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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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VirtualBox: The medium can't be used as the requested device type

I'm learning how bootloaders work and how to make my own in assembly. I'm following this tutorial to make a simple bootloader. I tried the "Never ending loop boot sector" part, compiled it with NASM, by typing nasm bootloader.asm -f bin -o…
Nim
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Minikube on VM: this computer doesn't have vt-x/amd-v enabled

I'm trying to run minikube inside virtualbox, and got this error: this computer doesn't have vt-x/amd-v enabled Even i have this setting enabled on my virtual machine. I tried aslo drivers KVM, KVM2 - they also not starting due to "virtualisation…
user453575457
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Postgres failing to start on Windows Server 2016 in Azure

I am having issues starting Postgres 9.6.6 on Windows Server 2016 on an Azure VM. When I try to start Postgres it generates a log file with the following: LOG: could not bind IPv6 socket: Permission denied HINT: Is another postmaster already…
DevOverflow
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VM won't bring up using homestead up

I have no issue running vm's using homestead up but last week I just updated to the latest Windows 10 update and now when I run the command it gives me There was an error while executing `VBoxManage`, a CLI used by Vagrant for controlling…
claudios
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Running a vm in ubuntu using shadow paging?

In ubuntu, if you are running another ubuntu inside Virt-manger - what will be the effects of disabling nested paging and force using shadow paging on the no. of VM exits. Will the counts of exits increase or decrease.
sjso
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Device not found on Mac Os Sierra VM Xcode

I am trying to develop iOS apps on windows and have installed mac os on Virtual Box. Xcode is running great but I can't seem to get my device noticed on it... I have mounted the usb device from the menu on virtual box but nothing is working. Please…
Wp3Dev
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Stop and deallocate an Azure VM within the guest OS

The VM info: Basic A1 Serie VM with Ubuntu 16 on it How to shutdown (or Stop) and de-allocate the VM in Azure without having to go to the azure portal? Bearing in mind in Azure if you execute shutdown -h 0; it will stop the VM but won't deallocate…
AK_
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Change default installation path docker ubuntu

I have an Ubuntu Azure VM whith a data disk mount in the /datadrive. As the documentation of Azure said, I must to install applications in that directory. Now, I want to install docker with apt-get command, but it install docker in the default…
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How do i know my CPU supports Docker?

What are now Docker cpu requirements for running in Linux, say, Ubuntu and Windows? Is VT-x/AMD-v is enough or VT-d/AMD-Vi is required too? Does it require MMU virtualization (Intel's Extended Page Tables (EPT) and Unrestricted Mode, and AMD's…
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How to ping docker container from VM on the same host?

I have a docker container and a virtual machine(VM) on the same host(OpenSUSE). the docker has the IP like 172.18.0.2 and the host IP is something like 3.204.XX.XX and VM IP is also something like 3.204.xx.xx, I am able to ping the docker from the…
Lakshmikanth B
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Accessing Azure Virtual machine behind proxy / firewwall

I have created a Windows 2016 data center on Microsoft Azure cloud. I also downloaded its RDP file. However, when I am trying to access it from my Organization I get below error. (of course, organization uses proxy/firewall). When I access it from…
Aditya Bokade
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Running tests on VM does not work unless window is open

We are attempting to do our testing remotely, so we set up some Virtual Machines to run our GUI tests and to free up our local machines. What we were hoping for was to have the tests run just like they would on a physical machine, however they seem…
Tree55Topz
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Running Jupyter notebook in docker image on Google Cloud

I'm running an Ubuntu 16.04 VM on Google Compute Engine. I've created a static IP address and my firewall settings allow tcp:80-8888. I started the Jupyter server within the docker image with jupyter notebook --ip=0.0.0.0…
Zin Yosrim
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single server installation of Dynamics CRM

i want to create a single server VM installation of MS Dynamics CRM. Can anyone point me to a tutorial or walkthrough on this? thanks
femi
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Moving Android Virtual Device (AVD) from one computer to another

I am trying to clone my AVD to another computer with no much luck. I want all the application installed on it will be saved together with the data. I tried to follow some instructions I found on the web but they don't work for me. Simply copying…
Amit Moran
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