Questions tagged [virtualization]
Virtualization is the process of using software to emulate an entire computer, in which "guest" operating systems can run.
2,281
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What's the recommended way to move a VirtualBox VM to another computer?
I use VirtualBox 4.1.x on my Ubuntu machine and I’ve set up several virtual machines. Since there are several ways one can move a virtual machine in VirtualBox to another computer, I was wondering ...
253
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4
answers
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Connect to the host machine from a VirtualBox guest OS?
I'd essentially like to access my host computer from the guest in VirtualBox. Is there an IP address given for my host which I can use from the guest? Are there extra steps required to set this up? I'...
218
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9
answers
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How do I enable the shared clipboard in VirtualBox?
Where is the configuration option for sharing clipboards (copy & paste) between the host OS and the guest OS?
167
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14
answers
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VT-x is not available, but is enabled in BIOS
Recently I started having an issue with VT-x on my Windows 10 running on HP EliteBook. I was using Oracle VirtualBox to run some VMs on it before and VT-x was enabled in BIOS and was working fine.
I ...
136
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3
answers
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How to select paravirtualization interface in VirtualBox?
Given a windows 8 host system (Intel Core i5) and a Linux Fedora host, I would like to determine the optimal setting for the paravirtual interface.
Options are
none
Default
Legacy
minimal
Hyper-V
...
135
votes
10
answers
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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?
134
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answers
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VirtualBox guest OS accessing local server on host OS
On my Ubuntu host I have my local webserver. I installed VirtualBox and Debian as a guest.
I would like the Debian guest to be able to hit my webserver running on my Ubuntu host (for example, I just ...
133
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4
answers
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Why can't VirtualBox or VMware run with Hyper-V enabled on Windows 10
I am running Windows 10 Pro 64 bit with Hyper-V and Intel VT-x virtualization technology enabled. When I try to run VirtualBox 64bit, Windows goes into a BSOD. When I run VMware it shows an error.
...
109
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1
answer
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Hyper-V vs Virtual Machine Platform vs Windows Hypervisor Platform settings in Programs and Features? [closed]
Windows 10 shows these three separate features that seem to be the same thing or related.
Hyper-V (note that in latest Windows 10 version this has disappeared from the "Windows Features" ...
97
votes
8
answers
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Virtual Box - not filling entire screen
I am new to VirtualBox and am trying to set up an instance of Windows 7 64.
I have the virtual machine instance running with Windows 7 now installed, but it only fills up a small portion of my screen....
96
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5
answers
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How to get VirtualBox VMs to use host's DNS?
I use VirtualBox for my VMs. My office network setup is wireless, i.e. I connect to my company's WiFi network, which has a local DNS to resolve local names (such as something.mycompany.com going to ...
85
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9
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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 doesn'...
82
votes
8
answers
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Can you run a machine emulator (Bochs) inside a virtual machine?
Is it possible to, say, run VirtualBox on Windows 7 with a Linux guest, and inside that Linux machine run Bochs?
The reason is that I'm interested in starting OS development, and I've found that all ...
62
votes
2
answers
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Hyper-V appears to runs on top of the host OS, so why is it considered a native (type-1) hypervisor?
Wikipedia says:
Hyper-V, codenamed Viridian[5] and formerly known as Windows Server Virtualization, is a native hypervisor...*
Wikipedia itself says that a native hypervisor is type-1 hypervisor -...
59
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6
answers
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Can a hypervisor like VirtualBox be used to launch a virtualized OS which is also directly bootable?
This question is rather theoretical:
Suppose I have a PC with two different OS on two different partitions: OS1 on sda1 and OS2 on sda2. Is it somehow possible to set up a program like VMWare or ...
59
votes
5
answers
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Quickest way to merge all snapshots in VirtualBox?
I have vdi with quite a number of snapshots taken from it - say, 50 or 70 snapshots.
I want to have one plain vdi with a current state. These snapshots take way too much disk space and are not needed ...
58
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6
answers
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How does Windows 7 licensing work for running the OS as Virtual Machines?
I plan on buying Windows 7 Ultimate Edition to run on an old Pentium 4. I also want to run Windows 7 virtual machines inside Windows 7. My question is two fold:
Do I need a license for each Virtual ...
54
votes
2
answers
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What are the differences between OVF-Version 0.9, 1.0 and 2.0?
I have Virtualbox 4.3 and want to export different VMs because I'm recover my computer. When I want to export a VM I can choose between OVF-Format-Version 0.9; 1.0; 2.0
But what are the differences ...
52
votes
16
answers
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VirtualBox is very slow in Windows 10
I had VirtualBox installed on Windows 8.1 and it was working correctly. I upgraded to Windows 10 and re-installed VirtualBox, but it's very slow.
System Info:
CPU : Intel Core i5
Graphic Card : ...
44
votes
1
answer
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VirtualBox: using physical partition as virtual drive [duplicate]
Background: I am using VirtualBox installed on Windows 7. From within VirtualBox I am using Xubuntu as a virtual OS. The reason I chose this approach is so that I don't have to keep turning off ...
43
votes
3
answers
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Hyper-V Virtualisation Disabled in Firmware
I'm on windows 8 and i've been trying to use hyper-v to set-up a virtual machine.
When I go into the "Turn Windows Features On or Off" the box to select Hyper-V platform, it is grayed out and when I ...
42
votes
1
answer
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Virtualized OSX can't see iPhone device
I've been running a VM with OSX for a while now while developing for iOS using an iPhone device. Everything was working fine until the update to El Capitan. Since the update, the iPhone is no longer ...
41
votes
18
answers
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Vagrant ssh fails with VirtualBox
vagrant up fails when it gets to the ssh part:
myterminal$ vagrant up
[default] VM already created. Booting if its not already running...
[default] Running any VM customizations...
[default] Clearing ...
38
votes
4
answers
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Difference between Virtual Machine and a Hypervisor
If you Google the term "hypervisor" you get endless definitions that state a hypervisor is also known as either a virtual machine monitor or a virtual machine manager, and that it is a form of ...
37
votes
2
answers
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Configure VirtualBox to connect to Internet through proxy
I'm currently trying to run Chrome OS in VirtualBox 3.0.1. Windows XP Pro is the host system.
The actual behavior is Chrome OS starts up fine, reaches the login screen.
Once so, when trying to log ...
36
votes
4
answers
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VT-x/AMD-V hardware acceleration is not available on your system
While installing an OS, I am getting an error similar to:
VT-x/AMD-V hardware acceleration is not available on your system. Certain guests (e.g. OS/2 and QNX) require this feature and will fail to ...
35
votes
6
answers
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Why is there so much hype about Virtualization these days?
Virtual machine, Virtual server, Virtual disk, etc......
It doesn't make much sense to me why someone would want to make their things "virtual" when basically that adds another layer to everything (...
35
votes
4
answers
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Virtual box is not working on windows 10
I have installed virtual box But when I tried to run it. It shows me an error as:
I have been trying everything for whole day. Like there are answers related to this question as:
VT-x is not ...
32
votes
7
answers
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Virtualbox Windows graceful shutdown of guests on host shutdown
I am trying to find a solution to gracefully shutdown any guest VMs running under VirtualBox Windows when the host computer is shut down or restarted.
It seems that the safest option would be to ...
32
votes
5
answers
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VirtualBox from an existing partition
I installed VirtualBox on my Ubuntu Hardy Heron installation, and I would like to use it to virtualize Windows for those rare occasions that I actually need to do something there.
Unfortunately, I ...
31
votes
1
answer
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How to enable hardware virtualization on a MacBook?
I need to enable hardware virtualization on my MacBook Air 2013. I want to run the Windows Phone 8 emulator, which requires hardware virtualization. I am running Windows 8 in boot camp. On my old PC, ...
29
votes
4
answers
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Unable to disable Hyper-V in Windows 10
Hi I installed Docker for Windows which enabled Hyper-V on my windows 10 machine.
Unfortunately this caused Virtual Box to not work anymore, therefore I removed Docker again, but Hyper-V is still ...
29
votes
2
answers
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Are there any pros/cons to enabling virtualization on my computer?
If I am not using any virtualization software on my computer, do I gain or lose anything by enabling (or disabling) x86 virtualization?
27
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2
answers
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How can the BIOS block virtualization?
I'm starting to work with Docker and after a few hours of trying to make it work, I found out that my BIOS was blocking it and that I needed to adjust the BIOS settings. I was told that the BIOS is ...
27
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3
answers
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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 ...
26
votes
15
answers
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Hyper-V External network switch kills my host's network performance
I have Windows 10 fully updated. I do the following:
Testing internet speed - 70 Mbps up / 70 Mpbs down
Hyper-V Manager
Virtual Switch Manager
Create Virtual Switch - External
Testing internet speed -...
26
votes
3
answers
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MAC addresses for virtual machines
As I understand it, MAC addresses are assigned to every physical device by the manufacturer. By extension, how are MAC addresses assigned to virtual machines - for example if I create a new virtual ...
25
votes
7
answers
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Dual-boot or virtual machine for Linux programmer that does some Visual Studio development?
The scenario:
I am a freelance software developer that mostly develop on Linux (Python, MySQL, MongoDB etc.)
My work computer is a Lenovo laptop w/ a i7 processor and 8GB RAM. Big HD + 128 GB SSD. ...
24
votes
11
answers
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How do I find the IP address of a virtual machine using VMware Fusion?
Can I determine the IP of a virtual machine using VMware Fusion without actually entering the operating system running on the virtual machine? I'm looking for a menu option, command line, or otherwise ...
24
votes
3
answers
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Is it possible to install Windows 10 as the host OS and as one or several guest(s)?
With a single license of Windows 10, is it possible to install the OS at the same time as:
The OS of the host machine (the non-virtual machine)
The OS of one or several guest system(s)
In such ...
24
votes
3
answers
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Convert OVA to VHD for usage in Hyper-V
I have a OVA file that I need to convert to VHD in order to use Hyper-V. Opening the .ova file in winrar gives me one .ovf file and one .vmdk file. I tested the program Microsoft Virtual Machine ...
23
votes
4
answers
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Why is Hardware Assisted Virtualization disabled by default?
Why would vendors by default set hardware assisted virtualization off? I have a Lenovo Thinkpad X201 (64bit) but it seems this is the case with other vendors too. I want to run some virtual machines ...
22
votes
1
answer
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Unable to install a VM into another VM
My host computer is running Windows 10, and my guest is Ubuntu in VirtualBox. I am trying to run a 3rd VM on the Ubuntu, but VirtualBox says:
Failed to open a session for the virtual machine ...
22
votes
3
answers
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How to start Windows XP in Safe Mode when its a VirtualBox guest in a Mac OS X host?
I've tried tapping F8 as it boots up, but I just get the normal logon screen. I'm using a Mac Mini with an Apple keyboard, do I need to do something special to get it to recognise F8?
I'm trying to ...
22
votes
4
answers
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How does virtualizing differ from emulation, in terms of structure?
Someone told me that a virtualizing program like VirtualBox does not work like an emulator does in the sense that it doesn't emulate registers and uses the actual ones for the virtualized data that ...
22
votes
2
answers
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Virtualbox, how to force a specific CPU to the guest
I have a XP guest in VirtualBox, windows 8 host. The guest shows the processor transparently same as the host (i5 2500k). However most of the installers don't recognize this processors and fail to ...
22
votes
3
answers
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Intel VT-x disappeared after upgrading to Windows 8
I've upgraded to Windows 8 some weeks ago (MSDNAA!) and today, while I was trying to run a VM, I've noticed that VT-x is disabled.
Now, Hyper-V works without problems, as I've tried emulating Win7 ...
21
votes
1
answer
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How to enable hardware virtualization on AMD Asus motherboard
I have an Asus M5A97 R2.0 motherboard, and an AMD fx-4350 processor. I know you have to go into bios to enable virtualization technology, but i can't find it anywhere. Online it says this processor ...
21
votes
2
answers
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Running virtual linux using qemu on windows
I am trying to use Qemu 1.3 for windows to run lubuntu on a USB stick with Windows 7. After downloading and unpacking Qemu on my usb stick, if I click on qemu.io.exe, I get
qemu-io.exe>
How do I ...
21
votes
4
answers
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Any Way to run Mac OSX software under Windows?
I know that you cannot run MacOSX within a virtual machine, but I am curious if there is something similar to WINE that emulates MacOSX enough to allow running some MacOSX software under Windows. ...