1. Here are my computer specifications:- GPU: GeForce GTX 770 CPU: Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz Memory: 16GB RAM Current ...
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18 views

Wrong throughput measruements in VBox VM running Ubuntu 12.04.3

I have one physical machine with Linux Ubuntu System (Host OS) installed on it. Besides that, the machine runs one Virtual Machine (VM) and one Open vSwitch Bridge. The machine has one virtual ...
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63 views

Disadvantages of installing ubuntu trough qemu/kvm

Since I am testing iso's a lot and I want to do so on real hardware, but can't stand the install process and the associated waiting time (I only have one machine) I have written a script that installs ...
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102 views

How to fix VirtualBox resolution?

I use Ubuntu 14.04 in VirtualBox. I have installed Guest Additions and it's running good except for this really irritating problem in which my Unity and LightDM interface is at full resolution ...
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2k views

virtual machine manager kvm is not available - ubuntu 12.04

im a bit new to ubuntu i installed kvm using these commands: 1.sudo egrep '(vmx|svm)' --color=always /proc/cpuinfo output was produced like 4 times 2.sudo apt-get install kvm ubuntu-vm-builder ...