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

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running 16-bit code on 64-bit OS, using virtualization

I have a program called Parsonstech Hebrew Tutor, designed for Windows 98. Evidently it was compiled as a 16-bit program, although it is not DOS, and has a GUI (16-bit Windows program). I have been ...
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How to convert vmware OS X Yosemite virtual machine to virtualbox?

First I've done vmx to ova : ./ovftool --acceptAllEulas /Users/madzohan/Documents/Virtual\ Machines.localized/OS\ X\ Fuse.vmwarevm/OS\ X\ Fuse.vmx /Users/madzohan/Documents/VirtualBox\ ...
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55 views

The disk image is invalid in vmware, however perfect when used in virtualbox

We have a vmware workstation with several windows virtuals and a single linux. There was a power cut and after system has booted up i noticed that windows are working good, however linux virtual ...
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39 views

Error When Resizing Windows 8.1 VM(Host is Macbook Air running OS X 10.10(Yosemite))

I need to resize my Windows 8.1 VM(on VirtualBox) hard drive on my Macbook Air(OS X 10.10) host computer. I did some research and I typed in the following command: VBoxManage modifyhd [UUID] --resize ...
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154 views

Failed to open VirtualBox with hosts Windows 8.1 and guest Ubuntu 14 (64bit)

I'm using Virtual Box v4.3.26.r98988 with an Ubuntu 14 guest. Up until yesterday, everything worked fine, but when I try and start it now all I get is an error message: The virtual machine Ubuntu14 ...
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42 views

VirtualBox is using more processors than allotted

I have a VirtualBox Windows VM configured to use 3 out of 4 processors (see screenshot), but when my computer froze (see description below) recently, I used top and discovered that the VirtualBox ...
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38 views

Are virtual machine resources available to the host?

I know that when I dedicate HD space to the VM that it can’t be accessed by the host OS, but what about RAM and CPU cores/threads? I always thought that if I dedicate 2 cores and 8 GB of RAM to a VM ...
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25 views

Stop guest VM powering off when switching machines?

I have two machines, both windows. I'm using VM Workstation 11 in one. If I have the VM running on one machine, and I switch to the other one for ~5 minutes, it appears as though the VM powers off. ...
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24 views

shell script to generate a log file for VM Backups

we are using PHD virtual backup to trigger backups for VMs and now i want to generate a report of all VMs in a file consisting of VM Name, Date and Backup Time and mail it to my ID at particular ...
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36 views

(Virtual Machine) KVM/QEMU Distributed Resources

How do large VM hosting establishments offer Terabytes of RAM? Do they just use really large SWAP files? (over a Network FS of some type)? Or is it that they really have hosts/machines/computers ...
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26 views

Moving ZFS drives from RDM to VT-d

Last year I built a simple NAS box using a Napp-it vm on ESXi. I bought a server(ish) board, ECC RAM and 4 x 4TB drives to store the data. Since I'm new to sever building I mistook "Virtualization: ...
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89 views

Convert VMDK to LVM

I'm trying to migrate a VM from my laptop to my XEN server. First I used $ vboxmanage clonehd my-disk.vmdk -format RAW mydisk.img Copy to the server and do the following $ kvm-img my-disk.img ...
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50 views

HyperV: Best way to sharing Host Partition with all Guest Machines?

I'm trying to set up a lab environment. I have a guest with 1 2TB harddrive 16gb ram running Server 2012R2. My host partition is is split like this: C: 200GB HyperV (F): 600GB (this only contains ...
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25 views

VirtualBox Network confusion?

I'm trying to adjust my VirtualBox guest network in order for my guest O/S traffic look like its coming from my Host. Can I do this with NAT? Here's a simpler outlook on what I am trying to achieve ...
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61 views

How to make Windows 7 Virtual Machine get an IP address dynamically from another VM in the same VMware workstation 9

I am running an instance of VMware workstation 9, in which I have installed Windows Server 2012 as one VM and Windows 7 as another. I want the Windows 7 VM to get an IP address dynamically from the ...
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17 views

In Parallels, can I view the my Windows 7 VM desktop without turning off the coherence view mode?

I'm new to using Parallels and I really like using the coherence view so I can have windows applications floating anywhere in my OS X environment. But I have the need to check the windows desktop ...
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27 views

Making a host-only connected virtualbox guest a part of the hosts apache or nginx network

I have an instance of Apache running that hosts a very basic web presence. like this. This URL is resolved to the server host where it serves some simple static content. On this host, there is a ...
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46 views

No Machine: physical device forwarding

Is there anyway on No Machine to allow the server machine to have access to client devices, such as the webcam and wireless card of the viewing machine? I can only find the reverse process online. ...
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58 views

virtualbox (osx host and linux guest), only shared folders with read/write work, those with read only permissions do not

I'm using virtualbox (with osx as the host and linux, debian 7, as the guest). Shared folders with read/write permissions set to automont work fine. But if I set the same folder as shared and ...
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227 views

Increase screen resolution in VirtualBox guest without VirtualBox guest additions?

Without VirtualBox guest additions installed, the only screen resolution is 640x480: $ xrandr xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 640 x 480, ...
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196 views

unable to boot up windows 8.1 UEFI on VM in VMware workstation 11 in windows 8.1 host

I downloaded VMware Workstation 11 trial for windows 8.1 and the official windows 8.1 ISO, and made a virtual machine with UEFI firmware, a virtual SATA harddisk and virtual SCSI CD/rom drive which ...
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35 views

Network adapter resets every 5 or so minutes, for an unknown reason

I'm running an Arch Linux 64-bit VM using Oracle's VirtualBox. Everything is working fine, except my adapter keeps resetting every few minutes. I don't know what's causing this. I get a message ...
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80 views

vmWare Workstation - unable to drag and drop or copy and paste

I've setup a CentOS 7 VM on my Windows 7 laptop. In the VM settings I have both boxes checked for "Enable drag and drop" and "Enable copy and paste" and yet I'm still not able to move over even a ...
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14 views

unable to access internet from client VM which is connected to another Ubuntu VM acting as a router

I setup 3 ubuntu VMs on virtual box with the following configuration VM1(acting as router with 3 interfaces): interface1: bridged to wireless interface on host system(ubuntu 14.04) for internet ...
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48 views

Different subnets for Virtual machine & host?

If I configure my VM to be in a different subnet from the host, Is there any way to make the host reachable from the VM? I do not expect the host to handle the packets, I just want to know whether in ...
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46 views

Why won't Metasploit open a Meterpreter session?

I'm running Kali Linux in a VirtualBox VM. After starting a malicious local web server using Metasploit, I try to access it on my other PC. But, after connecting to the local IP, my browser just ...
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33 views

running a virtual machine with Cent-OS but problems occur

I have a windows 7 OS on my desktop and I have VMware Player installed. I did not use easy install when I created a VM that has Cent-OS installed. When I reboot the VM, I tend to get stuck in this ...
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13 views

Can the Host be the AD for the VMs?

I just bought a new desktop specifically for running VMs, testing and learning the microsoft stack (server, sql, SharePoint, etc). This PC is dual booted with 8.1 and Server 2012 R2. I am wondering ...
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82 views

Connect USB 3.0 to Linux Guest in VMWare Player

I need to connect a USB 3.0 external hard drive to my Ubuntu 14.0.4 guest. USB 2.0 devices work as expected, but USB 3.0 devices do not appear. I have enabled USB 3.0 in the virtual machine settings, ...
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19 views

Distributing workspaces through VM images

I want to get a dev workspace up and running on a local VM and then save its state and distribute it to others to work on the same workspace. How is this possible with VMware or virtual box?
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88 views

Virtualbox bridged networking on OVH server

I can't get that working even thou I configured it few times on other machines. Probably it's problem with something ovh-specific, or maybe I just twisted myself hard enough by now. Clean install of ...
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VM sharing over network

I have an HP ProBook 4530s laptop upgraded to 8GB of RAM. I also have a Pentium III PC with 1GB of RAM. On my HP ProBook I have VirtualBox installed with some virtual machines (Windows XP, PC-BSD and ...
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82 views

Create a virtual machine along with a dual boot (win 8.1 + ubuntu) machine

I wanted to know can i create a virtual machine on a dual boot machine? At present, I'm running on windows 8.1 along with ubuntu 14.04. Now I require a virtual machine (one more pc to be specific) ...
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23 views

Troubleshooting access to a Parallels virtual machine from another computer on the same network

I have PC1 (local IP address 192.168.1.37) running a CentOS virtual machine with a “bridge mode” Ethernet connection. TheCentOS virtual machine has an IP on the same network (192.168.1.33), Internet ...
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115 views

Assigning Static IPv6 address to Ubuntu VM in Vmware

I'm trying to assign a static ipv6 address to a ubuntu vm running on VMWare. At the moment, I've got a single network adapter, a NAT. /etc/network/interfaces is configured like this (following this ...
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58 views

Using TAP adapters for network bridging/connection?

Using virtualbox with a windows 8.1 host, I am using TAP adapters in the host to bridge networks with mixed and (to my eyes) inconsistent results. A few scenarios I have tried: ...
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33 views

Having problems accessing the host's hard drive in VMware

I recently installed VMware 10.0.0 in my Windows 7 and created a Ubuntu Gnome 64. I want to set up a shared folder with your host OS, my D:/, so I can work with the projects located there. Searching ...
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Multiple Virtual Machines with unique IPs accessible via physical network?

How do I need to configure my network adapters in order to have multiple Virtual Machines with unique IPs that are accessible outside the host PC? I currently have two virtual windows servers but I ...
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Two program on different VMs experience reply timeouts unless pinging

I've encountered a very odd issue. I've got 2 VMs, each running an identical program (a pub/sub middleware). The programs have to communicate by sending an event from and to each other. The program ...
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54 views

How can I try out different things on my computer and restore it to its previous condition easily & gracefully?

I’m starting to attend Hackathons and I'm in great need of a way to either completely restore my PC to a previous point in time, or deploy something that allows me to test out different things on my ...
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30 views

VMWare Unity Pause upon application close

I am using VMWare Workstation 11 on Windows 8.1. I have applications installed that only work on Windows 7. I followed this tutorial to create a shortcut on my host PC that will automatically launch ...
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170 views

Vagrant ssh fails — after cloning the box with vagrant package

i've set up a first Vagrant box for python dev that works very well. I can vagrant ssh in that original box without issue. Trouble start when i try to create a copy of that box (with vagrant ...
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165 views

PXE TFTP Permission Denied

I have a windows server 2003 VM and since Virtualbox supports NAT networking and has the Intel PXE firmware, id like to test it out and maybe use it between two real machines in the future. I have ...
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79 views

How can I change the language on my VM Virtual box to English

Yesterday, I downloaded and installed the Oracle VM Virtual Box on my PC but the UI language is Danish. Can anyone guide me through the process of changing the UI language to English? I have tried ...
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34 views

VMWare Player presses and holds random keys

I am running Windows 8 and VMWare Player with a bunch of VM ranging from Windows, to various flavors of Linux. The issue that I am having is that what seems like every 2 minutes, or when I switch ...
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418 views

Black screen in the beginning of installation process of Debian 7.8 on Hyper-V on Windows 8.1 Pro

I am trying to install Debian 7.8 using an ISO image "debian-7.8.0-amd64-netinst.iso" on Hyper-V. When the VM is running, I see a graphical start screen: When I choose the first command, I get ...
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186 views

How to connect to wifi using Windows 8.1 preview in a Oracle VM VirtualBox virtual pc

I've been thinking about upgrading to Windows 8.1 but wanted to test it first in a virtual pc I made using Oracle VM VirtualBox. I downloaded the Windows 8.1 preview software and so far it works well. ...
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spicy-client assertion failure after computer crash

I usually use spice-client to connect to remote VMs without any problem. Today during usual work my pc freezed (I am strong confident that this is not due to spice) and forced me to brute shutdown. ...
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82 views

The smallest Linux that can support VMWare Workstation and networking [closed]

Setting aside the hardware, this is what I need to do: install the smallest possible Linux, but it can support this three features: Connect to a network using Ethernet Firewall Support VMWare ...
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35 views

VirtualBox: create a serial port bridge to the same VM

I'd like to make a bridge between Serial Port 1 and Serial Port 2 on a VM. Practically this would route all data from VM Serial Port 1 back to VM Serial Port 2 so that an application listening on ...