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

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WMI, VMWare: Wrong ChassisTypes from Win32_SystemEnclosure

On Windows 7 installation on VMWare, following WMI query: Select ChassisTypes from Win32_SystemEnclosure is returning 1 (Other), and not expected value 3 (Desktop). It returns correct type on ...
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14 views

Vagrant private network with connection to the Internet

We have a set of integration tests which spin up several virtual machines. These VMs communicate with each other but also needs access to the outside world (e.g. yum repositories). We're considering ...
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2answers
39 views

Can unplugging a VM be harmful?

We know that unplugging the power cable from a PC may damage your hard drive and may corrupt your OS. Could the same harm (or any harm) happen if I unplug a VM (simulated by Power Off option in VBox ...
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35 views

VirtualBox VMs on internal network intnet can not communicate

I'm using two hosts, one under Ubuntu 14.04 x64, the other under Ubuntu 15.10 x64. Both are up to date. I'm running on each machine the same VirtualBox version : 5.0.16 r105871, installed from the ...
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1answer
112 views

Windows Update no longer checks for updates in Windows 7 Ultimate

This problem began a few months ago and it this point it is becoming annoying. I run Windows 7 Ultimate in a virtual machine (VMware Fusion) on an iMac (Retina 5K 2014). The Win7 VM was built from an ...
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11 views

How to uninstall the SVGA drivers from a VM?

How can I remove the drivers because after I installed them on my mac oxs 10.11 everything is black and there is no dock. What do I do.
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1answer
52 views

making VMware Player read ISO files

I am running VMware Player 6 (as far as I understand, the last version of VMware player that can run on Win32) on Windows 7 32-bits. I think I managed to successfully create a virtual machine and ...
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1answer
64 views

No Transparency in Mac Virtual Machine

I am running Windows 8.1 natively with Mac OSX El Capitan running via VMWare Player 12 and I have noticed there is no transparency. This might have something to do with the VM having only 128mb of ...
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1answer
25 views

How available network bandwidth is divided among VMs?

One way to divide bandwidth can depend on the CPU, means every VM is getting a chance to use the NIC whenever it is getting the CPU cycles. But now a day we have many other way to share the same NIC ...
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3answers
111 views

Running a bare-metal hypervisor and VM on the same machine

Is it possible to install a bare-metal hypervisor on a computer and run VMs created using that on the same computer? what I'm going to achieve is like Installing a VMware workstation on a Microsoft ...
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30 views

Is it possible to emulate old non-atx power supply in VirtualBox

I want to emulate old non-atx power supply in VirtualBox or other similar virtual PC emulators. Is it possible?
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2answers
27 views

why are my network settings inside of my VM different than my host pc? How is it still establishing a connection?

My default gateway is 10.12.1.1, but on my VM its showing my gateway as 10.0.2.2. I tried setting my gateway to 10.12.1.1 and I lost internet. And then I tried to open a browser and visit 10.0.2.2 ...
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27 views

DigitalOcean droplet to ovf file

I wanted to download the snapshot of the digitalocean droplet VM so that i can run on the virtualbox, since there is no option available to download the snapshot, i wanted to convert the centos ...
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1answer
27 views

Keyboard stopped responding on my Windows VM's hosted by OSX

I am having an issue with all of my Windows virtual machines running on top of OSX El-Capitan version 10.11.3. Hardware is MacBook Pro 15" Mid 2015. The issue is that my keyboard input stopped ...
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1answer
29 views

VMware Windows 7 corrupted, need to recover my files

I installed a Windows 7 operating system on VMware virtual machine and my host computer is running Windows 10. My Windows 7 operating system of virtual machine is corrupted and I need to recover some ...
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29 views

Can i still get a virus from a virtual machine?

I have set up a virtual machine for virus testing. Is it really safe so my Host pc can't get any virus? I have avast running on my host pc and mbam on my guest. When i download any virus, mbam ...
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1answer
66 views

Imported VMs don't start but load in infinite loop

I have imported an ova file into VirtualBox via File -> Import Appliance, but I only get the screen and then the screen The bar in the second screen runs twice till the end, then the frist ...
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2answers
62 views

Can't ping two internal networks

I have created two machines on virtual box. Each machine has one internal network interface. To set the static ip on each machine I used the command ifconfig eth1 ip mask up. These are the IPs: ...
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19 views

What is the best VM network adapter method for VPN?

Remoting into my work computer is tedious and slow. To fix this I started using the company VPN, however the ODBC connections are validated through the machine name so my home PC does not have access. ...
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27 views

NoMachine connection to Virtual disables copy pasting

I am running a Redhat instance in VirtualBox. The computer itself is running Ubuntu. Whenever I use NoMachine client to connect to my Redhat VM through another computer it disables copy and pasting ...
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17 views

Using windows-only hardware in a windows virtual machine with a linux host

I have a printer that will not work properly with CUPS on my Linux host, so I need to use windows to print things. I want to do this using a windows virtual machine, as opposed to having to dual boot ...
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1answer
90 views

How to get VirtualBox VMs to my new host?

On my old computer I just copied the folder VirtualBox VMs to my external harddrive. Now I would like to restore those VMs. How am I able to do this using the folder "VirtualBox VMs" that I copied? It ...
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31 views

Mounting Windows host folder in Virtualbox without vboxfs or Shared folders

While trying to use Docker on Windows, I hit a Virtualbox vboxfs bug that mmap see old versions of files that are mounted using shared folders. In whatever way I change the file on Windows host, ...
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1answer
64 views

Open '*-flat.vmdk' file to restore data

vmWare Worstation 10 suddenly crashed. After trying to reboot the virtual machine next error was shown: "NOT REACHED: d:/build/ob/bora-2844087/bora/lib/disklib/sparseChecker.c:1308". After some ...
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28 views

Cannot do passwordless SSH from Mac to Ubuntu VM [duplicate]

I am trying to setup password less login from my Mac OS X to to Ubuntu VM created by Virtual-box. I am using NAT->port forwarding option in VM and have host port as 3022. When I do ssh -p 3022 ...
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1answer
32 views

linux red-hat 7.1 version + dropped increasing from ifconfig

please advice what could be the root cause for dropped increasing problem? as the following: ( we see dropped 2201101 , and this value increased evry sec ....) on Linux red-hat 7.1 eth1: ...
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2answers
97 views

Solution Virtualization not Supported, BIOS missing virtualization option?

In my system BIOS virtualization option is missing. After research found that my system doesn't support virtualization. Laptop model : HP DV6-1152TX Processor : Processor type - Intel Core 2 Duo ...
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28 views

Koding.com - Can I download / export my VM?

This question arises out of curiosity - Can one download or export VMs from Koding.com that can be imported in VM software such as VirtualBox or VMWare since they are AWS EC2 Instances?
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18 views

Hyper V Linux website hosting & opening in network windows systems

I have just started learning Linux on my own. I have installed Ubuntu 15.10 desktop version & installed lamp server also... I have installed apache GUI & created virtual hosts example.com ...
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23 views

Virtual Sound Card for Windows Server 2008 R2 SP1 x64 virtual machine

I have e2eSoft VSC - Virtual Sound Card successfully installed on my Windows Server 2008 R2 SP1 x64 virtual machine. It seem like driver works (new audio device in Device Manager group and VAC control ...
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29 views

How to configure Network for VPN in Lab on VMware

I want to configure home lab for VPN connections. I configure all of systems but I can't establish connection between computers. Now I don't add any Linux routers or etc. I have virtualized Ubuntu ...
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2answers
70 views

Why does antivirus on my host machine act up when VirtualBox is infected with a virus?

I'm testing vulnerability and severity of certain viruses on my Oracle VirtualBox (Windows XP) and virtual machines internet connection is set to NAT. The issue is that my actual HOST PCs (Win10) ...
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59 views

Macchanger will not change MAC addres on Kali Linux

So Im now going through one tutorial about Kali Linux and I stopped when I noticed that I can not really change my wired interface MAC address. I used Macchanger for doing that and everything worked ...
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42 views

Ubuntu on Virtualbox says 20 GB used when actual size of VDI is only 8 GB

I have a Guest Ubuntu 14.04 on Windows 7 Host. I've set the VDI limit to 20GB dynamically allocated. My Ubuntu boots to say there is zero space left in the system and sure enough df shows that this is ...
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1answer
32 views

how do i automatically back up Citrix Xen server VMs to a backup server?

I want to backup the VMs on a Xen server to a backup repository automatically using a script. I have a windows and a Linux backup server so which ever one is easier to do would be great. Is there a ...
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11 views

SQL Server Management Studio 2008 UI Issues

I work in a Citrix VDN virtual machine. When I get disconnected from my session and come back in, SSMS UI has a bunch of mini windows exploded all over the screen (sorry, no better way to describe ...
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48 views

run two VMs (VMWare Wst and Virtualbox) parallel at the same time

Is it possible to have two Virtual machines, one VMWare Workstation, one Virtualbox running at the same on one host? Or does this give strange behaviour?
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78 views

Virtualization: Assign graphics card to vm and back to host when the vm exits. - Is this possible? [closed]

From what I have been told, if you want to assign a graphics card to a vm, it must not have been used by the host OS since the PC started. But recently people have reported that NVidia drivers ...
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1answer
15 views

Vagrant box not talking to mysql on Mac through 127.0.0.1

I'm running a vagrant box to host local sites. Importantly, the mysql server is running on the Mac, not the VM. When I've set the site configuration files to use localhost the site loads properly, but ...
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1answer
24 views

VirtualBox: Bridge VM to pseudo adapter

I have 4 VMs running on my host, using them as containers for stuff like my web applications. However, I currently am using NGINX as a reverse proxy - and the problems that come with that. So I ...
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1answer
56 views

Create a shared folder between Mac(Host) and Ubuntu(GUEST) on virtualbox

On my Mac I have virtualbox installed with Ubuntu. When I go into the settings of the virtual machine, under the section that allows you to create a Shared folder I select the folder I want to be ...
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2answers
129 views

Windows 10 + VirtualBox: Connect host from VM + VM to host not possible?

I'm not so familiar with virtualization. I could use it without problems on windows 7/8. Recently i want to use VirtualBox on my new Windows 10 laptop to try out a server: Kaa. They offer a sandbox ...
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12 views

Correcting the time of day clock of a restored VM

In VirtualBox, a VM's state can be saved and restored at a later point in time. This requires it to sychronise its time of the day clocks to the later time. How is this acheived, even when the OS in ...
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1answer
133 views

How can I use my printer with Windows 10?

I have Windows 10 installed as my main OS, but my printer (Canon LBP-810) is only supported by Windows 7 32bit. Is there a way to get the Win 7 driver to work in Win 10? For example, something like ...
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0answers
21 views

VirtualBox : Saving the state of a VM

How does VirtualBox save the state of a VM ? What are the HW requirements for such a feature ? I guess, saving the state also includes the values of CPU registers. How can the hypervisor not disturb ...
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1answer
32 views

The virtual machine disables the numpad

I have a Linux Mint host and a Windows 7 Pro guest OS in Vmware Player 12 with VMware additions are installed. Each time the mouse and the keyboard are "grabbed" by the virtual machine, at the moment ...
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1answer
39 views

Macvtap Bridge to VM Host

I'm trying to get a solid web/media server going in my home. It's a repurposed i7-920 machine. Its running Kubuntu 15.10, KVM, and a Windows 7 Pro vm (VT-x, Spice, QXL, MacVTap) I have Windows 7 ...
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1answer
21 views

Are fresh windows installs more anonymous/unlinkable than clones?

If you're using multiple virtual machines or VPS's with separate IP addresses to remain anonymous and unlinkable, is there any difference between doing fresh installs on each or doing a fresh install ...
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51 views

Is it possible to virtualize the clock for an experimental NTP time offset?

I have a project that wishes to force the times of a set of private NTP servers to demonstrate how NTP (and our software) reacts to various time changes and differences, network lag, etc. Normally, ...
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1answer
21 views

How to configure qemu with a raw drive, but have it not fail if the drive is missing?

I'm using Proxmox, which uses qemu under the hood. I have a vm that needs to access drives directly, so I have lines such as the following in my .conf: sata1: ...