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Questions tagged [virtual-machine]

A virtual-machine is software emulating complete computer hardware. There are various applications that supply this functionality. **Note**: For questions on the Java VM, use the specific tag [jvm], and for the Android virtual machine, use the tag [dalvik]. For other questions on implementation details of other kinds of VMs like interpreters, automata or Turing-machines, use the tag [vm-implementation]. ONLY QUESTIONS ABOUT PROGRAMMING ARE ON-TOPIC.

If you need non-programming help setting up a virtual machine, ask those questions on Server Fault or Super User.

A virtual-machine is software emulating complete computer hardware. There are various applications that supply this functionality.

The term virtual-machine can be used for a single file containing the software which emulates all the hardware. Virtual-machine software use various hardware and software tricks to speed up the running software.

Programs run on a real machine do not need to be changed to be run on a virtual machine. A program running on a virtual machine works exactly the same as if it were running on its own hardware.

Some virtual machine software include:

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What is the difference between Full, Para and Hardware assisted virtualization?

I am going through the topic of virtualization and i am totally sucked up understanding the basic concept, Wikipedia does provide some relevant information, but it is not good enough for me to understand the basic idea. The concept will be of 2 to 3…
mfs
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Cannot start docker after installation on Windows

I am a new to Docker. After the installation of Docker Toolbox (OS: Windows 10) I run Docker Quickstart Terminal and in the console I see this: Running pre-create checks... Error wirh pre-create check: "Hyper-V is installed. VirtualBox won't boot a…
Denis Starkov
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Oracle virtual box inaccessible

I am using Oracle Virtual Box version 4.2.16 r86992. Everything was fine until yesterday shutdown. Today, it shows inaccessible and throws this error: Runtime error opening C:\Users\xxxxxx\VirtualBox VMs\vBoxxxxXubuntu_Beta\vBoxxxxXubuntu_Beta.vbox…
Vishal Gupta
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How to copy virtual devices downloaded by Genymotion to another machine?

I have installed Genymotion for Android in one machine (windows PC) and downloaded a Nexus virtual device. How can I copy the virtual device to another development machine? or do I have to download again for each dev machine? Genymotion is storing…
J.Krishna
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How do I destroy a VM when I deleted the .vagrant file?

I deleted the directory that contained the .vagrant file. When I up a new VM it's complaining about ports being in use. So how do I destroy a VM without having it's .vagrant file?
Pickels
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How do I delete virtual interface in Linux?

ip link shows this: [root@0-25-90-68-79-4a log]# ip link 1: lo: mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: mtu 1500 qdisc…
vikas
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Can I run Docker in a Virtual Machine?

I tried to run Docker on a virtual machine. Host : MacBook VM : Parallels Windows 7 And error occurs: Is it possible?
shkim
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Difference between Docker and OpenVZ

I am newbie to the world of virtualization. Can some one explain to me the differences between OpenVZ and Docker? What could be good for the future? Pros and cons?
forum.test17
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Vagrant corrupted index file C:\Users\USERNAME\.vagrant.d/data/machine-index/index

My Windows 8.1 just crashed. Now I have some files on my dist that are corrupted. This includes my vagrant machine index (Not shure if the naming is right but I know that it is this file -> C:\Users\USERNAME.vagrant.d/data/machine-index/index). So…
Thomas Venturini
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How to sync time on host wake-up within VirtualBox?

I am running an Ubuntu 12.04-based box inside of Vagrant using VirtualBox. So far, everything is fine - except for one thing: Let's assume that the VM is running. Then, the host goes to standby-mode. After waking it up again, the VM is still…
Golo Roden
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How to set mongod.conf bind_ip with multiple ip address

I am a newbie for setting up the server environment and mongoDB. This may sounds something really simple, however, I really need your help on it. I am trying to connect to my virtual machine which runs the mongodb instance from the local machine,…
yeelan
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VirtualBox error : kernel driver not installed(rc=-1908)

I tried to set up an virtual machine on Ubuntu 12.10.I installed Oracle Vm VirtualBox Manager. Then, i followed the steps and i choose .iso file from settings>storage.Then clicked live cd/dvd option.Then OK,when i clicked to start button i get such…
user1760668
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What are the specific differences between an "emulator" and a "virtual machine"?

I see that they are different things but I really can't tell why. Some people say: "emulators are for games; virtual machines are for operating systems" I don't agree with this answers because there are emulators for platforms other than videogame…
A.J.
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How to enable copy paste from between host machine and virtual machine in vmware, virtual machine is ubuntu

I am trying to copy and paste from my pc to the vm but i cant. I also enable copy and paste but i still can't copy and paste from my pc to the vm. My pc runs windows 8.1 my vm has fedora.
Christos Michael
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Why I cannot connect to Kafka from outside?

I am running kafka on ec2 instance. So amazon ec2 instance has two ips one is internal ip and second one is for external use. I created producer from local machine, but it redirect to internal ip and give me connection unsuccessful error. Can…
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