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 to take advantage of USB3.0 speed for VHD of Hyper-V VM

i created a Hyper-V VM which has it's vhd on a external usb3.0 disk. But the vhd works way too slow. Normally i see around 98Mb/s read/write speed from the hdd if i use it from my main OS. But it is ...
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26 views

Windows XP as VM on an old computer

I have this old machine (a Powermate ML5 PC) with these specs: OS Name: Microsoft Windows XP Professional Version: 5.1.2600 Service Pack 3 Build 2600 OS Manufacturer: Microsoft Corporation System ...
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1answer
12 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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2answers
3k views

Is there a way to share the guest OS Internet connection with the host OS with in VMware?

I have an USB Wi-Fi board without drivers for Mac OS X 10.8 (Mountain Lion). Sometimes I have to connect to the Internet using the external board and need to pass the Ubuntu Internet connection ...
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9 views

Call web application on Windows Server running inside VM from Host

I have been given a laptop. Inside this laptop I have a VirtualBox VM running Windows Server 2008. On this Virtual Server I have several sites and databases set up. I created this image to make the ...
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8 views

Setting up a Microsoft Cluster in a virtual enviroument

I currently have three physical hosts (Host1, Host2, and Host3) that are running Win2K8 R2 and each using installed roles: File Services and Hyper-V and installed features: Failover Clustering). ...
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10 views

For testing purposes how can SMB be used between two VMs?

For research purposes I want to connect two VMs together through SMB. How can this be done? I've tried using netem but can't seem to get it to work with SMB. So for example I just want to time how ...
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14 views

Mac Host access -> Putty Connection to unix

I'm trying to access in my Mac Host Web Browser to a putty SSH connection to a Linux Server that I have made and that required a tunnel. I can ping from my Mac Host to the Windows Virtual Machine but ...
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2answers
465 views

Bridged Networking doesn't work. Host Windows 7, Guest Ubuntu 14.04. Tried everything

it's quite popular problem and I've seen many solutions, but none of them worked for me. I've created virtual machine with Ubuntu 14.04 and haven't changed anything in Ubuntu configuration. With NAT I ...
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9 views

Hyper-V - how to make network cards appear to Guest OS' as “the same”

Few days ago I transfered physical machine to virtual, so Windows detected a bunch of new hardware. After that I installed integration services, which made it again detect some more new hardware. I ...
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1answer
13 views

How to save changes in a BackTrack virtual machine?

Is there any way to save changes in a BackTrack virtual machine using VirtualBox? I've tried every way, but on every next boot the settings (changes like changing the background wallpaper or such) ...
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1answer
6k 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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1answer
23 views

Non-persistence in Windows 7

I have a spare Windows 7 license, and would like to set up a small VM for use as a Jenkins slave. As things can go wrong on build systems, and I'd like to avoid cruft building up in the system, I'd ...
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47 views

The big log file.What this?

I have a lot of kern.log file. And size of 10GB+ but, in file text all to AMD-Vi : Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0014 address=0x0000000000001000 flags=0x0000] Note : ...
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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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0answers
15 views

Oracle Virtual Box: No option for 64bit vm's

I've installed virtual box on my pc and I want to use 64 bit operating systems inside my vm. Unfortunatly I can only create 32 bit vms (the 64 option is missing completly). I know it should be there ...
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2answers
20 views

How to find out a VMs IP address by using VMWare Workstation? Not ipconfig on VM

I am running a VM on VMWare Workstation. Host is Win8.1 VM is debian. How do I find out the IP address of the VM without using the VM? Means: not entering password into debian and executing ifconfig. ...
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2 views

Virtualbox, Warpdrivepercentage: Is the same possible with VMWare?

Virtualbox has a function to slow down a VM. Called "WarpDrivePercentage". Question: Is the same pssible with VMWare Workstation?
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1answer
56 views

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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20 views

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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24 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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11 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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35 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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23 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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110 views

Export from VmWare to .ovf using “ovftool”

I want to export my "VmWare"-VM (Windows Vista) to an .ovf file using the tool "ovftool". I tried to export it using the following syntax: ovftool C:\Program Files (x86)\VMware\VMware ...
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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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2answers
17 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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2answers
10k views

Make a clone of VirtualBox Machine that doesn't cause Windows Re-Activation after installing Windows

Most guides for installing Windows on VirtualBox to act as a template for quick Windows jobs tell you to take a few steps to prepare the Virtual Machine before installing Windows (the best guide I ...
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1answer
25 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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33k views

How does VirtualBox's memory usage work?

I've been running several VM's with VirtualBox, and the memory usage reported from various perspectives, and I'm having trouble figuring how much memory my VMs actually use. Here is an example: I ...
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1answer
13 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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2answers
12k views

64-bit Windows guest in VirtualBox impossible without VT-x support?

I have successfully installed Windows Vista 32-bit in a VM with VirtualBox. Now I'm trying to do the same with Windows Vista 64-bit and it just isn't working. I have created the VM but it seems that ...
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9answers
80k views

How to move VirtualBox files?

By default VirtualBox stores all data in a directory below the home directory. I know how to change it but how can I change the location of existing images (without editing VirtualBox.xml manually)? ...
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4answers
1k 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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196 views

Cannot start VirtualBox NAT Network

I am trying to start a NAT Network using VirtualBox on Ubuntu 14.04. Both Ubuntu and VirtualBox are freshly installed. VirtualBox v4.3.10_Ubuntu r93012 installed from the Ubuntu repositories. When ...
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1answer
930 views

How can i backup a ESXi VM to an attached USB storage

I have Esx installed on IBM 3450 server. I want to make backups of my VM on attached USB device in server. My network speed is very less so i can't backup and copy through network. Is it possible ...
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13 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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4k 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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11 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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1answer
25 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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19 views

VirtualBox VMs turn off randomly [closed]

Yesterday after I deleted my old AD user account and replaced it with a local administrator account all 70 (35 of which are currently running) of my VirtualBox VMs disappeared from the VM list in the ...
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1answer
19 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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20 views

Hyper-v error: Virtual Machine could not be started because the hypervisor is not running

Sometimes ago, I used some virtual machines like VMWare and VirtualBox that worked well on my machine. Recently I wanted to use Hyper-V but I couldn't. I googled the issue but I didn't receive any ...
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3answers
4k views

Mac OS X Server 10.6.6 “disables” CPU in VMware Fusion

I installed Mac OS X Server 10.6.0 in VMWare Fusion the other night and it worked perfectly, until I ran Software Update. I upgraded to 10.6.6 through the combo updater, and now when I start the VM it ...
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15 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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4answers
3k views

Ubuntu 11.04 VM shows a black screen in VMware Player

I have a Ubuntu Server 11.04 64 bit VM running on VMware Player 3.1.4 that only shows a black screen. No matter what I try, the screen remains black. The VM has worked the first time. When I reset ...
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2answers
1k views

RDP to Microsoft Azure's virtual machines via proxy server

I have created virtual machines in Microsoft Azure and I can't connect them from my work office, probably because it must go through the proxy server. From my Google-ing I understand that it's ...
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2answers
28 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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1answer
71 views

Wildcard domain for virtual box in sbs network

I have a virtual Linux box, running on my Windows 7 computer, which is part of a MS SBS network. Since a while, I can't change my hosts file anymore, perhaps because of some internet security ...
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15 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 ...