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Questions tagged [virtual-machine]

A virtual machine is an emulation of a guest operating system, running on virtualized hardware within a host operating system.

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Manage file and printer sharing using a script

I have a problem with a Hyper-V internal network adapter and my external network (Intel Wi-Fi). Sometimes after starting a VM I lose access to my network shares both from my LAN and from VM itself (I ...
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nvidia-smi No devices were found on KVM VM

OS - Ubuntu 18.04.1 LTS RAM - 8GB GPU - Nvidia GeForce GTX 1050Ti Laptop - Acer Predator Helio 300 Secure Boot - Disabled I followed KVM : GPU Passthrough guide to launch VM that should use GPU. ...
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Azure VM, how to send keyboard data to Win Boot Manager menu

How can I use keyboard in Azure Boot Diagnostic, I can see my VM in hanging in the BOOT MENU and I need to press F8. The OS is Win7
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(On a mac) - VirtualBox not able to access the .vmdk file for a usb virtual machine

When selecting my virtual disk in virtualbox, the error reads as in the photo. I have done this successfully while "sudo -b"-ing the executable in the app, but I need the file to be under my user.
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Will VirtualBox effect my wifi connections? [on hold]

So i was installing virtual box and it said "VirtualBox might affect wifi" is it bad? or will kit affect my pc?
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Virtual Box VMs Ubuntu and RedHat cannot access shared folders

Info: 1- I am running Fedora 29 as a host. 2- I have VirtualBox 5.2.22. 3- I have Ubuntu LTS 18.4 VM and RedHatEnterpriseLinuxServer 7. 4- All my VMs have the appropriate version of guest additions ...
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Batch file to run in host machine and load/call a batch file in guest VM

I have a host computer running Windows 7 with VirtualBox installed.  I have a virtual machine, also running Windows 7, with guest additions (latest version) installed. I need to run a batch file in ...
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Full Clone VDI with VBoxManage.exe

What is the command-line switch that I should use to create a full clone of a given vdi? I want to be able to clone the virtual machine such that all files, folders and applications are also copied ...
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Possible to have multiple VMS with each one connected to a seperate wireless adapter (USB)? [on hold]

And can multiple wireless USB adapters connect to the same USB port using a USB hub?
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1answer
26 views

Cannot access server on Virtual Box from the host?

I am running Ubuntu 18.04.1 in Virtual Box on MacOS. I setup a localhost server in Ubuntu using Python Flask running on http://127.0.0.1:5000/ I am trying to access this localhost from my Mac, but can’...
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2answers
44 views

How do I use VMDKs with VirtualBox?

I've got a backup of my VM's old VMWare folder including the VMDK files. It looks like VirtualBox should be able to handle VMDKs, but it's telling me it can't. Googling about it everything just ...
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Virtial machine that feels native?

Is it possible to have a fully functional native OS desktop experience (Windows) on a virtual machine that doesn't feel like it's a guest OS? Kinda like Virtualbox but once it's loaded you can't tell ...
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How to safely edit code remotely in unstable linux system [on hold]

Background: Right now I am using win-sshfs using to mount a remote UNIX (debian - scratch on a vmware player 14) and edit it over visual code over in windows. The problem I am facing is because the ...
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1answer
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Can connect (telnet, dovecot etc) to my own server from an external network but not when I am on the same lan

I have a server (mail - postfix+dovecot, web - apache) on a kvm guest where the host is on a local network behind a normal router (zte or whatever the ISP provided). KVM guest has an IP on the same ...
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Windows guest OS mouse in Virtual Box VM triggers host OS GNOME favourites bar

Ever since the upgrade from Ubtunu 16.04 to 18.04, I've been having the following issue in my Oracle Virtual Box VM Windows guest OS whenever mouse integration has been turned off. If the guest OS is ...
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1answer
27 views

Extracting identifiable data by websites from one VM to another

Apologies I'm not a techy..... I currently use Windows 10 virtual machines on VMWare Workstation for a few projects and wanted to know if there is a way to export all the identifiable data that a ...
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VirtualBox - Installing Windows 10 to a raw disk on a macOS host

Guided by Use physical harddisk in Virtual Box, I allocated a physical partition on an external device (/dev/disk1s1 in my case, not that it should matter) to be used as a raw disk (i.e. a VMDK that ...
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Looking to access a website multiple times, by different users, simultaneously, without detection by the website [closed]

Firstly thanks for dropping by. Let me explain my situation. Simply put - I need a system whereby I can access the same website multiple times, by different users, simultaneously, without detection ...
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1answer
15 views

allow other networks to connect to my computer through the internet

I am trying to create a virtual machine with virtualBox which can be accessed from other networks. I explain myself more; I have an application in my virtual machine and I want that from another team ...
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27 views

VMWare Workstation: Use Windows Virtual Desktops to quickly switch between host an VM

I am using VMWare Workstation 15 to virtualize a linux VM on my Windows 10 host. In Windows 10, you can have multiple (virtual) desktops and switch between them using a hotkey Ctrl+Windows+Left arrow/...
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1answer
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Guest unikernel on KVM can't reach host, but host can reach the guest

I'm trying to make a rumpkernel (https://github.com/rumpkernel) run on KVM, connect to a socket on the host and send some data. I am able to make the host access the guest using the nginx example ...
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1answer
65 views

Virtual Box Bridged Adapter can't Ping Host < OR > Guest

I have a windows 10 Host machine running Virtual Box 5.2.22 the IpAdress is 192.168.1.24 mask 255.255.255.0 (class c). I have a guest OS windows 10 with IP 192.168.1.252 mask 255.255.255.0 (class c). ...
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QEMU crashed while trying to boot up i.MX6q device kernel

When tried to boot up Kernel uImage of an i.MX6q based embedded device, it seems that QEMU crashes with "Unable to handle kernel NULL pointer dereference at virtual address 00000044". Before crashing ...
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Cannot start VirtualBox on Windows 10 - (Failed to acquire the VirtualBox COM object)

Greetings to the community, I recently tried to open my VirtualBox (windows 10 host OS) after approximately 3-4 months (when everything was perfect). Unfortunately, now the VirtualBox is unable to get ...
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1answer
38 views

Do I need to turn on VT-x in order to make a virtual machine using Oracle VM?

Do I really have to turn on VT-x in BIOS to make a virtual machine? I keep getting the error about VT-x not being turned on but I feel like turning it on could have a negative impact on my computer. I ...
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24 views

Switching between virtual desktops with and without VPN: Do I need a VM for this?

On a windows 10 machine I would like to use my university's VPN for browsing academic stuff, and at the same time use the internet connection without VPN for unrelated pages (i.e., when connected to a ...
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28 views

Sync and Access A VirtualBox VM from multiple computers, possibly using OneDrive

I have a vm that I'd like to be able to access from either home or my office. Currently, I can access it using TeamViewer, but this isn't really ideal. Does anyone if I can store the vm in my ...
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2answers
190 views

Is it possible to simulate a minimal GPU inside a VM?

I want to play a 1995 game inside a virtual machine. I only have one GPU, which is from my i7, but this GPU is being used by the main machine, so I cannot put it inside the VM. Is there a way to ...
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2answers
130 views

Virtual Box changing RAM allocation

I have tried to change the amount of RAM allocated to a Windows 10 VM - host is Linux - but this doesn't appear to be reflected in the virtual machine.
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25 views

How to open an Ubuntu VMWare VMDK file on a Windows box

Someone made a .vmdk file for Ubuntu Linux that I'd like to open up in VMWare Workstation 12 Pro on a Windows 10 guest operating system. I tried creating a new Virtual Machine, selecting an an iso of ...
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Ubuntu 18.04.1 + VirtualBox 5.2.22 - VM hangs/freezes when I press printscreen button

I am running Virtualbox 5.2.22 on Windows 10. The VM is a fresh install of Ubuntu 18.04.1 with 6 processors, 8GB of RAM, and 128 Video RAM. Guest additions is installed. If I press the printscreen ...
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VirtualBox Windows 10 with Ubuntu guest is too slow without 3d Acceleration

I have been using virtualbox in windows 10 with ubuntu guest for a while, the virtual machine options had enabled '3d acceleration' and everything was working fine. Nevertheless the screenshots that I ...
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No sound in Windows 2000 Datacenter Server VirtualBox VM

I've got a VirtualBox VM with Windows 2000 Datacenter Server SP1 installed in it, and it's mostly running fine, but I've been completely unable to get sound working; when I go into the "Sounds and ...
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1answer
197 views

Is there a significant issue to allocating all available cores to one VM if that is the only major task running?

I have a one-off task that requires me to use a VM to fix a build bug a software project using SCons (Python). The testing cycle is fairly short, resulting in frequent rebuilds. I'm using a 4-core ...
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1answer
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Windows 8 virtualization enabled in BIOS but doesn't seem to be working. Also no hyper-v installed

I am trying to use Android Studio on my machine. After attempting to run emulators, I was getting errors letting me know that my virtualization was disabled. Therefore, I went to BIOS and enabled it ...
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27 views

Isolate a guest VM from host with only giving internet access

My Windows 10 Pro PC is connected to a modem-router via ethernet cable. I want to create a VM with Hyper-v that will have internet access but that is isolated from host. I know that external switch ...
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Reliable disk image format

I've recently ran into disk image corruption issues if the host computer crashes. I'm experimenting with different hardware setups and a host PC crash caused (already a few times) the VHD image to be ...
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Running Virtualization with an External SSD

I work as a Malware Analyst, and therefore, using VM's is a constant to being sure that my network is safe. I am at the point now that running 3 different VM's on my Dell Latitude, has sucked my ...
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Remote Desktop Connection to VMs(bridged connection to mobile hotspot)

I have a Dell precision tower that hosts 10 virtual machines. Each vm has own bridged connection to internet via WiFi adapters. The setup is following 10 virtual machines 10 WiFi adapters 10 mobile ...
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1answer
27 views

Access to VirtualHosts from the local network

I have a Ubuntu Server 18.04 over VirtualBox VM where I've installed Apache and Nginx for some testing. The VirtualServer example.com up and running on the local machine. That VM is configured with 2 ...
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1answer
34 views

VMWare Workstation Host-Only causes Slow Host Internet

I have need to put two of my VM's on the same network, a network that doesn't have or share internet. So I set up a "host-only" network. The trouble is, when I launch either of the two VM's, the ...
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31 views

Fix no network access on a vm virtualbox

I've been pulling my hair out, trying to understand why my virtualbox vm has no internet. I am running a windows 10 x64 host with a windows 7 x64 VM. I have tried bridged connection, Nat network, host ...
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27 views

HortonWorks HDP setup using a bridged network on VirtualBox

Sorry if I am posting in a wrong place. I am trying to access Hortonworks HDP from another system using SSH in the same network. For that I have configured the virtualBox network using NAT and Bridged ...
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0answers
42 views

Migrating CentOS to Hyper-V fails to boot GNOME

Centos Version: 7.5.1804 Kernel: 3.10.0-862.14.4.el7.x86_64 I have prepared a CentOS VM using virtual box on an internet connected machine and imported it onto a network without internet connectivity....
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1answer
24 views

Windows 10 VM Bootloop

I've replaced my intel i5 with an amd ryzen 7. Now my Windows 10 VM (libvirt/qemu) won't boot, it just shows "preparing automatic repair" and then reboots. I cannot boot from a rescue iso either. I ...
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1answer
29 views

How To Run win 10 From Internal Hard Drive (VirtualBox)(Fedora)

I have dual-boot win 10 & Fedora. I want to run the win 10 in Fedora using VirtualBox, how do I do this? I do not want to make an ISO of my OS like this. https://www.makeuseof.com/tag/create-a-...
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30 views

OVS DPDK inside Libvirt VM

I want to use OVS DPDK inside a libvirt VM. I have the same scenario on physical machine which I want to replicate on VM, I am trying to create bond with two interfaces which are connected from a ovs ...
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0answers
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Why does VMware stop writing data read using ddrescue?

I'm using VMware Workstation 15 Pro to run a VM containing some pretty current rescue-Linux to rescue data from some broken USB-HDD using ddrescue. That starts working fine for some GBs of data, then ...
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2answers
78 views

Full Linux system restore into live remote VM

Is it possible to do a full system restore into a remote Linux VM live? Say the remote system was boot up as Ubuntu 15.04, then I restore a Ubuntu 18.04 full system to it, while the Ubuntu 15.04 is ...
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Virtual Box gets stuck, have to press cancel to wake it up

My virtual box gets stuck particuarly: When UAC dialog comes up During installation, it doesn't proceed. Sometimes mouse will not work inside (sees mouse can't press close button) The work around ...