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

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Error in running (libvirt) virt-manager 1.3.2

On Ubuntu 14.04 I installed default packages for Libvirt and Virt-manager. But it does not show support for Debian "Jessie". So I downloaded virt-manager from its Home page. I followed the INSTALL ...
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10 views

Install Linux VM on Microsoft Hyper-V VM

I have a VPS with Windows Server 2012 and it's one of the multiple Micrsoft Hyper-V virtual machines that exists on the server. What I want to achieve: Install a virtual machine with Linux. I am ...
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15 views

QEMU with GPU pass through won't start

I'm running Ubuntu and trying to configure QEMU with a GPU pass through. I was following those guides: https://www.youtube.com/watch?v=w-hOr44oBAI ...
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16 views

systemd-networkd: how to create a virtual bridge?

I am trying to create a purely virtual bridge for testing some problematic network services. On an older Debian system I could accomplish this from /etc/network/interfaces using something similar ...
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1answer
16 views

Can I make a virtual PC part of a domain?

I am using Oracle Virtual Box and have made a server (fardomain.local) this server has active directory on it and completely set up. I then made a normal machine in Oracle Virtual Box. What I was ...
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1answer
21 views

Does Windows Server 2012 R2 support hot-add CPUs?

I have a Windows Server 2012 R2 Standard guest in a virtual environment. My hypervisor (Virtualbox) supports hot-adding and hot-removing vCPU's, but it also says in the VirtualBox manual that "So far ...
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10 views

Can Vagrant use Hyper-V server as a provider?

Can Vagrant be used to provision Virtual Machines using Hyper-V server, such as Hyper-V server 2012 or 2016? Our lab has Windows licenses for guests, so since Vagrant already has support for Hyper-V ...
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12 views

How to make (and restore) an application snapshot in runtime?

I'm trying to make a snapshot of a running application, in runtime, and restore it afterwards. By 'snapshot' I mean complete state of my application - I suppose that's just memory pages and CPU ...
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11 views

making copy of one server to another

I have three identical hardware machine. I want to install and configure centos server on all machine. I need to have exactly same configuration. After some research,I know there is a way of making ...
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12 views

the most effective laptop intel processor for virtuals [closed]

I would like to buy a new laptop and then run host OS (Win, Linux) and as many virtual machines as possible (Debian with DE, 384-512MB). Which intel processor is the best for this? (please write ...
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38 views

Just Installed Virtualbox on Windows 10 host, Cannot Load Ubuntu

Just installed 4.3.12, build 9926. For reasons I won't go into right now (extensive), the newest builds of VBox crash immediately in Windows 10 Home Edition. Build 4.3.12 will actually start Vbox ...
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10 views

Xen hypervisor setup | Enthusiast | Access VM on host | Sugesstions

Planning to use Xen in a small project to learn about virtualisation, and have selected CentOS as host (previous attempts with Debian failed). Would be installing Xen on a Laptop (ASUS X550LD). Is it ...
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Hyper-V Network Adapter: virtual device ok, but no connection

As you can see from the following screenshot, I configured an Hyper-V VM with a Windows 10 guest running on a Windows 10 host. Virtual Switching to the Ethernet NIC is configured ok as External + ...
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66 views

unable to fix VirtualBox and / or reinstall it

I installed Virtual Box on Windows 7 ultimate x64 and then I upgraded my system to Windows 10. VirtualBox did work properly with both the versions of Windows and I was able to run everything ...
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3answers
35 views

VM-Guest-only internet, leave host disconnected?

I read from a computer security expert that if you really want to keep your personal data safe, don't connect your computer to the internet, as everything can be hacked. The more I think about it, it ...
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168 views

How to Enable Virtualization Windows 10, InsydeH20

I am trying to enable my virtualization on my Windows 10 machine with no avail. I need this for android development. Here are some specs: Windows 10 x64 home Intel Core i5 InsydeH20 BIOS - ...
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12 views

Updating video drivers causing problems in Hyper-V

I'm running Mint KDE on a hyper-v virtual machine. My video drivers (AMD 7970) updated today, and after that happened I started running into problems. I believe the driver update is causing Plasma to ...
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1answer
21 views

Using modern AMD chips with Vmware and Virtualbox

Looking to build a cheap PC and then install VMWare workstation and Virtualbox to create some operating system virtual machines. Do all modern chips work with VMware and Virtualbox, or do they need ...
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47 views

Would a log-structured file system on a SSD/HD mirror improve (write) performance and reliability in a virtualization environment?

I'm planning to get new Notebook as a host for several virtual machines. The host shall get a SSD drive for the sake of speed. However, I'm a bit concerned about the reliability of SSD drives for this ...
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1answer
19 views

How can I run laptops that are VMs running on a server?

I want laptops where what the user interacts with is a VM running on our server so we can easily switch between and revert them and the laptop itself is safe from being reconfigured/malware infected. ...
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1answer
47 views

How to Set up virtual Windows on Linux for remote users

Cutting to the chase… My situation First, I have 2 users wishing to use the same computer at the same. However, one (me) wishes to use both Linux and Windows, while the other (sister) only uses ...
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46 views

VMware Win7 host, Ubuntu 14.04 guest, 3D acceleration

Hello dear community I have the following problem: I used Ubuntu in my VM (VMware Workstation 12 Player) on Win7 in the past to emulate Ubuntu 14.04. And everything worked fine. By everything I mean, ...
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91 views

Unable to configure KVM (Qemu or Libvirt) on openSUSE Leap 42.1?

I simply want to run multiple VM (not at the same time). I want them to be stored in another partition (mounted here /run/media/shark/VM) and not in the default storage pool ...
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33 views

Changing MAC address on Virtual Machine

Running linux on virtual box with Windows 10 as a host. I want to edit the mac address on linux and was wondering if a network admin would see the spoofed linux mac or my Windows one? Would I have to ...
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1answer
9 views

How to remove a partition within a VDI file?

I recently created a new virtual machine (Linux) that shares the same VDI as an existing virtual machine (WinXP). The installation of the OS on the new virtual machine aborted because there wasn't ...
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11 views

SLAT disappeared after Hyper-V feature is on

So I can't run WP emulator from VS 2015. Hyper-V feature is OFF VS 2015 Emulator can't be started, because Hyper-V is disabled: Coreinfo.exe shows SLAT is there: coreinfo -v Coreinfo v3.31 - ...
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57 views

Wake On Lan for VM

I'm trying to get Wake-On-Lan (WOL) working for my VMs so that we can do some power management at my workplace. Goal Enable direct remote access (RDP) to VM Have WOL wake up VM not via physical ...
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1answer
31 views

How to add virtual NICs to my linux PC, so that they expose their MACs to ISP's domain?

I have learned how to add virtual NICs to a guest system in VirtualBox, just using Shared Adapter, then all the virtual NICs and my host's NIC will appear as real NICs to the ISP. So I guess there ...
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1answer
47 views

How to bridge enp0s3 with a peer of veth?

My Lap: Ubuntu 15.10. And I have a wired NIC enp0s3. I want to create a veth pair veth0 and veth1 and bridge them with enp0s3, and set veth1 to a new netns ns1, so that processes in ns1 can access the ...
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1answer
40 views

How do I ping virtual machines that are connected to my host pc?

I have installed VirtualBox on my pc. I have "Virtual Host-Only Network" virtual network card and two connected machines to it via Host-Only network mode. I want to check their addresses from host, ...
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14 views

Does virtualization reduce disk trashing?

If a program does a lot of disk trashing (like Chrome), can this be reduced by running it inside a virtual machine? How does a VM host handle disk writes that requested by the virtualized OS?
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60 views

How do I make a virtual machine with non-standard speed of time (timescale)?

I think it should be technically possible, but I don't know of any ways to do this in already existing software. What I mean — the "hardware" clock in the VM should be able to run at different ...
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1answer
43 views

RDP not going to multiple Screens

I am trying to use multiple monitors with an rdp session on Windows 10(host), the source is on Win 7(guest) and a Hyper-V vm. When I exec from cmd the following code mstsc.exe /span it works, but not ...
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40 views

How to use Wi-Fi adapter in virtual machine as Wi-Fi adapter?

How to use Wi-Fi adapter in virtual machine as Wi-Fi adapter? I don't want to connect some network before. I want to connect to wi-fi network in my virtual machine. No matter what it will be - client ...
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11 views

How can I Migrate the User Environment from a Windows 98 HDD to a VM?

I have the hard drive from a PC I used from 1999 to 2004 (I know, I should have upgraded from 98 by then), and I am trying to copy the whole user environment. My attempts include: Connecting HDD ...
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VM inside host VM cannot see avx cpu flag

I have an Ubuntu 14.04 server installed on a VM inside VirtualBox. This VM acts as my host for other VMs. I ran a Linux based image using qemu inside this host VM. The host VM has cpu flag avx but the ...
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1answer
17 views

Upload/Copy Virtual Box configuration to another machine?

I have setup a Virtual Box on my computer_A. And I would like to use the same configuration settings on another computer_B. a) How do I upload/share/copy a virtual box config file on/with another ...
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1answer
115 views

“AMD-V is not available” even when Virtualization is enabled in the bios

I enabled virtualization in the bios yesterday and the virtual machine worked yesterday. Today, I double checked in the bios and virtualization is still enabled. But the virtual machine is giving me ...
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2answers
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What happens to data in RAM after VM is shutdown?

I am wondering, what will happen to data in RAM memory after VM is shutdown? Since the hosting server is still running and RAM is still powered, I believe that the data will stay there until they ...
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15 views

Can't get nmap info from Brainpan2

I'm trying to setup an environment in VirtualBox for exploiting Brainpan2 (from Vulnhub). I created 2 VMs (Brainpan2 and Kali) but when I try to perform an nmap -A scan on the other 3 IP addresses on ...
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55 views

Intel-VT not enabled in BIOS on acer laptop V3-772G

Yesterday i purchased Acer Laptop V3-772G and increased RAM just for the sole purpose of using this beast for Virtualization but when i tried to install 64-bit OS it slapped me with VT error. So i ...
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1answer
41 views

Installing Ubuntu in VBox (Windows 10)?

Windows 10 is on computer. I am using Oracle VBox. I used the recommended setting (8GB size for Ubuntu and selected ISO from my computer). Ubuntu has options to try without installing and to install. ...
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1answer
71 views

Hyper-V vs Virutalbox on hardware with SSD

We plan to have a powerful CPU along with SSD with Host OS - Windows 7 or 8.1 Enterprise This PC will have VM's running Windows 7. Idea is to use VirtualBox for creating the Guest OS and boot them ...
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1answer
22 views

Is my mainboard HAV compatible?

How do I see if my Hardware-Assisted-Virtualization is compatible?
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1answer
173 views

VirtualBox 5.0.10 refuses to work on my Windows 10

I used the older version of VirtualBox (5.0.4 I think) still last week, and I could open my VM's no problem. But I reinstalled my Visual Studio 2015 Community edition on Monday, and no my VM's does ...
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1answer
44 views

How can I change the amount RAM in a virtual machine without powering off

I have a VM in my computer in a saved state. The RAM assigned is 8GB. When I start it then it gives error as HOST RAM is less than RAM on VM. However, to reduce the RAM I need to power off the VM. ...
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Find software/resource allocation changes on virtual server within last 24 hours

I am using a virtual server for computational tasks involving a NVIDIA GRID K2. An IT department is administrating the server. Within the last 24 hours the server has been rebooted and now I get the ...
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1answer
88 views

Add native boot for a windows 10 VHD inside Debian Linux

On my laptop, I have Debian. For my .net development activities, I run windows 10 inside virtually (sometimes VirtualBox, sometimes Vmware Player). The problem is that Visual Studeio 2015 is way too ...
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hyper-v problems on windows 8.1 and server 2012 r2

it's complicated and grows every minute. last day my os was windows 8.1 pro x64 and virtualized windows 8.1 pro x86 with hyper-v. it was really fast, reliable, okay; except vgpu. vgpu is remotefx on ...
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Is it possible to virtualise any CPU on any other CPU?

I recently got a Raspberry Pi and read a lot of blog post about projects on it, and wanted to try a few of them. But I also read that SD cards don't have a high life duration if we (re)write many ...