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

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Performance of KVM on 32 Bit Ubuntu compared to 64 Bit?

Due to hardware failure, I recently grabbed a harddisk out of an old 32 bit machine and plugged it into a new 64 bit system - powered on, everything good, services outage minimised. Now I am planning ...
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2answers
68 views

I want to using multiple VMs and multiple NICs

I have a windows machine with virtualbox running and 3 NICs [eth0/eth1/eth2]. Eth0 is connected to ISP. Other 2 are connected to each other through a switch. [yes, it is a switch, yes I need it there] ...
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0answers
83 views

How to access the a qemu virtual machine?

I'm following the tutorial at: https://coreos.com/docs/running-coreos/platforms/qemu/ And I tried to add my ~/.ssh/id_rsa.pub to it so I could access it, using this command: ...
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1answer
761 views

How to install Ubuntu Trusty 14.04 in a qemu virtual machine

I'm running Debian Jessie amd64 with qemu version 1:2.1+dfsg-11 and want to install Ubuntu 14.04 for amd64 in a qemu virtual machine. But the installation process doesn't start because of a kernel ...
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3answers
24k views

Is there an open source alternative to Vmware vSphere Server? Like a Ubuntu or similar Distro with virtualization hosting built in?

I am looking at turning my old Dell 2650 and 2950 servers into Vmware vSphere Servers, however vSphere is very very expensive. Is there an open source alternative that provides the same performance ...
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0answers
177 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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2answers
37 views

remote booting into guest os

I have installed kvm. and i installed Ubuntu as guest OS in kvm. Now I want to centralize the system. where my users will log in to to their guest account remotely. if yes how to do this?
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0answers
22 views

how to use the Container technology on Ubuntu?

Is there a way to deploy a distribution other than Ubuntu, as content on Ubuntu? Say in my case i'm planning a Redhat as a content on my Ubuntu 14.04 . If yes. How to do it?
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1answer
128 views

How should I give access to a PHP script on a local host-only server?

I have a 14.02 LTS client and server VM connected using host-only and DHCP. Connectivity between them has been achieved and I can ping each machine from the other. I have LAMP installed and I'm ...
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1answer
277 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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0answers
113 views

Boot Ubuntu From VHD

I want to be able to use Ubuntu in a virtual machine from a VHD, and sometimes I want to boot on that VHD. It's easier for me to code in a virtual machine and boot on a VHD when I need full power for ...
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1answer
2k views

xen hypervisor wont boot from grub and “Can't find hypervisor information in sysfs!” error ubuntu 14.04

I have used This forum, trying to run xen on my os: steps i have done : egrep '(vmx|svm)' /proc/cpuinfo ouput = 4 and also i have run KVM virtualization with no problem. then: sudo apt-get ...
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0answers
27 views

copy an entire vm to dvd/cd disc?

I am writing a series of scripts on ubuntu for process control. I have needed to install several packages such as gawk and stress. I am doing this for a university project and will need to submit it ...
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0answers
68 views

Is it normal that network-manager manages virbr0? [closed]

I recently upgraded to vivid (I know it's still WIP), and have found that network-manager shows an interface virbr0 as Connected. virbr0 is an interface added by libvirt to handle networking ...
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0answers
54 views

MacBook Pro (virtual machine) low resolution

I have installed Ubuntu 14.10 in a virtual machine (i am using Parallels Desktop 9) on my MacBook Pro. Before I install Ubuntu (like I am trying it from CD...) the resolution is normal (1920x1200), ...
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1answer
261 views

Xen vm stuck at grub prompt

How can I get my Ubuntu server booting again? Is there a tool that would auto-fix this situation? No matter how many ways I run the "boot fixer" using a virtual image of ...
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0answers
23 views

Logical Volume Size Change During KVM Install

I am installing Ubuntu Desktop on a Server host using virt-install. Soon after the install starts the LV that I am writing the virtual disk image to goes from 50G to 64Z. Impossible since the machine ...
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1answer
70 views

Visualizing linux GPT partition (EFI) from Windows Host

I created a rescue grub.iso using the following script. This code worked for me when I using Windows 7, Ubuntu 12, MBR: #!/bin/sh set -e wk_dir=$(mktemp -d "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX") mkdir -p ...
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1answer
86 views

KVM VPS and data safety

I'm looking into setting up a mail server (running Ubuntu, ofcourse), but I need it to run reliably (in case it's good enough to start using it instead of only Gmail) so I found a VPS provider that ...
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2answers
51 views

Making my server virtual - what happens to my LVMs?

I have a physical server with about 10TB in two different LVMs and VGs. I'm going to be installing a bare-metal hypervisor on the hardware now, which means I'll have to rebuild my Ubuntu server. I set ...
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1answer
212 views

What is uvtool second virtual disk for? (and how does it prevent vm snapshots…)

I am toying with uvtool to quickly create virtual machines. I once used vmbuilder, but its seems to be deprecated in favor of uvtool (or not ?). When created with uvt, my vm has two virtual disks ...
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0answers
57 views

Clearsign File Invalid

I have (2) Xubuntu 14.10 x64 VMs running in VMware Workstation 11/VMware Player. I have VMware Workstation 11 installed on a Windows 7 x64 machine (which hosts one of the VMs) and also installed on a ...
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0answers
49 views

KVM is one app native do ubuntu for virtualization?

What is KVM ? a native application for ubuntu virtualization can be considered ? Ubuntu supports the paravirtualization ? to support paravirtualization , the procedure to do is the same virtualization ...
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39 views

Crash when creating new VM with VirtualBox but no obvious change in CPU, Memory or I/O usage in System Monitor

When creating a new fixed size VM in VirtualBox even though my memory usage, my CPU usage and my I/O usage in "System Monitor" stay at their normal levels, my entire machine crashes until the VM has ...
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1answer
36 views

how to enhance the screen of my vm?

How can I enhance the size of my virtual machine ? I installed ubuntu 14.04 desktop edition (lts) on virtualbox but the screen looks to small. When I do CTRL+C the screen becomes bigger but it does ...
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0answers
26 views

Cursor is Frozen When Reinstalling Ubuntu VM

I'm in the process of reinstalling Ubuntu on a VM on VirtualBox(this one is Ubuntu2; I didn't delete the files from the previous VM called Ubuntu) and when I get to the setup page that says Try ...
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1answer
296 views

How to configure networking for KVM

Ok, my situation is as follows. I have: -host (Ubuntu server 14.04) on which I want to have multiple VMs (KVM). This host has 2 NICs (eth0, eth1) -home router (dhcp, network 192.168.1.0) -PC with ...
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1answer
336 views

virtualization, guest Network settings error

I have the following situation, I have a virtualization environment, the host is Ubuntu Host information: uname -a Linux asic 2.6.32-38-generic #83-Ubuntu SMP Wed Jan 4 11:12:07 UTC 2012 x86_64 ...
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1answer
293 views

KVM guest performance impacted by very long virtblk disk wait times

I have several KVM guests running on Ubuntu 14.04 using libvirt. Their performance is very poor. The intermittent nature of the poor performance with an order of magnitude variability in simple ...
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0answers
17 views

Virtualization hardware review

I'm running an home server based on Ubuntu 14.10 for running some services that I need on my LAN such as: mysql db, LAMP stack, NFS share, Squid proxy and so. My machine is built on Intel(R) ...
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0answers
41 views

How to invoke a X Session and a VM instead of login prompt

The system is Ubuntu 12.04 but the OEM requirement is to make it appear as if it is a Windows system to the end user. Other VMs and daemons will be active in the system but it is controlled from ...
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0answers
105 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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1answer
85 views

VirtualBox refuses to start VM

I have created a VM in VirtualBox, but have not yet bean able to install an OS on it, because every time that I click the Start button in the VirtualBox interface I get these errors: I have tried ...
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0answers
54 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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1answer
46 views

running linux on virtual machines for experimentation [closed]

I usually use virtualbox to run linux as guest on my windows. I now want to run linux as guest on a linux machine. I'm using virtualization for experimentation on networks. I was told that virtualbox ...
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0answers
662 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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0answers
76 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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0answers
34 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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1answer
7k views

Install KVM on Ubuntu 13.10 server

How do I install/enable KVM on Ubuntu 13.10 server? I executed the following steps egrep -c ‘(svm|vmx)’ /proc/cpuinfo sudo apt-get install qemu-kvm libvirt-bin bridge-utils virt-manager sudo adduser ...
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0answers
300 views

Raspberry Pi / ARM Emulation [closed]

I'd like to be able to boot an image of Raspbian Wheezy, for example. I've seen people using QEMU but they have to download Linux source and compile it or accept a pre-compiled one from an untrusted ...
0
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1answer
129 views

Updating Ubuntu Virtual Machine using putty

I have access to a virtual machine running a clean install of Ubuntu 10.04.4 LTS. However, I need to use Ubuntu 14.04, and the server administrator is fine with me updating it. My only access to the ...
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0answers
32 views

Why can't I copy/paste or drag/drop into my virtual machine? [duplicate]

I'm working on a project, and I'm using Ubuntu Studio 14.10 inside Virtual Box (4.3.22; which is the latest version AFAIK). I'd like to copy some files from my host (Windows 8.1) to the virtual ...
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0answers
61 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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3answers
2k views

How can I run Ubuntu inside a virtual machine on Windows 7?

When I tried to run Ubuntu in Windows Virtual PC I got this error: This kernel requires an x86-64 CPU, but only detected an i686 CPU. Unable to boot – please use a kernel appropriate for your ...
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2answers
80 views

Partition my disk for instaling Windows as a guest OS?

I never use virtual machine before. I plan to partition my hard drive (250GB) on a Thinkpad T400 laptop (8GB main memory, and install Ubuntu 14.04 as my main and host OS. In the future, when I have ...
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3answers
3k views

Issue with Virt-manager

I installed virt-manager and I am unable to make it work. I have tried some of the previously posted answers with no success. I've verified that: The libvirt-bin package is installed The libvirtd ...
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0answers
142 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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1answer
405 views

How do I create a kvm guest running ubuntu server with a >2TB harddrive?

I have an Ubuntu server running as a kvm host. The host has three 1.5TB disks and the host uses lvm and has a 4TB volume group, on which I've created a 3 TB logical volume called nfsserver.I want to ...
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1answer
97 views

Really annoying big font in VMWare Fusion 7

I don't know where I was supposed to ask this question. I'm running an Ubuntu 14.04 VM on VMWare Fusion 7 and MAC OS 10.10.2. And I don't know why but it doesn't look good: For example on google ...
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1answer
108 views

Can not install Ubuntu virutal machines on VirtualBox and VMware Player

I have tried several times in several days to install Ubuntu (from 12.04 to 14.04 versions) on VirtualBox, but in vail. The problem I encounter is shown on the following picture where everything ...