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Questions tagged [hypervisor]

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Does running a bare-metal hypervisor impede (gaming-level) graphic performance? What are the costs?

I have a laptop with an Nvidia GPU, an i7 CPU, a display port and an HDMI port. I have two screens, one connected to the display port with settings 2K and 120Hz, and the other connected to the HDMI ...
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0answers
43 views

Dual Boot vs VM vs Hypervisor vs Other for Windows Gaming + Linux setup on home laptop + dual screen

Here's some context for the questions. Dual Boot I installed Windows 10 on my first HDD /sda 128GB. I installed Linux Ubuntu 18.10 on my second HDD /sdb2 ~150GB I also previously partitioned that ...
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1answer
38 views

How come OS X allows multiple virtualization software at the same time while other systems don't?

I was surprised to experience that VirtualBox and docker's HyperKit can run VMs at the same time on OS X. Using different hypervisors at the same is not possible on Windows or Linux. How come it works ...
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1answer
128 views

Hyper-V Cannot be installed: Virtualization is disabled in the firmware

I have installed Windows 10 Education on a Macbook using Boot Camp Assistant. I have problem with running windows server using Hyper V, because I cannot select one of the options from window "Turn ...
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2answers
183 views

SSHing to my XCP-ng server connects to hypervisor and not VM even when using seperate IPs

I have an old HP ProLiant DL385 G5p server that I used to use only as a glorified NAS, but now I'd like to do something more with it, such as set up a caching DNS server for my network. I'd like to ...
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0answers
20 views

With Xen, is memory that's not allocated to dom0 or domU actually used for anything?

The recommendations for Xen seem to be to set the amount of memory for dom0 to between 1GB to 4GB. But if after allocating memory to virtual guests we have memory "left over", is that actually used ...
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1answer
31 views

Is it possible to run a single VM on two bare mettal?

I have two bare-metal machines with the following configuration: machine1 CPU: 4 cores ram: 16GB HD: 200GB machine2 cpu: 4 cores ram: 16GB HD: 200GB is it possible to have a VM using these two ...
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50 views

Oracle VM Server installation goes to blank screen after loading to initrd

I'm using my old laptop (Lenovo Z500) to build my on VM environment. The laptop has i7-3630QM processor an a Nvidia 740m graphics card. I was able to create a bootable USB of Oracle VM Server. When ...
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0answers
366 views

How to re-enable Win 10 hypervisor after Android Studio 3 disabled it

During the emulator setup to run a project it informed me that Hyper-V needed to be turned off. The wording led me to believe that I would have to do that myself, instead the software took it upon ...
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0answers
198 views

Virtual Machine CPU allocation with multiple virtual cores

I'm rather new to the field and Stack Exchange, but I'll try to make this question not garbage. This has really been bugging me recently, because I'm trying to set up something on a VPS and The ...
0
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1answer
458 views

Configuring KVM inside Ubuntu Hyper-V client

Is it possible to run KVM on an Ubuntu 18.04 guest in Hyper-V on Windows 10? Or any other hypervisor inside the guest? After installing KVM I run: sudo kvm-ok and it tells me my CPU does not ...
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27 views

Replacing desktop OS with type 1 hypervisor and guest OS [duplicate]

I'm keen to use virtual machines as exclusively as possible in place of traditional operating systems on my desktop computers. Currently I can do this by running Linux as a host operating system, ...
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0answers
39 views

Hyper-v hypervisor grayed out but is enabled in bios, worked before replaced mother bd/update bios

I had a VM with Win 7 running fine until mother board failed on HP Z640 Base Model Workstation running Windows 10 - mother board was not soft rebooting so HP replaced mother board then reboot worked ...
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1answer
1k views

Running a Type 1 Hypervisor on a Laptop

I want to run a bare-metal Hypervisor on my laptop, with the ability to run Windows 7 AND Ubuntu 17.10 at the same time. For instance, I want to be able to have both OSes running simultaneously, and ...
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1answer
931 views

vEthernet (External) - Network Adapter Unplugged - Host OS not Guest VM

I'm testing moving from VMWare Workstation to Hyper-V and I'm having a hard time with getting networking working. I use a pretty simple setup, all my VM's should have access to LAN and WAN. Every ...
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1answer
619 views

Proxmox - sharing storage across VMs on different subnets

I have a question how I can share a disk across different home network subnets (e.g. 192.168.1.1 and 10.0.0.1) to different VMs. Within the same network subnets I just put up an NFS storage, but how ...
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0answers
705 views

Using Docker and Virtualbox together on an Ubuntu Host?

So I set up Docker on a Ubuntu 16.04 Host and then installed Virtualbox on the same host to have some Virtual Machines. but after working for a while, I found out that I can only install 32-bit OS on ...
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0answers
231 views

Why does enabling Hyper-V accelerate MSYS2's process launching?

When I run this loop in MSYS2's Bash shell function test() { bcdedit | grep hypervisorlaunchtype printf "Press ENTER to begin..." 1>&2 read # warm-up for ((i=0; i<"$1"; ...
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0answers
50 views

Getting *started* with Virtualisation - at a high level

I'm a student on an industrial placement within the university's IT department and my boss wants me to head up a project to virtualise our lab environment. And while I've run a few VMs at home or ...
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0answers
401 views

bhyve RAM usage doesn't match configuration

I am currently using the bhyve hypervisor on my FreeNAS system but with only 16G of RAM, running virtual machines is more or less a stretch for the system. I have only one VM running Debian right now....
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3answers
2k views

How to build a supercomputer by linking common PCs on a network?

Fellows, I have several computers, some new, some old ( I collect them, since my first one, which has 2Kbytes of RAM, from 1979 ). The collection is getting huge, but the purpose of this question is ...
1
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1answer
158 views

What is a “raw disk” and how are filesystems set up on one?

I am trying to understand how "raw disks" work on virtual machines. If I understand correctly, if I want to run Windows off of a raw disk with KVM as my host, I must install NTFS drivers on the host, ...
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0answers
53 views

Hyper-visor Running Above Main OS

I would like to ask the implications of running a virtual machine management OS which runs all other operating systems below it. Instead of running VirtualBox on a host OS such as Windows or Linux, I ...
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0answers
388 views

Building a multiseat workstation to rule them all

My understanding is that type-1 “bare metal” hypervisors are usually used to run large numbers of virtual machines that are used by remote clients. I want to use several virtual machines on one multi-...
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1answer
2k views

How can I get my HyperVisor running?

Nearly all Google results tell me to enable it in the BIOS settings of my Lenovo T520i, but the only relevant setting I see there is Virtualisation, which is set to enabled. The Hyper-V manager works ...
2
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1answer
2k views

Is Hyper-V role in Windows 10 Pro different from role in Windows Server?

As I understand it, when you enable Hyper-V role in Server 2008 and above, it will actually virtualize Server OS itself to run on top of Hyper-V. Source: https://serverfault.com/questions/326844/is-...
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0answers
1k views

Can't start Hyper-V VM - error hypervisor is not running

When attempting to start a VM in Hyper-V I am getting the error "Virtual machine 'VM NAME' could not be started because the hypervisor is not running". I have confirmed that Virtualization is enabled ...
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1answer
28 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 ...
2
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1answer
601 views

Is it possible to use Hyper-V VM without booting into host OS

I'm a newbie in Hyper-V / Virtualization. I'm trying to explore the Hyper-V feature that came bundled with Windows 8.1. On reading some online tutorials, here what I discovered about Hyper-V. Hyper-V ...
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1answer
3k views

Why not turn on "Enable Adaptive Hypervisor” in Parallels 11

Recent versions of Parallels Desktop For Mac, the configuration has included a checkbox for “Enable Adaptive Hypervisor”. Configure > Options > Optimization > Performance > Enable Adaptive Hypervisor ...
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1answer
123 views

Is it possible to stealthy boot into a Xen virtual machine? i.e. so no one sees Xen

Since Xen is a type-1 hypervisor and not a type-2, is it possible to boot into a Xen virtual machine seamlessly as if it there was no hypervisor underneath it? I'm talking about it being such that all ...
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0answers
142 views

how to remove “no hypervisor” option on windows 8.1?

whenever i turn my pc on it shows 2 option i.e windows8.1 and Windows 8.1 with "no hypervisor" .I want to remove that option of windows8.1 with "no hypervisor" feature and want my pc to be normal ...
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1answer
294 views

Running a Virtual Machine and Hypervisor on the same machine

I've got a desktop and a laptop computer. Both run Intel hardware. I mainly do word processing, programming, watching videos and surfing the Internet (I don't play computer games). I would like to ...
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1answer
483 views

Hyperbox fail to run hypervisor

I could not start the hypervisor in my Hyperbox client regardless what type of Connector ID that I used. The status will also fail. I have tried using the portable version and the installer version ...
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1answer
119 views

VirtualBox on Windows 8.1 - revisited

Back in 2013 I asked this question, and based on the answer, created a new "no hypervisor" boot setting for my new laptop. The problem is, even after booting into a setting with no hypervisor, ...
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2answers
1k views

Is it possible to have a hypervisor with Nvidia SLI 980 pass-through gaming setup?

I am looking into reformatting my computer. I would really love to get rid of Windows finally and only use Linux for gaming/work. Sadly I am not sure this is close enough to be a reality yet. I am ...
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0answers
201 views

Does VMware 11 provide real GPU up to 2GB memory allocation or just facilitates allocating the same VRAM that comes from the allocated RAM?

Their advertisement is pretty confusing: Graphics-intensive applications can now be given an additional boost by allocating up to 2 GB of video memory per virtual machine. I just want to confirm if ...
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0answers
373 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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1answer
1k views

Disable Hyper-v in windows 8.1 pro error

I am trying to disable Hyper-V in Windows 8.1 Pro 64-bit but it is not working. I tried using Control Panel as well as by using this command: dism. exe /Online /Disable‐Feature: Microsoft‐Hyper‐V But ...
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2answers
23k views

Hyper-V appears to runs on top of the host OS, so why is it considered a native (type-1) hypervisor?

Wikipedia says: Hyper-V, codenamed Viridian[5] and formerly known as Windows Server Virtualization, is a native hypervisor...* Wikipedia itself says that a native hypervisor is type-1 hypervisor -...
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0answers
160 views

What is the best Xen Hypervisor setup for my system [closed]

I am new to XEN, I have a Asus X99 deluxe, i7-5820K 16gb DDR4 and I want to run VM's just for personal use. I would like to know what distro/setup should I use, I know a bit of Debian and Ubuntu but I ...
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0answers
70 views

Is there a way to “undercommit” memory in Linux (VPS burst memory woes)?

I've been noticing occasional drastic performance hiccups in my application hosted on a VPS. My VPS plan has 1GB guaranteed RAM and 1GB "burst" RAM. Occasionally the app will become extremely sluggish,...
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1answer
101 views

Ideal Setup for vSphere Hypervisor

I just picked up a Dell R720 for my company, it's got plenty of resources where I feel I can run multiple VM's at the same time. Here are the specs. Intel Xeon E5-2620 (2) 8GB DIMM (8) 146GB SAS ...
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1answer
201 views

How does a dynamic disk image work?

I was curious about the inner workings of virtualized computing. Most hypervisors, including VirtualBox and Hyper-V, just to cite a couple, have the option of creating a dynamic image for disk drives....
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1answer
779 views

Headless hypervisor installation

I currently have an HP ProLiant Microserver set up at home, for standard tasks - a simple Linux distro, running a few services (Transmission, Sickbeard, etc.), hosting a few websites, e-mail, and such....
3
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1answer
5k views

qemu kvm - can't start VMs after installing xen hypervisor

I had been using QEMU KVM for long time and have few VMs. Recently I installed XEN Hypervisor following this instructions but decided to apt-get remove xen-hypervisor-4.2-amd64 Problem is that now, ...
2
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1answer
284 views

Virtualization: pass audio and video from one VM to hardware

I have a Linux server at home for storage, development and testing purposes. I would like to use this server as a home theater solution as well. Now it doesn't seem like a good idea to run that ...
0
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1answer
379 views

Server Virtualization on Ubuntu Server or Something Else

Disclaimer I have little experience with Linux, VMware, or server stuff. Also, I had posted this question originally at https://serverfault.com/questions/490037/server-virtualization-on-ubuntu-server-...
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1answer
300 views

Can a type 1 hypervisor guest OS flash the BIOS?

Type 1 hypervisors run on bare metal, and motherboard vendors provide software that allows bios to be flashed from a running OS. Can I flash a motherboard bios from within a running guest OS if ...
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1answer
664 views

Access host machine port from Hyper-V guest OS

I run Windows Azure Compute Emulator on my Windows 8 PC. It's essentially a web server (it hosts my web app) and it listens on 127.0.0.1 port 80. It doesn't listen for external requests at all and it ...