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 two virtual servers cannot change network configration of second server

I am learning networking. The problem is that i am running two virtual machine of linux operating system on virtual machine whose server addresses are 192.168.1.100 and 192.168.1.200 respectively. I ...
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1answer
1k views

Two VirtualBox VMs running in parallel assigned same IP

I had one VM in my VirtualBox and wanted to use it as a template/image so I cloned it. Then I launched both the original and the clone simultaneously (to simulate a server cluster for something I was ...
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1answer
144 views

RDP can't reconnect after connection drops

We have a number of development VMs running which we typically access through RDP. After a few hours the connection will drop leaving us unable to reconnect giving the following message: This ...
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2answers
2k views

Windows 7 VirtualBox image won't boot and I can't boot in safe mode

I am trying to load a Virtualbox VM using a VHD file that was provided to me. The VHD contains an image for our dev environment on a Windows 7 OS. The wrinkle is that when I try to start up the VM, ...
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1answer
29 views

Problem with Network Type to be used for Java RMI

I was installing CentOS Linux distro in VMware Workstation 10 when I stuck across the issue as to use which Networking Option to get my work done. Though I don't know whether it is fit for this site, ...
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21 views

win 7 not running smoothly on win8 host

Recently i've set up a windows 7 vm on my notebook (windows 8 installed). Here's the notebook specs: i7-4500u 8gb ram 1tb hd 2gb dedicated ram vga And here's the vm specs: 100gb of disk space ...
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1answer
86 views

Zerofree never ends. Is it doing anything?

I have been trying to use zerofree to reduce the size of my VM. It worked fine for one filesystem, but the other was mounted on / so it wouldn't let me. Then I figured I could use the 'recovery ...
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2answers
20 views

VirtualBox VMs in the same network, not in the same as host

I have operating systems running on my host machine in VirtualBox. I want these to be able to access the internet and see each other. I don't wan't to use the bridge option because I want them to be ...
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2answers
15k views

Mac OS X Guest Virtual Box in Windows Host Full Screen

Is there a way to make the Mac OS X guest OS adapt the resolution of the host OS given that there's no guest additions yet as of the moment?
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6answers
11k views

Limiting CPU speed in a virtual machine?

Does anyone know of a way to limit the CPU speed in a virtual machine? Or if there is even a virtualization software that allows you to do this? I am trying to find the minimum requirements for a ...
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2answers
10k views

Use physical harddisk in Virtual Box

Using Virtual Box, how can I install an OS to a secondary, physical disk, and boot it in both (at separate times) Virtual Box, and as a typical secondary OS install?
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1answer
23 views

Virtualbox NAT mode

I'm under the impression that I should be able to use NAT (not "NAT network" which doesn't appear to let me even hit OK) to communicate with my VM from my host. Even after forwarding ports, I could ...
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18 views

Can't access vagrant forwarded port from host

I can't get access to vagrant forwarded port from host (windows 8.1). The vagrant box is "hashicorp/precise64". I have forwarded port by config.vm.network "forwarded_port", guest: 8080, host: 8080 in ...
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0answers
22 views

Can't connect to VirtualBox Ubuntu guest from Ubuntu host

I have an Ubuntu 12.04 virtual machine running inside VirtualBox and I recently switched it to a new host running Ubuntu 14.04. After the switch the guest can connect to the Internet, but no other ...
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0answers
53 views

What's the diffrence between snapshot-create and snapshot-create-as in virsh kvm?

On my virtualization system there are some VMs. One of them was aimed for testing some services on it. So in this case I need to have the first state of that VM. I searched for a solution found the ...
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19 views

Unable to turn on Virtual Machine Windows Virtual Server 2005 R2

I have a standard virtual machine that is running windows 7 32-bit, on a a physical server running Windows Server 2008 64-bit. The virtual machine is running on Windows Virtual Server 2005. When I go ...
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1answer
19 views

How to virtualize an existing OS2 operating system?

I was looking into virtualizing OS2. I know it's a little tricky to virtualize OS2 in the first place, but I was wondering If it were possible to virtualize an existing OS2? I was going to use Virtual ...
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4answers
30k views

Why Virtual Box won't give me option to create 64 bits guests?

My host is x64 bits Windows 8.1. I downloaded the latest Virtual Box (4.3) and I'm trying to create a VM with a 64 bits Ubuntu OS (ubuntu-12.04.3-desktop-amd64). When I go to New VM wizard, it ...
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0answers
11 views

Compatibility of strace/ptrace with virtualized environments

I have realized that strace(http://sourceforge.net/projects/strace/) sometimes (not always, the behavior is non-deterministic) freezes when run in virtualized environments. For example, I have tried ...
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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
2k views

Accessing a Virtual Machine over Hamachi VPN

I've got two virtualized machines running Ubuntu on a Windows 7 Host machine - we're utilizing VirtualBox to handle this. The Host machine also acts as a Gateway for our VPN solution - Hamachi. The ...
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2answers
4k 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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1answer
7 views

Route request from 1VM to another

I have a linux ubuntu vm and windows xp vm running parallel. How would I go about routing a request from the xp vm to the linux vm? Host PC is setup to route test.com to 192.168.33.10 which is the ...
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16 views

port forwarding in windows 7 to vmware

I have a windows 7 in a network with ip 10.1.1.74 and I have vmware with centos which it's ip is 192.168.160.129 and has configured as NAT with my local windows 7. I have set up a apache httpd server ...
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5answers
815 views

Should I run Windows Virtual Machines on a Windows or Linux host?

I have currently have a PC with 16GB of RAM. I will be running multiple virtual machines using VirtualBox. Would I get the best performance from running the VMs on a Linux host, or a Windows host? ...
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48 views

Unable to install Ubuntu 14.04 on VMware Fusion on OS X Mavericks with 7.15 GB of Free Space

Have a MacBook Pro, running OS X Mavericks, with 7.15 GB of free disk space. Downloaded VMware Fusion 6.03 and ubuntu-14.04-desktop-amd64.iso... Tried installing Ubuntu using the following steps: ...
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2answers
1k views

VirtualBox and SSD's TRIM command support

I am aware of the huge number of posts on the internet saying that this would not work and why and I really spent days looking for the solutions months ago but I've found yesterday some tips how to ...
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3answers
859 views

Running linux kernel 0.01 in a virtual machine

I'm just trying to know if is there is a way to run the first version of linux in a virtual machine. Since I am very new to this, my aim is to learn something basic on how the first version of linux ...
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1answer
44k views

How do I install and use Windows Virtual PC in Windows 8?

I really liked the integrated Virtual Machine that Windows had built-in with Windows 7, known as the Windows Virtual PC. I'm looking to install that again. I'd like to be able to install multiple ...
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4answers
190 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 ...
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2answers
20 views

Can I load my local Windows install into a Linux virtual machine?

I have Linux and Windows both installed on dual boot. How can I load my existing Windows installation into a VMWare Workstation while I'm booted into Linux?
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2answers
49 views

Memory mapping of a 32-bit virtual machine on a 64-bit host

My host is a 64-bit ubuntu operating system and I want to setup a windows 7 virtual machine. I suspect that using a 32-bit windows 7 vm does not have any benefits regarding the RAM and disk space ...
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2answers
109 views

How to virtualize my physical home file server?

I have a home file server, currently has around 5TB of data, nothing fancy just old hardware (low budget) having a pentium dual core with 8GB ram. It runs snapraid so I can use dissimilar hard drives ...
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1answer
17 views

Develop code locally, run through virtual machine?

I would like to develop on my Windows machine and have the code run and update on a CentOS virtual machine. I could probably figure out some way to do this, but I would rather use any pre-existing ...
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0answers
9 views

Wifi connectivity on a virtual machine while it is not working on the parent machine

I am having wifi connectivity issues on my Windows 8 laptop. I am thinking to install windows 7 as a VM using virtualbox. Will the wifi connection work in the VM (win 7) while it has connection issues ...
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3answers
4k views

Is it possible to add an existing Azure VM to an Azure Virtual Network?

Didn't think this was directly related to programming, so thought Superuser would be better than Stack Overflow.... Is it possible to add an existing Azure VM to an Azure Virtual Network if you ...
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0answers
9 views

How can I modify the default bootloader for XCP guests?

I want to automatically set the hostnames of my XCP-created centos VMs during build. The xe-edit-bootloader only works when I specify an already-existing VM. But I want to set my VMs as DHCP - so I ...
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1answer
2k views

Why is guest OS greyed out in vmware web client?

I want to open the console for the guest OS on a VM in Vsphere using Firefox on OSX. Everything is working properly on the machine. I am able to console using the desktop client program in windows -- ...
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1answer
20 views

QEMU outside gateway

I've created two instances of CentOS6.5 (KVM) using Virtual Manager and I'm able to ping google.com, yahoo.com,etc... However the ip addresses for the instances are 192.168.0.* and the machine that ...
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30 views

Too many VMDK files on my windows VM

I have a windows vm with 60 GB disk running on VMWare Workstation. I see the total size of the folder containing is close to 115 GB. I had some 7 snapshots and though snapshots are the reason. Delete ...
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2answers
2k views

Is there any way to customize vmware's “Easy Install” of ubuntu?

VMWare has a feature when creating new VMs called Easy Install, that will show you a small wizard asking you the minimum things needed and then will install the entire OS without you needing to do ...
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1answer
17 views

Vista VM cannot connect to printer shared from Win 7 VM - Error code 0x00000102

I'm running two OS's using Oracle VM Virtual Machine. One has Windows 7 Pro x64, the other Windows Vista Business x86. I have to try and connect a printer installed via USB and shared inside of the ...
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0answers
17 views

Pinging host from virtual machine

I have Windows 7 running as the host OS.I just installed my copy of Virtual Box and run Kali Linux as the virtual OS.I disconnected my host from the wireless connection at home,and it got connected to ...
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0answers
22 views

how to create multiple virtual NIC which each of them can take IP from DHCP when only single physical NIC is available

There are several virtual machine tools that can create multiple NIC for their guest OS. thought almost all of them let the virtual NIC of the guest OS to connect the physical NIC, I haven't seen any ...
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1answer
38 views

Back-up Image to Virtual Machine

Prior to updating my development machine from Windows 7 Pro to Windows 8.1 I did a full Microsoft back-up as well as a full Norton 15 ghost recovery point. After a few weeks of working I discovered ...
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1answer
5k views

Run Windows XP (32-bit) on Windows 7 (64-bit) on VirtualBox

I think I have tried this before and failed. I can't find anything on line which confirms or denies this. Maybe I just did it wrong. Anyone out there try this with success? Or can anyone confirm ...
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3answers
15k views

Move “XP Mode” from Windows Virtual PC to VirtualBox?

I installed "XP Mode" in Windows 7 (which uses Windows Virtual PC to host XP). I have now discovered that VirtualBox, which I have installed on the same Windows 7 machine, refuses to run at the same ...
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1answer
103 views

Restoring VMware Fusion virtual machine from Time Machine Mac OSX

I was having problems with my keyboard and the genius bar people at the Apple store told me to make a backup of my computer and re-install the operating system. I did so and the computer is running ...
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7answers
23k views

How to recover a VMware virtual machine

I was running Ubuntu in VMware Player. It froze up when I was using it, so I killed it with the Task Manager. The reason it froze was because I ran out of disk space. So after killing the process I ...
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2answers
2k 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 ...