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

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Host system hangs when starting any virtual machine in Hyper-V

This is a problem that I noticed several times now and I can't find any answer to this, so I hope that anyone of you can help me out. Today I wanted to start a virtual machine in Hyper-V running on a ...
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7 views

Why can't my virtual machine reach the host?

After creating the appropriate rule in Windows firewall, I can ping my host machine from the VM: demo@ubuntu:~/aenea/server/linux_x11$ ping 192.168.85.1 PING 192.168.85.1 (192.168.85.1) 56(84) bytes ...
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53 views

Solaris virtualization-zones [on hold]

In the context of virtualization in Solaris, could someone provide a short description of the following: Zones Kernel zones Branded zones Non global zones
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9 views

Allocating server CPU cores to virtual box guests for heavy compute, light i/o load

Please share your recommendations for allocating CPU cores to guests on big iron. I am asking basically this question 6 years later: Is there an optimal setting for the number of CPU cores exposed ...
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0answers
18 views

Where are Xen guest config files stored?

I'm new to Xen stuff. I have a XenServer 6.5 running, with XenCenter and a Debian installed as a PV VM. I'm trying to setup the extra security now so I don't have to learn about it after I've been ...
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11 views

How to virtualize a server and run it? [on hold]

I have two different servers and would like to have backup of one to another. Their HDD size is different. I believe that I can virtualize one to another. Also, I might need to run that virtualized ...
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1answer
33 views

Running device firmware on a computer

I was wondering how I would go about running device firmware in a virtual machine on Windows 7 or some other way on windows 7. I am specifically thinking of running the Broadband-Hamnet firmware for ...
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0answers
21 views

Unable to log into encrypted root drive after running virtual machine

I am unable to log into my encrypted hard drive on the host which is Ubuntu 14.04 LTS desktop. This all happened after I did the following. Ran VirtualBox Created a VDI drive Installed Kali Linux ...
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38 views

Windows 8.1 keeps wanting to repair itself after installing Visual Studio 2013

I have a hp 650 with virtualization enabled. I installed windows 8.1 pro. I also installed Visual Studio 2013 Pro. However, after installing VS 2013 and at some point rebooting, Windows refuses to ...
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17 views

Some audio devices (PCM_in) could not be opened

Some audio devices (PCM_in) could not be opened. Guest applications generating audio output or depending on audio input may hang. Make sure your host audio device is working properly. Check the ...
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18 views

Physical processor to virtual processor scaling [duplicate]

If I have a Windows Server 2012R2 with Hyper-V role installed, and the configuration is: 4 processors, Intel Xeon E5-4620v2 and each one is 8 cores/16 threads, can I utilize enough power for ...
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1answer
35 views

How to enable virtualization on samsung 300E4A/300E5A/300E7A/3430EA/3530EA

Im running android studio. However when I try to debug I get the following: emulator: ERROR: x86 emulation currently requires hardware acceleration! Please ensure Intel HAXM is properly installed and ...
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6 views

Error when running boot2docker from inside Virtual Box

I get Non existent networking host interface name: VirtualBox Host-Only Ethernet Adapter #2 (VERR_INTERNAL_ERROR) error when I try to run boot2docker from virtual box. Error Details: Result Code: ...
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14 views

virtual network setup for NAT?

Trying to test NAT traversal for FTP. For that I need to setup 4 VMs with 2 interfaces each. I was thinking of creating a virtual network & testing on that. what are the virtual network simulation ...
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14 views

Why does my VMware Player Windows guest create all files with executable permissions on Ubuntu host?

I am running Win8.1 in VMware Player 7.0 with a shared folder with my host Ubuntu 14.04 system. Whenever I create or save a file in Windows, it gets the permissions -rwxr-xr-x in the Linux file ...
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12 views

How to access HDMI out port on Virtual Box Virtual machine?

I have installed Android OS as a virtual Box VM on windows 7. I was wondering if we can access HDMI out on virtual box Virtual machine. Is there any way to achieve that.I have researched a lot on ...
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27 views

How can I emulate Windows Server 2008 R2 with QEMU? / Cannot virtualize Win2K8 R2 using QEMU on Windows Host

I have used precompiled QEMU 2.2.0 (64-bit version) to emulate a PC running Windows Server 2008 R2. The Host OS is Windows 8.1 Enterprise 64-bit, and my CPU doesn't support Intel VT-x so I can't use ...
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30 views

Hyper-V won't start - Not enough storage available to complete this application

on windows 8.1 Pro 64bit when in Hyper-V Manager click Start Service, after a while (cca 60s) new event apears in event log - System saying: The Hyper-V Virtual Machine Management service ...
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1answer
57 views

Which system is this?

I'm working on a project that build its image .qcow2 based in a temporary file system generated in /tmp/ folder. It looks like this: $ls -la /tmp/ -rw------- 1 root root 7G Jan 30 09:55 ...
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5 views

how resources control transfers between host operating system and guest operating system?

can someone explain how resources(CPU, Memory, IO) are managed and controlled by host operating system and guest operating system ?
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7 views

How to do sr-iov port mirroring

Is it possible to do port mirroring while using sriov in the same host and in different host I am using libvirt and openvswitch What must i do? Perhaps bridge two controller virtual function If yes, ...
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1answer
10 views

Sr-iov must be vlan?

I am trying to use sr-iov to pass packets to vm Is this obliged to work with vlan when working with sr-iov? If not, according to what will the different vf receive the packets?
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1answer
147 views

Intel Virtualization Technology and VT-X won't work in Windows 8.1

I am trying to run an x86 Android Virtual Device using Intel Virtualization Technology and VT-X. These features are required for the emulator to run correctly. However, I can't seem to get it to work. ...
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28 views

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 work. The USB 3 ports, on the other hand, are working. This is happening ...
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1answer
47 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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8 views

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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1answer
19 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
27 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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12 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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25 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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61 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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9 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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56 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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12 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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80 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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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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19 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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70 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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17 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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46 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
171 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
40 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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60 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
292 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
72 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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107 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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103 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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27 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 ...