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

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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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1answer
10 views

Creating VMs on Windows 8.1

I am trying to setup a lab on my personal machine. I currently run Win 8.1 Pro. I have gone into Programs & Features to turn on this feature. When I expand the HyperV selection. The HyperV ...
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1answer
13 views

Unable to get kickstart file from http webserver?

I'm trying to get a vm up using a kickstart file. However, whenever the virtual machine initalize, it says it is unable to located the kickstart file from the location provided. Code to build vm: ...
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1answer
3 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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0answers
7 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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2answers
4k views

vmware player won't run on CentOS due to missing /dev/vmmon, what could be the problem?

So I've tried installing vmware player 3.1.4 and 3.1.3 and both times had the same problem, when I try to load a VM I get the error "Could not open /dev/vmmon". When I ls /dev/ I can see there is no ...
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1answer
11 views

how to use isc-dhcp-server in place of router dhcp

i have a virtual Debian installed on my VMware running on win 7 64 bit , i am using a bridged connection for my virtual machine , i installed isc-dhcp-server and changed the /etc/dhcp/dhcpd.config ...
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0answers
12 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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0answers
12 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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0answers
23 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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0answers
6 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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1answer
483 views

Oracle VM VirtualBox;Shared folder does not exist on the host?

I had installed Oracle VM VirtualBox version 4.2.10 r84104 on Windows 7.Then I create a Windows seven operating system(form an iso image file) as a guest on it with a shred folder.But when I try to ...
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2answers
2k views

vmdk file too large but guest os is small

I'm facing a strange issue with my virtual machine. I have an rhel 6.1 guest os running on VMware workstation (9.0.2 build-1031769) hosted on Windows 7 Enterprise 64 bit. The size of the vmdk file is ...
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1answer
5k views

Can't get Gopro studio to work in a windows 7 guest on a Ubuntu 14.04 host

I am running windows 7 guest on a ubuntu 14.04 host and am having problems trying to get the latest version of gopro studio to run. It seems to install fine, but everytime I try execute it, it ...
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0answers
17 views

Which Free Virtual Pc Software allows you to connect to wifi within your virtual desktop? [on hold]

This is a follow up question to: How to connect to wifi using Windows 8.1 preview in a Oracle VM VirtualBox virtual pc If VirtualBox doesn't allow you to connect to wifi in your virtual pc. Which ...
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1answer
55 views

Virtualbox vm goes into aborted state whenever Macbook goes to sleep

I'm running Yosemtie OSX (10.10.2) and Virtualbox 4.3.22. Whenever my macbook goes to sleep, my vm goes into "aborted" state, and does not recover (i.e. has to be manually restarted/booted). Looking ...
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1answer
25 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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2answers
5k views

XP VM not detecting USB keyboard or mouse from Windows 7 host

I've been using a Windows XP Pro VM (32-bit, SP3) for months on my work PC (Windows 7 64-bit) with no problems, with a PS/2 keyboard and a standard optical USB mouse. Today I copied this VM onto my ...
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2answers
7k views

Ubuntu 12.04 VM on Windows 8 Hyper-V - No Network Connectivity

I have been attempting to connect my Ubuntu 12.04 Virtual Machine to the internet. I have been searching and found some information but have not been successful so far. I have also tried Linux Mint ...
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2answers
3k views

Start specific virtual machine in VMware in Unity mode on host startup

When I boot up the host computer I'd like the VM to boot up too and enter unity mode. Both OS's are Windows 7. How can I do this?
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4answers
1k views

Possible to have multiple virtual monitors for a VMware guest in windowed mode?

Using VMware Workstation 10 on Windows, I've read "Use Multiple Monitors for One Virtual Machine" and managed to make it work as described when running the machine in Full Screen mode. What I would ...
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2answers
9k views

x64 Hardware Virtualisation support not detected on Windows 8.1

I get the following error (and yes I know this has been reported many times, but please read further): VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit guest will fail to ...
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0answers
8 views

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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2answers
3k views

Share guest OS internet connection with host OS with VMware

I have an usb wifi board without drivers for Mac OS X ML. Sometimes I have to connect to internet using the external board and need to pass the Ubuntu internet connection running on VMware Fusion to ...
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1answer
26 views

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

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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1answer
16 views

why in Linux VM like vmware and XenServer, physical id > the number of cores in /proc/cpuinfo

This was only observed in Linux virtual machines. In /proc/cpuinfo, the physical id could be very large, exceeding the number of cpus. For below example, 4 core systems but the physical id is 13. ...
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0answers
12 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 ...
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9 views

Allocating server CPU cores to virtual box guests for heavy compute, light i/o load

Please share your recommendations for allocating CPU cores to guests on big iron. I am asking basically this question 6 years later: Is there an optimal setting for the number of CPU cores exposed ...
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3answers
755 views

CentOS 7 ESXi/VMware Hang on Boot

I installed CentoOS 7.0 1406 on a VMWare ESXi 5.5 hypervisor. I installed "Sever with GUI" and selected KDE. However on boot I get the following messages in under a second, before the process tops ...
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0answers
19 views

Where are Xen guest config files stored?

I'm new to Xen stuff. I have a XenServer 6.5 running, with XenCenter and a Debian installed as a PV VM. I'm trying to setup the extra security now so I don't have to learn about it after I've been ...
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1answer
33 views

Why VMware Virtual Ethernet Adapter for VMnet1 not shown in Network Connection?

VMware Virtual Ethernet Adapter for VMnet1, VMnet8 and Bluetooth do not show up in Network Connection's. Only the Wireless Network Adapter is shown! What could be the reason for this? Thank you for ...
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1answer
34 views

Running device firmware on a computer

I was wondering how I would go about running device firmware in a virtual machine on Windows 7 or some other way on windows 7. I am specifically thinking of running the Broadband-Hamnet firmware for ...
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6 views

Ubuntu VirtualBox Virtual Machine won’t power on after power failure

I have an Ubuntu virtual machine hosted on a Windows OS. I lost power while the virtual machine was on, and the host OS crashed. After rebooting the host, I could not power on the Ubuntu virtual ...
0
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1answer
34 views

x86 live image on a x64 processor

I have a live image of ubuntu, and I will be using it for programming. It came with a book, and the book mentions that it has to be used on a x86 based-processor. I have an AMD64 processor, so my ...
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9 views

2nd monitor absent in VirtualBox

I'm using VirtualBox but cannot get a second monitor for my guest. Why not? As you can see in the screenshot, the Win7 guest actually thinks it has two monitors, but there is no window for the second ...
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80 views

VMware workstation 11 host-only networking with Kali Linux (Guest) and Windows 8.1 (Host)

I've been trying to set-up a host-only network between my Virtual machine Linux (Guest) and Windows 8.1 (Host) to share Internet connection of Linux VM with Windows 8.1 host. the Linux distribution ...
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3answers
4k views

Is it possible to set up a bare-metal hypervisor on my laptop?

Say I had a Core i7 Laptop with 16GB of RAM and a 750gb drive. Is there a mechanism where I can partition the HD into a Linux, Windows, OS X, Shared Data, Hypervisor setup where I boot a small ...
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2answers
5k views

How to connect to internet from Ubuntu which is installed in a virtual machine using VMWare Workstation?

I have installed Ubuntu 9.04 on a virtual machine using VMWare Workstation. I have Windows 7 as my host OS. I want to connect to internet from Ubuntu. Can anyone please gives steps for connecting to ...
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0answers
47 views

VirtualBox errors out saying it needs more free disk space when space is clearly available

At my work environment we use VirtualBox for testing. It is set up as Windows host and RHEL 6 as client. Now during testing sometimes the error message popping up which says: You need to free ...
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1answer
25 views

VMware Player cannot start a suspended VM from an SMB shared drive, says “Failed to lock the file”

I have a VMware Player VM located in a remote shared folder that resides on a Linux server. On the server side I have set up my file access permissions to the user ID used to open the shared folder, ...
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2answers
6k views

Virtualbox shared folders - mounting failed

I've installed Ubuntu 10.04 as a Virtualbox VM. I'd like to make my entire C drive an always-enabled shared folder under ~ (/home/). I've seen this tutorial but I'm unsure of the differences between ...
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0answers
31 views

Poor MSSQL server performance on virtual machine after system upgrade

I'm managing middle sized company database. Recently we have massive system upgrade and switched to virtual machine environment. After deployment, we are having performance issues, Apparently MS SQL ...
0
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1answer
17 views

Compare two instances of Windows based on their state (Hashing)

I don't know how to better ask this but let me give an example. Suppose that I install a Windows 8 and do some updates, install some software, and copy some files. Can I now get a hash code for the ...
2
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5answers
2k views

VirtualBox/Ubuntu mouse disappears

I just created an Ubuntu 14.04 VM in VirtualBox (the host is Windows 7) and have noticed a strange "bug" occurring with the mouse. And yes I installed guest additions. About 50% of the time, when I ...
5
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1answer
8k views

Hyper-V Clipboard and Integration Services in Ubuntu

I have Ubuntu 14.04 running in Windows Hyper-V. I am experiencing a problem with the Clipboard (copy from host to Virtual Machine), it is not working correctly (It was not working with Ubuntu 12.04 ...
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0answers
15 views

virt-install fails to start in centos 6.6

I am trying to host virtual KVM machines on my server. Specs: CentOS release 6.6 (Final) processor : 11 vendor_id : GenuineIntel cpu family : 6 model : 45 model name : ...
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2answers
3k views

How can I access a VMware client that's located on a remote host?

I use VMware Fusion at work to test my websites in different versions of IE by running multiple copies of Windows on my Macbook Air. At home, I use VMware Workstation to do the same thing. My desktop ...
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3answers
2k views

Virtualbox can NOT mount an USB drive

I have on my laptop a windows system (windows 8), in which I have a Virtualbox installation(4.2.12, most recent). I have a virtual machine setup with the Virtualbox, and the OS is Ubuntu (12.0 LTS). I ...
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0answers
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Hibernate/Resume Windows7 Between Native and VM host?

Is it possible and safe to do the following? boot Windows 7 natively hibernate boot alternative OS ( say Linux ) load a preconfigured VM using the Windows 7 native disk start the VM Host OS, which ...
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4answers
3k views

Cannot create external switch on Hyper-V

I am getting the following error when creating an external switch on Hyper-V: I am running Windows 8.1 x64. My switch settings are as follows: Event viewer gives me the following errors in ...