virtualization

问题 I am new with Docker and I am having trouble writing my Dockerfile . The thing is that I created a user named jonas523 which I want to execute a shell command. So I put it in this Dockerfile and when I go inside my fresh container, I observe that the command was not used with the new user I created. I think I didn't understand the USER instruction provided by Docker : USER jonas523 RUN \ echo "JAVA_HOME=/usr/java/jdk1.7.0_45/bin" >> /home/jonas523/.bash_profile \ && echo "ANT_HOME=/opt/apache

问题 I have installed Android Studio in Windows 2012 Server machine on Google Cloud. But, I cannot run Emulator on it. It shows the below error. "HAXM doesn't support nested virtual machines" 回答1: Consider that nested virtualisation is not enabled out of the box for Compute Engine instances. Therefore you need to enable it manually, however it is not available yet for Windows instances as you can check in the documentation page: Nested virtualization does not currently support Windows instances.

问题 I want to know about Virtualization in detail. But start from basics, like what is virtualization, with real world examples and scenarios. When ever I search, i got Virtualization technologies, but I want to learn and in fact know what exactly is virtualization, its types and all... Please help me in getting practical details of term "Virtualization" 回答1: Virtualization is a big topic, but very roughly speaking there are three main levels of virtualization: OS virtualization with a type 1

问题 How can we Visualize data in an ObservableCollection or List which is set as ItemSource of ItemsControl? We are using ItemsControl within a ScrollViewer to make a custom collections control, due to some technical reasons(Design Constraints), we can not use ListView, or GridView controls which supports VirtualizingStackPanel and Data Virtualization through ISupportIncremental, so we must use ItemsControl within a ScrollViewer. So how can our ScrollViewer control notify the bound observable

问题 I have a List box with different user controls in WP7 app. How should I apply virtualization with Virtualization Mode as "recycling". Because when I applied the results are not smooth. There seem to be a jerk while scrolling. In Android, for the same scenario the User Controls will be tagged their recycling is handled preoperly since they are perfectly distinguished and here any such option is not given. Any idea how to handle this scenario? I tagged silverlight and c# becuase WP7 has both

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I have the following scenario. I am running a Ubuntu 14 LTS in a Virtualbox on a Windows 10 system. Within this ubuntu I would like to install a Virtualbox where I need to run a custom docker ISO image. Now, the problem seems to be the fact that the Virtualbox within the Ubuntu doesn't have VT-X/AMD-v enabled.

问题 I have VirtualBox 5.1 installed on Windows 7. There I have a guest OS Debian (64-bit) set up. For this guest system I have both " Enable VT-x/AMD-V " and " Enable Nested Paging " boxes checked in the " System - Accelaration " menu and the " Paravirtualization Interface " is set to " KVM ". Now I am trying to deploy a CentOS (guest) system (following these instructions to install an Apache Metron dev environment) inside the Debian guest OS, using VirtualBox 5.0 as a provider to Vagrant . I run

问题 I'v searched about this but i don't seem to get fair answer. lets say i wan't to create a vm that has a vCPU, and that vCPU must have 10 cores but i only have 2 computers with 5 cores of physical CPU for each. is it possible to create one vCPU by relaying on these two physical CPUs to perform like regular one physical CPU? Update 1: lets say i'm using virtualBox, and the term vCPU is referring to virtual cpu, and it's a well known term. Update 2: i'm asking this because i'm doing a little

问题 I pulled a MySQL docker(latest) & after running it I am trying to commit my container after adding some Data & New Schema's & tables in this mysql docker instance. For Reference i am following this link -> http://www.servermom.org/pull-docker-images-run-docker-containers/3225/ But even after trying with multiple variations i am not achieving what i intend to. So what i am doing is after adding new tables and schema to my container i am committing & pushing to Docker hub as mentioned in the

问题 I'm currently running a virtual Ubuntu Server on my mac via Parallels. It is really quite alright, but working in the virtual environment can be a little slow. I am looking to just run the server, but do the actual development on the mac side. I really just want the server to run silently in the background whilst all dev work is handled on the mac. Has anyone set up something like this and would be able to point me to a fairly concise tutorial? Some of the challenges (for me) are : accessing