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

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Why does my VMware Player Windows guest create all files with executable permissions on Ubuntu host?

I am running Win8.1 in VMware Player 7.0 with a shared folder with my host Ubuntu 14.04 system. Whenever I create or save a file in Windows, it gets the permissions -rwxr-xr-x in the Linux file ...
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1answer
59 views

Why does MS Word save .docx and .pdf files with executable permissions when run through VMware Player on Ubuntu?

I am running Ubuntu 14.04 and MS Word 2013 through VMware Player 7.0. I share files between my guest and host by mounting my home as a network folder in VMPlayer. My problem is that every time I save ...
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36 views

Boot issue with Windows Server 2003 R2 VM that was exported from Hyper-V on Server 2008 R2 and imported into Windows Server 2012

I am migrating some Hyper-V based Virtual Machiness from their current server which is running Windows Server 2008 R2 over to another box that is running Windows Server 2012. I exported all of the ...
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1answer
74 views

I can't access my server on VM (VirtualBox) in centOS 7

I do install VirtualBox on Windows 7, and create a virtual machine, which install centOS 7. Then in centOS7 perform the installation of CollabNet Subversion Edge, following this information as a guide ...
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15 views

How to access HDMI out port on Virtual Box Virtual machine?

I have installed Android OS as a virtual Box VM on windows 7. I was wondering if we can access HDMI out on virtual box Virtual machine. Is there any way to achieve that.I have researched a lot on ...
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1answer
48 views

Easy way to save and restore Virtual Network Editor settings in VMware Workstation

I am using VMware Workstation 10 and have set up my Virtual Network Editor to use multiple NICs. Due to some reason (automatic updates I guess) the VNE loses those settings every now and then. Is ...
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28 views

How can I add ethernet port in CentOS VM running in Parallels?

I have Parallels installed on OS X 10.10, with a VM of CentOS 6.6 installed. Upon installation, eth0 was automatically configured (as a wired connection), and allows me to connect to my wireless ...
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1answer
31 views

How to fix network Connectivity of guest VM moved from one machine to another?

Upgrading my PC, I am moving everything I had in the old one to the new one, including my VMWare Workstation VMs. In my older PC, I had VMWare Workstation 6.5 installed. In my new PC, I have VMWare ...
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19 views

Openvz vswap memory usage (Wrong memory on Virtualmin/Webmin )

I am running OpenVZ on my dedicated server Here is output from host(dedicated server) total used free shared buffers cached Mem: 15604 15228 ...
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1answer
19 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 ...
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31 views

How can I emulate Windows Server 2008 R2 with QEMU? / Cannot virtualize Win2K8 R2 using QEMU on Windows Host

I have used precompiled QEMU 2.2.0 (64-bit version) to emulate a PC running Windows Server 2008 R2. The Host OS is Windows 8.1 Enterprise 64-bit, and my CPU doesn't support Intel VT-x so I can't use ...
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1answer
182 views

Guest with static IP - slow internet connection, random pings

I have Ubuntu 14.04 virtual machine with static ip and bridged network. Internet connection on host is wireless and most of the time works well, but sometimes it is a little bit slower too, but not ...
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42 views

VM image inaccessible in Virtual Box

I have Virtual Box installed on base OS RHEL 5.5. I am using Windows 7 as a VM image on Virtual Box. While transferring a folder of 600MB on Windows I got a Virtual Box error saying Memory limit ...
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1answer
23 views

How does a virtual machine get the space

I have just created a win7 virtual machine on a win8 host. I assigned the client machine more than 30 GB of disk space. Does that mean I have 30 GB less to use on my host? I am asking because it looks ...
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26 views

Error in installing Mirantis Openstack on windows 8.1

I am trying to install Mirantis Openstack on my windows machine(8.1). The entire process i have done till now is: Install oracle virtualbox with extension pack Install cygwin Install procps, ...
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1answer
76 views

Run commands on an Ubuntu guest in VirtualBox VM from Windows host

I am working on some coding, and I have an idea that should work but I have no clue how to make it work. I am using Wolfram Mathematica on my Windows host machine to run some code, but I have to ...
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93 views

Oracle VirtualBox Guest additions with Windows 10 technical preview [duplicate]

I've decided to try out the Windows 10 technical preview on a VM. I am using VirtualBox 4.3.20 and my host machine is running Windows 7. I installed Win10 successfully but I am having trouble ...
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1answer
11 views

Linux Watch Memory Command

I am using watch -n 5 free -m command via terminal to watch the memory fluctuate as I run virtual box with a guest that is limited to 4GB of RAM(it allocates 4GB on start of virtual guest). Under ...
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5 views

how resources control transfers between host operating system and guest operating system?

can someone explain how resources(CPU, Memory, IO) are managed and controlled by host operating system and guest operating system ?
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17 views

SMB response, STATUS_INSUFF_SERVER_RESOURCES

I have a Windows 7 vm running in VMWare workstation, it has 4 cores and 4 GBs of RAM assigned. Currently 3 clients connect to this windows 7 vm to access a shared folder. I noticed when the clients ...
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21 views

Boot physical partition as a VM

I have a physical Ubuntu partition on my HDD that it would occasionally like to boot inside Windows as a VM for file transfer between Windows and Ubuntu and non-intensive tasks inside Ubuntu. How can ...
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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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2answers
182 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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1answer
27 views

Virtual Machine on Windows 8.1 without Hyper-V

Is there a way I can install the latest version of Ubuntu on my Windows 8.1 machine without Hyper-V? I do not have Windows 8.1 Pro in order to have Hyper-V. All guides I see on the subject do it via ...
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1answer
21 views

Syncing virtual machines - dynamically allocated or fixed allocation VHD?

When you run a virtual machine that you want to periodically sync, is it generally faster to use a dynamically allocated VHD or a fixed allocation VHD? I'm sure this depends on a lot of factors, ...
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30 views

Can't boot with USB 2.0 enabled [Virtual box]

I need to use USB 2.0 on Virtual box for Windows 8.0, my host is Windows 7. I Installed the virtual box extension pack so I have the option to to this. However, when I enable USB 2.0 I cannot start ...
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1answer
314 views

run windows 10 on oracle vm virtual box, error your pc need to restart

I'm using windows 7 64 bits, CPU: dual core T4500 does NOT have virtualization, 3 Go of Ram. I want try Windows 10 I have download the Iso, Install Oracle VM and set up it, when I run the vm, I see ...
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47 views

Machine is rebooted due to bugcheck “The bugcheck was: 0x000000d1 (0x0021ee81, 0xd0000002, 0x00000000, 0xf7727548). ”&Machine is VM with 2003 OS

Machine is rebooted due to bugcheck. The bugcheck was: 0x000000d1 (0x0021ee81, 0xd0000002, 0x00000000, 0xf7727548). Machine is VM with 2003 OS. Event Type: Information Event Source: Save Dump ...
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1answer
17 views

How can I start my virtualbox instance with the same state?

Is it possible to save a state of a vm in virtualbox, and from then always restart this vm by restoring the state ? My problem, is that the state is deleted after restoration, and I can't restore it ...
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1answer
45 views

Cannot run VirtualBox after crash, acceleration not available

I know that has a lot of topic like this, I've tried them a lot as well but my problem is not solved. My laptop has Core i3 and I used to use VBox just a few days before. When RAM got up to 99% my ...
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2answers
61 views

AntiVirus for OSX running parallels

I'm using OS X 10.10.1 on my Mac. I use Parallels Desktop 10 and VMware Fusion 7.1. I do use windows a lot on Parallels and Fusion (Several Virtual machines). Windows 8.1,7 and XP. I've installed ...
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57 views

How can I boot Windows 95 on a VM directly from the hardware?

I have an Asus Eee PC X101ch with an Intel Atom N2600. I need to run Windows 95 on it, but it doesn't work natively. Only through a VM. Is it somehow posible to boot to a virutal machine? Like: ...
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2answers
40 views

Free Windows Virtual Machine Images?

I came across this tool called vagrant up and in the documentation it points to a list of freely available virtual machine images which includes windows. Does that mean that we can run windows for ...
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1answer
49 views

Relationship between OpenStack and Xen

Xen is an open source virtualization platform that allows you to install a bare metal hypervisor on a machine, which turns it into a host for other guest VMs. I can't really understand what ...
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9 views

Xen Virtualization Types by Example

Please note: I first tried searching for an SE site where virtualization-centric questions were directly on topic. I found Virtualization, Cloud and Grid Computing, but to my surprise and dismay, see ...
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9 views

Calling guest scripts in Oracle VirtualBox

I'm using Oracle VirtualBox. I want to run a script from the host computer to execute the following steps: Start the virtual machine Execute a script on the virtual machine Close the virtual machine ...
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1answer
28 views

Configuring ESXi server to produce same performance results

I have an ESXi 5.5.0 server with a single VM. When I run some benchmark on the VM there are 6% differences between times of different runs on the VM (each run around 250 seconds). When I've run such ...
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12 views

Domain Admin Can't access VM after configuring RemoteApp

I configured a test VM (As a local admin) for remoteapp connections. Now that we've done our testing, we've found that we're unable to connect to the machine with our typical access. Even domain ...
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94 views

Virtualbox and Vagrant network configuration Windows 8.1

I'm trying to access a website on a vagrant box (Laravel Homestead) through port 8000 on my host but it always gives the ERR_CONNECTION_REFUSED error on Chrome and IE. I have tried multiple setups, ...
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71 views

Why Ubuntu VM on Parallels has a blurry look on Macbook Pro Retina?

I've installed Ubuntu in a Macbook Pro Retina. It looks terrible, though, even after adjusting the resolution to 2880x1800: Why this is happening? I have already enabled Retina resolution on ...
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1answer
71 views

VirtualBox USB Support, USB Drive is NOT working, detected or recognized

I'm using latest stable version of Oracle VM VirtualBox with VirtualBox Oracle VM VirtualBox Extension Pack on CentOS Linux release 7.0.1406 (Core) (Linux 3.10.0). My Virtual Machine's Operating ...
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2answers
52 views

Execute command on linux virtual machine (or server) from windows commandline

I usually use software on a windows machine, but now need to call one commandline executable that I only have a Linux version of. I installed a linux virtual machine, but I would like to be able to ...
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45 views

After entering UserName/Password FTP server is not responding?

I have set up a Azure VM with Windows Server 2012 R2. I have also setup IIS 8.5 FTP server there. When I access the site using localhost url in the same server, I will get UserName/Password prompt and ...
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0answers
26 views

Wordpress + Virtualbox using virtual host

I'm trying to figure out how to test a development Wordpress site using Virtualbox and so far have not seen an answer to my specific problem. My setup: Using MAMP with a virtual host on OSX Virtual ...
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1answer
31 views

Copying an image from the internet and pasting it results in a CID attachment style image

I am having an issue where if I copy and paste an image from the internet on a virtual machine, and paste it to an email on a virtual machine, it is adding it as a CID attachment, instead of a linked ...
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1answer
18 views

Connecting a QR reader to Linux

I am trying to connect a QR Code reader via USB to my linux (Debian 5) running in a VM. Here are the tailored outputs of various commands: dmesg $ dmesg [ 1141.368166] usb 1-2.1: new full speed USB ...
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VM image copied as bridge adapter creating IP conflict while starting new VM from copied image

I copied one centos6.0 VM image whose network was bridged connected to host. When I copied that image in another host & started on VM-Player 5. original VM is also running on VM Player 5.0 too. ...
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1answer
65 views

How can I start a 256 color game on a Virtual Machine with Win XP?

(Note: I am from Germany and have my system on german language, so if i my translations of the Buttons and stuff i get on screen seem strange to you pls let me know) I wanted to play a old pc game of ...
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30 views

Why does my keyboard light up when I start Windows?

I've got Windows 8.1 installed on my MacBook Pro Late 2013 Retina 15" via bootcamp and every time I choose Windows my keyboard lights up. It doesn't occur when I choose OS X. How do I disable it?
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388 views

virtualbox windows 10 guest stuck at low resolution on ubuntu host

I am running Ubuntu 14.04 as a host and Windows 10 as a guest in Virtual Box. I used Windows 8.1 as the operating system type when I set up the box. Windows 10 runs fine. I was able to install Guest ...