Virtualization is the process of using software to emulate an entire computer, in which "guest" operating systems can run.

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USB 2.0 not working when VT-x is enabled

The problem I have is that when I enable Intel Virtualization Technology (or VT-x) in my bios, it makes my USB 2.0 ports not-working. The USB 3 ports, on the other hand, are working. This is ...
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23 views

Relationship between OpenStack and Xen

Xen is an open source virtualization platform that allows you to install a bare metal hypervisor on a machine, which turns it into a host for other guest VMs. I can't really understand what ...
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Xen Virtualization Types by Example

Please note: I first tried searching for an SE site where virtualization-centric questions were directly on topic. I found Virtualization, Cloud and Grid Computing, but to my surprise and dismay, see ...
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21 views

Is it possible to run 2 OS at the same time with full DirectX/OpenGL Support?

To clarify, i'm not looking for a virtualization program that restricts the hardware and software such as DirectX, i want to run 2 OS sharing the same hardware while not being restricted by any ...
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1answer
12 views

Virtualisation possibilities with MSI ge40 (intel 4702MQ)

I have this laptop. I want to run Linux Mint, and run Windows 8.1 in a VM. The thing is, that i would like to play some games on Windows. That will not work properly in Wine, i've tested it. So i've ...
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1answer
19 views

Configuring ESXi server to produce same performance results

I have an ESXi 5.5.0 server with a single VM. When I run some benchmark on the VM there are 6% differences between times of different runs on the VM (each run around 250 seconds). When I've run such ...
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9 views

How to “sandbox boot” an operating system in a Hypervisor without a full blown host OS?

I was wondering how I could setup a Hypervisor environment that boots an operating system in in a sandboxed¹ mode, without relying on a (full blown) host (Dom0) operating system. The target ...
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24 views

HyperV - each instance with a specific video card

In short, I'm wondering if this is possible: (*) have a blazing PC with unlimited ram, the fastest available processors, (*) which has (let's say) FOUR x 980 video cards on it (*) in a Windows8.1 ...
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17 views

Emulate 512-byte sectors with Xen

Anyone know how to make Xen 6.2 emulate 512-byte sectors when exposing a drive to a virtual guest? This would allow exposing native 4kB sector drives to older virtual guests like Windows 2003/2008 ...
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36 views

Upgrading from Ubuntu Server 12.04 to 14.04 caused KVM to no longer be supported

I finally got around to upgrading (do-release-upgrade) from Ubuntu 12.04 to 14.04 on my host machine (I have a handful of virtual machine already upgraded to 14.04), but now my host machine is ...
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7 views

Moving a VM from VirtualBox to MS Virtual Server R2

Is this possible straightforward? Do i need to convert the images before moving to Virtual Server?
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38 views

Getting a 4TB USB drive (4k native sector size) to work with Xen and Windows 2008 guest

I am trying to get a new 4TB Seagate USB drive to work with Xen 6.2 and a Windows 2008 R2 virtual guest. The Xen host sees the drive fine, fdisk -l lists it with the correct capacity, etc. I can ...
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11 views

What is better with virtual machines than with containers?

I've been reading up on Docker recently, and I see that there are plenty of reasons to use containerization instead of virtual machines. But what is not talked about as much (since containerization is ...
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33 views

Attempting to passthru USB disk to XENserver windows guest, reporting wrong size and error

I am attempting to passthru a brand new Seagate USB disk (4TB) to a Windows 2008 virtual guest in XEN 6.2. I connected the device, it is listed properly by fdisk -l (even lists correct size, but says ...
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10answers
3k views

Can a single OS installation on a SSD be shared between a desktop & a laptop?

Recently purchased a SSD and was wondering if there was an Operating System that allowed you to swap between 2 different machines (multiple hardware profiles? in this case my laptop / desktop) ...
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15 views

How to know if Xen hypervisor is running in ring -1?

I compiled and installed a Xen hypervisor v3.5 in my desktop (x86-64, CPU AMD Athlon(tm) II X4 640). How do I know if Xen has leveraged the AMD-V features of the the processor? More specifically, is ...
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40 views

No virtualization option in bios options in hp envy 700 215 xt core i7 processor

I ran this CoreInfo tool from Sysinterals: http://technet.microsoft.com/en-us/sysinternals/cc835722 and it says HYPERVISOR - Hypervisor is present VMX * Supports ...
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16 views

virtual machine go back to snapshot while running

I have this usual scenario when I want to go back to blank system (without changes): I stop virtual machine, then delete snapshots and then start virtual machine again. BUT: Is there any way how to ...
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35 views

Performance degradation of VM vs real machine

I know there is quite a bit of info about this topic around the web but after spending several hours reading other posts and articles I still don't have a solid understanding. Here is my setup: Quad ...
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0answers
98 views

RT2800 USB: monitor mode using Virtual Box

Information I am using a WiFi USB Adapter and the latest version of Kali running under VirtualBox. Chipset: Ralink RT2870/3070 Driver: rt2800usb Manufacturer: TP-Link FCC ID: TE7WN727NV3 It is ...
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2answers
35 views

Can I use the same Virtual Machine in two virtualizers?

Is it possible to use the same virtual machine in VirtualBox and also in VMware without losing any data? I don't need to use them "at the same time" but rather have the choice to lauch the virtual ...
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31 views

Virtualization for security reasons [closed]

I am going to build a home server and I am planning it's software setup. I would like to expose one or two services to the outer world. Namely, OwnCloud, in order to have remote access to my files. ...
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45 views

Windows 10 Technical Preview HP Virtualization Technology : Not Booting Up

For running Windows Phone emulator of Visual Studio, it requires to enable the virtualization technology in BIOS settings. I am using Windows 10 Technical Preview in HP 15-r022tx machine. When I ...
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1answer
94 views

Enabling Intel VT-x virtualization with a Dell Bios

Edit: My previous questions was wrongly written so I'm going to explain myself better. I've been trying to install Intel's HAXM in my PC(Dell Optiplex 3020, Intel Core i5 4050). I haven't been able ...
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2answers
63 views

Transfer VM without shutting it down?

Is it possible to transfer a VirtualBox VM from one server to another without shutting it down? Is there any way to achive this? Does this technology have a name to identify it? As far as I know Xen ...
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34 views

Cannot disable Hyper-V in Windows 8.1, listed as missing [duplicate]

I'm trying to run AndyOS. Its an Android emulator to run Android apps and games on my PC. My system meets the hardware specifications and since I have prior experience in running virtual machines, I ...
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60 views

Blinking white transparent screen in VMware workstation 11

Whenever I play games in my VMware workstation 11 virtual machine, I get white transparent blinking screen, the blinking screen is covering entire virtual machine screen, and it goes in intervals of 5 ...
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0answers
63 views

Unable to change IPv4 properties for a VirtualBox Host-Only Adapter

Keeps coming up with: In order to configure TCP/IP, you must install and enable a network adapter card. Using Vagrant and ScotchBox if that helps but also tried with a basic Vagrant box and same ...
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21 views

esxi VM resource allocation for multiple users with varying requirements

I have an esxi host which several users will use as a development machine. Let's say that I have a host with 32 cores and 32 GB of RAM and 4-5 developers that will work on Ubuntu machines. The number ...
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1answer
67 views

What are the differences between the linux-virtual, linux-image-virtual, and linux-image-extra-virtual kernels in ubuntu? [closed]

I'm wondering what the differences are between these kernels? linux-virtual linux-image-extra-virtual linux-image-virtual
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95 views

Vagrant up error: E_FAIL (0x80004005) with Laravel Homestead

I've recently did an update to my vagrant box as well as a composer update for laravel homestead and now I'm granted with an error when I use homestead up. Bringing machine 'default' up with ...
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30 views

Cannot create a virtual machine on Fedora: Activation of org.freedesktop.machine1 timed out

I am trying to create a new VM within Fedora using virt-manager. However, I get the following error: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line ...
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17 views

Desktop virtualization (Hyper-V / vSphere)

Is there a way to deploy vSphere on a single Desktop PC and have it do a GPU passthrough to a client (so eg. I could "switch OSs" on a key combo), or a similar solution? Note that I don't mean VMware ...
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18 views

Disk I/O controller performance

I am building an home server with an old HP media center m8125x (link for all specs : ...
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2answers
562 views

Virtualise a physical Windows 95 PC

I recently found my old Windows 95 PC in the attic. Is it possible to virtualise it before I dispose of the hardware? What is the best way of achieving this? The machine doesn’t have USB. I might be ...
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36 views

XEN HVM: GUI rendering artifacts on VNC

I'm facing a strange issue running Xubuntu (tried Ubuntu also, same problem with Unity, but no problem with Metacity) on Xen HVM while connecting to it via XEN's builtin VNC. Some parts of the user ...
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1answer
47 views

Windows 8.1 Pro restarting in VirtualBox boot from ISO (virtualization enabled)

I am trying to install Windows 8.1 Pro X86 on a VM with VirtualBox. My OS is LinuxMint 17 Cinnamon. Everything is set up properly except for the fact that I can't asign more than 1 CPU to it in ...
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111 views

troubles with PCI-E passthrough with qemu on ubuntu: pci-stub/bind says no such device

so im trying to bind my second radeon card to pci-stub, as per instructions for setting up GPU passthrough in here, but once i get to binding the card to pci-stub, it tells me it isnt there. this is ...
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1answer
29 views

What happens when KVM virtual machines try to use the same core of a processor?

I have many virtual machines hosted with KVM on a single server. The problem(?) is there are now more machines then cores of the processor. From what I found I cannot use more RAM then I have but can ...
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1answer
197 views

Installing Intel HAXM inside VirtualBox

I'm trying to install Intel Hardware Acceleration Execution Manager in a Windows 7 guest using VirtualBox. When I run intelhaxm.exe to install it, I get the following error: This isn't true, ...
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2answers
13 views

Limit VirtualBox guests to one network interface

I have one Linux (Ubuntu) box and inside two Virtualbox guests (guest1 + guest2). The host has two interfaces. (eth0 + eth1) I need to define: Host uses only eth0 Guest1 uses eth1 Guest2 uses eth0 ...
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46 views

Oracle VM Virtual Box Import virtual appliance error

While importing fedora 19 virtual applience in virtualbox i met some error. here is some description of problem: image: http://s013.radikal.ru/i323/1411/ed/071ef5dd1c47.png in error description is ...
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2answers
57 views

Virtualization enabled from host computer but disabled from guest virtualbox?

I have enabled virtualization on the BIOS and verified it by issuing this command from the host computer: I have ubuntu desktop 14.04 64 bit as host, virtualbox 4.3.10 and ubuntu server 14.04 64 bit ...
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1answer
154 views

VM share host's VPN connection

I am trying to get a (guest) VM running on my (host) machine to talk to a (remote) VM running God knows where on some server that is accessible via corporate VPN. I am able to SSH from the host to the ...
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1answer
176 views

Making a VDI image bootable for VirtualBox

I created a disk image of a Ubuntu (12.04) system by using dd if=/dev/sda6 of=xxx.img The VDI image was created by using vboxmanage clonehd xxx.img xxx.vdi --format VDI When I create a new VM ...
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1answer
28 views

Advice on buying a server for virtualization [closed]

So I am a student. I'm looking to buy a server for virtualization. I would like to test different product and make testing environments (like in production) to expand my knowedgle with server ...
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152 views

Intel VT-x not working on Lenovo z510

I wanted use my Lenovo z510 to test the new android lollipop using HAXM, but while installing it said that I have no VT-x technology. The product page says that my processor(intel pentium 3550m @ 2.30 ...
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1answer
46 views

How to shrink an VMWare multi volume disk?

I'm familliar about srinking the total space of a virtual disk of Oracle VirtualBox disks using their vboxmanage.exe comandline tool for shrinking, but now I have an VMWare multi volume disk (vmdk), ...
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1answer
39 views

Best approach for multiple virtual Mac OS environments

I'd like to test a piece of software against as many different versions of Mac OS as possible. If I was to do this with Windows I could use something like VMware to install multiple versions on the ...
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2answers
153 views

Existing Win7 machine: Install Ubuntu and convert existing Win7 to VirtualBox VM

I have a dev laptop with Windows 7 installed. I want to switch this to Ubuntu and convert the existing Win7 physical installation to use in VirtualBox running under the newly installed Ubuntu. I ...