Questions tagged [virtualization]

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

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Whea uncorrectable error

My pc is running windows 11 when booting with virtualisation enabled I get a "whea uncorrectable error" error message but when virtualisation is disabled it boosts up normally. What could be ...
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Why does Bochs x86 emulator use I/O ports 0e9h and 08a00h for debugging?

The Bochs x86 emulator can be configured to print every byte that arrives to the port e9hex to its console. Also, the port 8a00hex is used to enter its internal debugger. I understand that the choice ...
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libvirt and hotswappable single USB port with virt-manager - almost there?

Description USB not visible on Debian guest. I cannot see anything obvious from the logs but because I do not have much virtualisation experience I assume I missed a step in the configuration, ...
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How to Make a internal disk partition appear/virtualize like Removable USB Drive Disk?

Example Case is that: I want to create windows recovery files using using Windows recovery media creator tool. But the process needs USB drive which I don't have right now. If I can create a Virtual ...
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Destination Host Unreachable While Ping between 2 VMs

I'm trying to create a configuration of 2 VMs located on the same hypervisor, to each VM I attached virtIO interface from the hypervisor by editing the XML file of each VM. I created the VMs and I got ...
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VMWare cannot boot because Hypervisor role is enabled

I'm trying to run a Centos 7.6 inside a VMWare Workstation Pro but the VMWare fails to start because the Hyper-V and VMWare are not compatible. I have tried to disable Hyper-V but it's already ...
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How do I put the state of my tun interface to up? My tun interface is not receiving packets

Here are my command when I set up the interface: ip tuntap add dev router0 mod tun ip addr add 10.0.0.138/24 dev router0 ip link set dev router0 up Here is the output of ip addr show dev router0 8:...
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How do I save Virtual Machine state in UTM (QEMU)? using M1 Macbook Pro

I am a beginner in dealing with virtual machines. I have managed to boot up a virtual machine (Ubuntu) using UTM on my M1 Macbook Pro. However, I have been having a hard time figuring out how I can ...
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Connectx-4 lx virtual function devices not working

I have enabled sr-iov and added vfs in the driver properly per the instructions. The problem is that after I add a virtual functions via sriov_numvfs I cannot seem to configure them nor use them in ...
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VMWARE ESXI 7.0.1 don't recognize RAM installed after upgrade

I have a Oracle Server X6-2 ESXi 7, I installed with two(2)x32Gb ram DDR4(for 64 in total), but recently I upgrade the server to 128GB, with other 2x32 Gb modules. The BIOS and ILOX recognize the ...
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VMware 16.1.0 PRO Machine worked before but now fails with "The firmware encountered an unexpected exception. The virtual machine cannot boot."

I am using Home Assistant virtual machine on Vmware for very long time. It always worked reliably. But now, suddenly, without any changes, it fails to boot with "The firmware encountered an ...
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I can not run any Windows 11 VM on my Windows 11

I have AMD 3800x with SVM enabled and I tried to run Win 11 VM using VMWare and Virtual Box without any success. VMWare display error Virtualized AMD-V/RVI is not supported on this platform. Continue ...
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Programatically connect and disconnect USB devices to Guest in VMware Workstation

I am using a VMWare Workstation VM using Vmware-KVM and I would like to programatically connect and disconnect USB devices connected to the host to my guest operating system, and vice versa. Basically ...
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Hiding Hyper V Virtualization

I’m new to using hyper V and I have a windows 10 host os to windows 10 guest os. For hiding the virtualization in VMware we can add hypervisor.cpuid.v0 = false and the cpu does not get shown as a ...
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How to install or use Ubuntu server minimal img file with KVM?

Ubuntu has these minimal server images here and I downloaded the ubuntu-18.04-minimal-cloudimg-amd64.img image. However, it is not quite clear to me as to how this image is to be used with KVM. Ubuntu'...
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What are the technical reasons why Virtual Box is limited to only use 256MB of video memory?

I saw, that Virtual Box can only use 256MB of graphics memory. Changing it in the settings file to be higher then the draggy-thing permits, always resulted in a crash (which is probably why they ...
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How to create a Windows virtual machine using Hyper-V Manager

I am trying to create a Windows virtual machine using Hyper-V, but I have several issues. I tried following instructions on this page, to use the "Quick Create": I was ...
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QEMU/KVM, using full physical disk is faster than raw .img file?

When adding an HDD to a guest in QEMU/KVM in Virt-Manager, there are "qcow2" and "raw". "raw" seems to be storing the data in a file with the ".img" extension. ...
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Possible to move a guest OS on VirtManager (Linux) to Windows?

For VirtualBox or VMware Workstation,one could copy the guest OS data directory to another computer and run it there. For example, I could create a guest OS on Linux, and then copy the guest data ...
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Why Does Windows Virtualization Stop Working?

I have a Sony Vaio laptop running Windows 10 21H1, and I've been running a Debian guest on VirtualBox since 2016 without incident. Last Saturday, I attempted to start the guest, and VBx failed with a ...
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How to enable Hyper-V in a windows guest?

I have a Windows guest OS installed under QEMU kvm (host is Linux), the system works fine, but Both task manager and systeminfo showed that Hyper-V is supported but disabled in firmware, how can I ...
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WSL and Hyper-V suddenly stopped working

I'm running Windows 11 21H2 22000.613. I use both WSL 2 (Windows Subsystem for Linux) and Hyper-V on a regular basis. One day they both suddenly stopped working. When I run Hyper-V, it doesn't display ...
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Hyper-V machine sometimes gets stuck when enabling wsl2 (nested virtualization enabled)

I have a machine running a windows 11 VM with nested virtualization enabled. when enabling wsl2 features and restarting the VM sometimes "halts" in the reboot process. seemingly for no ...
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Ubuntu 20.04 Hyper V Unable to Connect to Internet

I have a dedicated Server and i got 2 ip address in different subnets xxx.xxx.33.116 xxx.xxx.38.127. I have configured a Hyper V Virtual External Switch for the Ubuntu Vm. I have put the Static ip ...
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Would AVG be able to detect a rootkit running as a hypervisor?

I am trying to install and set up flutter on my computer, and along with it, an android emulator to test my code, through Android Studio. However, in order to set up the emulator, it says I should ...
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Some Virtual Machines can't co-exist with WSL

Some of my virtual machines in VMWare (Windows guests) only work when 'Virtual machine platform' is disabled in 'Optional windows features' This in turn breaks WSL Anyone else encountered this. This ...
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Vt-x settings always revert to disabled in BIOS

So everytime I enable VT-x in the BIOS, the setting will be reverted to disabled in the next restart. Any clue why? here is my pc specs VT-x supported Hv not supported Windows 7
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VirtualBox guest doesn't boot up. I only get a black screen

I have a problem with my Virtual box. When I try to start a guest OS, it doesn't start and I get a black screen. I tried to disable Hardware Virtualization an 3D acelaration but the only thing that ...
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Win10 Credential Guard - Tracing source of blank Windows Security Prompts [duplicate]

We are trialing Windows 10 Credential Guard on workstations at our company, and things are working well for the most part, but there are some users that get spammed with empty Windows security prompts,...
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QEMU savevm crashes QEMU

I created an Ubuntu VM with QEMU on host OS macOS Monterey. Trying to do savvy crashes qemu with the following error code. ------------------------------------- Translated Report (Full Report Below) --...
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How to turn off Hyper-V on Windows Home?

I'm using Windows 11 Home and had installed WSL. Apparently wsl2 uses hyper-v so that's causing problems when I want to run VMs. I'm not sure how to turn hyper-v off though. Since I'm using Home, ...
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How to access files / directories in disk image that are locked with old permissions?

I just recently upgraded an older desk top Windows computer with a new motherboard, CPU and DIMM memory sticks. The upgrade is meant to still use the same SATA drives a before. Prior to starting the ...
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Virtualbox Virtualization error even though hardware virtualization is enabled

I've been using virtual machines for a while but, this is something new and confusing. The other day when I tried to boot up a VM it came up with 2 virtualization errors [(Not in a hypervisor ...
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Why qemu can't detect a WHPX (Hyper-V) accelerator?

I've been messing around with qemu on Windows 10. I found HAXM as a slow accelerator (for me has the same performance as TCG) and I want a better experience. I found that qemu supports WHPX, using -M ...
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How to lock and unlock VMware or VirtualBox VMs with a fingerprint device?

Is it possible to lock and unlock VMs in VirtualBox or VMware using a fingerprint device in Linux? I know that VMware's latest versions supports virtual TPM, but i want to encrypt and unlock the ...
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Enabling SSSE3 flag on a VM running on KVM

How do I forward the SSSE3 flag from my host server to VM while using KVM? I tried the following. My QEMU version is qemu-kvm-1.5.3. My host server has the SSSE3 flag enabled (output cut for brevity): ...
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Ping Linux virtual mashine from Win10 host

I start Linux virtual mashine via Wmware on Win 10 host. In Wmware Network settings I chose host only. After pinging VM from host I received answer "Request timed out". How can I solve this, ...
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How can I transfer data from a virtualbox .vhd to a physical harddrive?

I have a virtual machine (Arch Linux) on a Windows 10 Host. The virtual hard drive is stored in a .vhd file. I have a desktop that is currently Windows but I'm going to dual boot with the main ...
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Is there any way I can use interface created in virtual machine on my host machine

So basically I use gentoo on my host machine, and I have windows 10 virtual machine, in which I created virtual network (using RadminVPN). And what I want to do is to make my host machine use this ...
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Sawtooth Software installation error indicates I have the wrong processor achitecture. My Windows device specifications indicates the opposite

I am running Parallels Desktop on a MacBook Pro (Big Sur 11.5.2) with an Apple M1 chip. I’m trying to install Lighthouse Studio from Sawtooth Software, but it gives me an error message in which it ...
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ping dns works but nslookup fails?

I have an issue with DNS in my current lab environment, this happened after a snapshot recovery on the DC image : Following Screen shows that i can ping google.com but nslookup google.com fails, i ...
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Virtualization Plus Dual Boot

tl;dr Is it possible to run a Linux as a VM guest on top of Windows, where the Linux and Windows are dual-boot (grub) "siblings" so to say? Why? Sorry if this seems unnecessarily hairy. ...
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Which Ubuntu storage options should I consider while working on UTM VM Mac?

What is difference between use entire disk and custom storage layout?
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Hypervisor detected. Unable to uninstall Hyper-V on Windows 11 (Windows Surface Pro+)

I have purchased a new Microsoft Windows Surface Pro 5+. Windows was pre-installed. I noticed that a 3rd party tool output a warning that my license it not valid for terminals. The developers told me ...
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404 upon vagrant up. http://us.archive.ubuntu.com not found

I am a newer developer on a windows machine trying to set up my environment with a vvm using Vagrant , Virtualbox, and Ubuntu. I have run vagrant init and generated the vagrantfile but when I run ...
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Does it matter if I set a weak password for WSL?

I have a Windows operating system with Windows Hello PIN setup for login. I also have installed WSL2 with Ubuntu 20.04 LTS. I don't run SSH server under WSL. However, Windows (so WSL as well) is ...
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Proxmox installation

I just recieved my new hardware that I will use as homeserver, I have a question, how it will be the best to install the PVE if I don't have a small storage option ? I'm curious about your point of ...
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`vboxmanage list hostonlyifs` creates host-only interfaces

If I run vboxmanage list hostonlyifs in my shell, I get the following output: $ vboxmanage list hostonlyifs Name: vboxnet0 GUID: 786f6276-656e-4074-8000-0a0027000000 DHCP: ...
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Is it possible to use paravirtualization to share a GPU with a Windows guest to enable gaming on Linux?

My objective is to run games on Linux, maximising compatibility by using a real virtualized instance of Windows (e.g. VR, day 1 game launches, things like that). I understand that you can use PCIe ...
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Cannot create virtual switch Hyper-V (0x80041002)

I had a situation where a VM in Hyper-V on Win 10 Pro (build 19043.1415) wouldn´t stop and the first thing I did was stopping various services related to Hyper-V. After that I rebooted the host, and ...
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