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

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VPN remote access to lan

I am rather new to this. I have done some it/cyber defense competitions in the past and have some knowledge. I am trying to set up a group of about 5-6 xenserver boxes. I want to use xencenter to ...
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24 views

What does it mean when a virtual machine can only run on x86 hardware?

I am learning about different kinds of virtualization. As I learn about this concept I am often times presented with documentation that says the virtualization software "requires x86 processors". I am ...
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Bottom Level Virtualization

I use virtual servers quite a lot, a lot of providers such as Google, Amazon and DigitalOcean offer an interface where you can select the OS you want to deploy, pretty neat. My question being, is ...
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Can i install Hyper-v on a Virtual Machine with Windows Server 2008 or 2012?

I need to install Hyper-V on a Virtual Machine to have different OS to try my programs.My Virtual Machine is Windows Server 2008 R2 but if i need to i could change it to 2012.Could you explane it ...
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31 views

Error opening Ubuntu 12.04 LTS on VirtualBox version 4.3.16

I was working on my Ubuntu/Virtual Machine, when my laptop battery has discharged. After that moment, when I try to open Ubunutu on Virtual Machine I get the following error: There is no virtual ...
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10 views

Finding maximum number of VMs that we can run on a machine

Goal Goal is to find out total number of VMs that we can run on my machine which are generating given amount of load. Problem I want to generate some load inside the VM, say 25% of alloted cpu, 10 ...
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1answer
25 views

Trying to create a Big Endian environment using solaris 10 SPARC VM in Windows8 Host

I need a Big Endian system for testing. I am planning to create a Solaris Virtual Machine by installing Oracle Solaris 10 ...
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1answer
52 views

firefox 38 runs slow in virtualbox guest windows

I am making a new windows virtualbox image today, and just installed firefox from https://www.mozilla.org I have used firefox for years, and it has always being very fast and as responsive as my cell ...
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41 views

Error when starting VirtualBox (Unable to load R3 module)

I'm aware this question has already been asked, but the answer points to a website that is currently down and is relevant to a VirtualBox version that's old and irrelevant to my version/problem. I'm ...
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1answer
19 views

No Internet connection on VM

I can't seem to connect to the internet on my VM which is running Windows 8. I followed most of the instructions that I've found on Google or YouTube but it didn't seem to help. I can have a wired or ...
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2answers
25 views

Is it safe to install two different VirtualBox Guest Additions at the same time?

I was wondering if it is safe to install both Windows and Linux versions of VirtualBox Guest Additions? I searched around in google but couldn't find an answer. I need to make a vbox image that ...
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6 views

VMware - Debian 7 Wheezy System Manufacturer and System Model

For a Linux VMware Virtual Machine (vsphere), I'd like to change the "System Manufacturer" and "Model". I do not want to show the original biologic. Instead I want you to write the name of the bios ...
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14 views

Create an Azure Linux VM with a large os disk?

Does anyone know how to resize an OS disk on an Azure Ubuntu VM? Currently it's 29.3GB and I'd like to make it larger or create a new VM from a VHD with larger disk? Please know that I do not, at ...
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25 views

Self-created VHD image file won't boot in VirtualBox

I've got an old small form factor PC (x86). It boots from a CF card. I'd like to develop software for it but I don't want to use it for debugging since I might brick it. This is why I've tried ...
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23 views

Connections between virtual machines - VMware

I have two virtual machines , one with server ubuntu, one with 7 windows , the two machines are in the same class of IP , windows - 10.10.1.3 ubuntu server - 10.10.1.2 the two machines is drip so ...
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11 views

How to determine if a clone of a VM is a linked clone or full clone?

I have two VMs . One is clone of another . How do I find if the given VM is a full clone or a linked clone of that VM as I want to delete the VM from which clone was created to manage disk space and ...
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10 views

Sharing existing ubuntu folder on host guest with Virtualbox

I am familiar with sharing directory between Ubuntu guest machine to host machine. But now I need to shared an existing ubuntu folder with the guest machine. I don't understand if and how it can be ...
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22 views

Connect Internet to Multiple HyperV VM's

I have 7 VM in HyperV 1 CentOS 4 Ubuntu 2 Win8.1 I want to connect all these VM's to internet. Internet is working on 1 VM only. DHCP is enabled in Virtual Switch advance options. Any help ...
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Can't Access Internet in Kali Linux

I have the very latest version of Kali Linux installed in a Virtual Box VM. My problem is I'm connected to the Internet in my Windows host but cannot access the Internet in Kali (accessing Internet ...
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2answers
28 views

vmware work station 10 - how to make it faster?

What are general strategies to make vmware workstation faster? I am running Fedora 10 inside it and recently it has become very slow. I have allocated around 1.4 GB ram for virtual machine. My ...
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10 views

VirtualBox VM slow when not focused

I have a CentOS 6.6 VM set up using VirtualBox on my mac, it's command line only, no X. It generally works really well but I've noticed that it is sometimes very slow when I SSH (using terminal) or ...
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34 views

Virtual Box Bridged network failed to get IP (DHCP) No DHCPOFFERS received

I am newbie in networking and virtual box configuration, I have spent several days dealing with this problem. My goal is to get Bridged network working. When I try to UP interface in my Virtual Box ...
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7 views

Virt-manager guest hangs, when host system sleeps and then wakes-up

I run virtual machine manager - v0.9.5 on ubuntu 14.04 (host) and there is Centos 7 up and running as a guest. The host machine goes to sleep (when i close the laptop lid) and then wakes up. On ...
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42 views

What is causing this Ubuntu boot failure?

Got this screen, it doesn't react. I cannot move further at all. I've searched extensively online, but didn't didn't find anything helpful. I thought it's a connectivity issue between my screen ...
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24 views

Can we use Ceph or Gluster FS to avoid IO bottleneck to start many VMs?

AIM: I want to start 50s of VM on s single server or on a set of PCs. Scenerio: I tried to boot 15 VM on a single server with enough computing power(processor) and RAM but disk is a bottleneck in ...
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19 views

Can't find one virtual machine whose network IPV4 is DHCP enabled

I had a virtual machine which I connect remotely from my windows machine. Virtual machines TCP/IPV4 property was assigned one static IP address by the network administrator. I have changed that from ...
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18 views

Get iso file from virtual machine

I have VMWare inside which I am running fedora. I want to make a copy of this virtual machine .iso file - so that I can run this image on another computer. e.g. Basically I want to run instance of ...
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12 views

vmware changes usb data structure

I have vmware on my Windows 7 and I connected my usb device to my virtual machine (win 7) but some functions of my usb device don't work correctly on vm so I analyzed my usb output data using Putty ...
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35 views

Interacting with VirtualBox using phpVirtualBox

I have VirtualBox up and running on my Linux machine. I've installed Apache and PHP, and have http://sourceforge.net/projects/phpvirtualbox/ up and running. I created a new virtual machine using ...
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8 views

How to mount a Virtual USB drive to a Virtual Machine?

I have created a Virtual USB drive using IMDISK referring to "Is there software to fully emulate a USB hard drive?". Is it possible to connect it in a Virtual Machine? I have tried but there is no ...
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1answer
48 views

RemoteFX from Windows 8.1 to Windows 10

Is it possible to use RemoteFX if client is Windows 8.1 Pro and virtual machine is Windows 10 Generation 1? I don't see RemoteFX options in Hyper-V Manager or RDC? How I can enable RemoteFX? Can I ...
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23 views

Can't Log in to azure VM running Linux from OS X

I´ve been trying to log in to a VM running Ubuntu in Azure from OS X through SSH verification. But when I try to connect to the virtual machine I get a Permission denied (publickey) error. To create ...
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15 views

DNS problems with a static IP configuration in a VM

I am using Parallels Desktop 10.2 for Mac on OS X Yosemite. I am trying to configure my my client (Ubuntu 14.04) to host a website that is available to the host via a particular domain name. In the ...
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46 views

Simplest way to setup my own remote private git server

First of all, I've read all the git-server-setup documents on the internet, but still, there is one thing missing -- I want to setup a simple GIT server in (Ubuntu) Virtual Machine for myself, not for ...
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1answer
23 views

VirtualBox and non-system disk fragmented to 41%?

I've installed VirtualBox reccently and have been playing around with installing different systems and working with them. I've created five different virutal machines: Windows 10 Technical Preview ...
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40 views

Windows 7 keeps turning off Aero theme, how to disable such annoyance [duplicate]

I run my daily work load in Windows 7 inside a VMware Workstation 11.1 VM, with 3 monitors(VM using all 3 monitors in full screen mode). The graphics performance inside VM is not so fast, and quite ...
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1answer
34 views

Gparted cannot resize extended or LVM partiton

I created a VM using VirtualBox and realized it was small. So, i managed (after some time) to create a new, bigger HD. Live GParted CD image (v.022): Now I need to integrate the unallocated ...
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36 views

Is there anyway to install a software inside a VM?

In my system I have 100s of virtual machines and I want to install a package uniformly inside those VMs, same version etc. I may not have the passwords for those VMs, becuase different users may ...
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1answer
28 views

Can't mount VMware tools cdrom in VMware Player

I know this should be easy, but I'm having a hell of a time figuring out where the vmware tools cdrom is (for instance it's not /dev/cdrom) and so I can't figure out how to mount it. I'm on Kali ...
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16 views

Oracle VirtualBox aborted when the host system lock

I have installed oracle virtual box 4.3.28 in a Windows 7 Enterprise SP1 OS in office PC.Thinking of that I will create as a SQL database server so that others can connected to that sql server and do ...
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10 views

Apache Spark Building Memory Issue for JVM Initialization

I am currently building Spark on my linux Red Hat 5 VM just for experiment. However, when running the mvn script or sbt script inside the spark 1.3 version source code (downloaded from the github), it ...
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37 views

VM: Mac OSX Host, Windows Guest: Use VT-d so that the fast GPU is available for the VM?

Vt-d is enabled in recent MacBook Pros, but I did not find any information on actual gpu sharing. Is it possible to set up a MacBook Pro with two GPUs (Intel, nVidia or AMD) so that I can use the ...
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1answer
46 views

Multiple virtual network adapters with their own MAC address and external IP address from the DHCP in Windows

I have been searching for a long time on this forum, and although there are many questions about the topic, I wasn't able to get a concrete solution to the problem. I want to have multiple IP ...
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21 views

How to delete Vmware Hard Disks, instead of removing them?

i have a question concerning Vmware Workstation 11. When i want to remove a virtual Hard Disk of a VM, it doesn't delete the big .vmdk files, it just removes it from the Hardware list of the VM. I ...
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131 views

Vmware/Virtualbox Yosemite OSX Not booting stuck 50% Halfway

I've spent 2 days and scoured the depths of google in a attempt to get past the boot screen of Mac OS X Yosemite Niresh. 10.10. In a virtual machine It's constantly stuck at 50% after extremely slow ...
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How do I run Debian via VirtualBox using the physical partitions (rawdisk)?

Disclaimer: My question is different to and not answered in any of these similar questions: VirtualBox: using physical partition as virtual drive Running Mac OS X Physical Partition Inside ...
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14 views

extracting info from virtualbox .sav file?

I have a .sav file of VirtualBox which I want to restore. But the problem is I only have this file (without any other info of the disk file and RAM size and so on). I tried to duplicate one of my ...
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12 views

My virtual machine is not connecting to the virtual network on hyper-v

I have created a virtual network on my host machine, verified that it is working properly, and added it as a network adapter for my virtual machine. But when I lunch the virtual machine, all it says ...
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6 views

Max percentage of resources that should be given to VM?

I'm running a local VM on my laptop using VMWare Workstation 11. My laptop is the host, as well as the computer I'm using to access the VM. My laptop - Windows 8.1 - has 8GB RAM and an Intel Core ...
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10 views

VPN PPTP Connection Shared With--Or From Within--VirtualBox VM

Using a Windows 7 host and a PPTP connection I've been unable to get the VPN working with a VM running a RedHat Linux derivative. Sharing the host's PPTP connection with VirtualBox's host-only network ...