virtual-machine

Virtual machine with support for OpenGL

蓝咒 提交于 2020-01-04 03:23:08
问题 We have an application that we want to compile, auto-build and auto-test on an virtual machine. The virtual machine "provider" has to be able to be cross-platform as we require this operation to be executed on both windows and several linux distrubtions at the same. Our application is dependent on OpenGL, and require a rather new version of OpenGL in order to work properly. We have decent experience with Oracles Virtual Box, where we are able to perform the above action with some effort,

Store `docker run` command output in BASH variable

天涯浪子 提交于 2020-01-03 09:04:06
问题 I'm having an issue storing the output of docker run -it -d -p 43211:3000 --name appname -h hostname -v $PWD/local_dir:/root/remote_dir repo/imagename in a BASH varibale. I tried `backticks`, I also tried running it like the official docs say BASH_VAR=$(docker run ...) , I even tried storing the output in a file with docker run --...>$FILE_DESCRIPTOR , but no luck storing the error situation, the situation when the name is already used by another container, like so: $ FATA[0000] Error

Where to learn about bytecode generation?

故事扮演 提交于 2020-01-03 04:36:58
问题 I'm trying to learn about generating code for a virtual machine. Where can I find out more about this, any useful books that are about this topic? This is probably a bad question for Stack Overflow, but I'm really confused and I've searched everywhere for a good resource. 回答1: Off-topic, however: read Queinnec's Lisp in Small Pieces study the source code of lua (5.2 or newer), of nekoVM, of Ocaml bytecode interpreter (file byterun/interp.c), and of parrot 来源: https://stackoverflow.com

Vagrant box could not be found error

拟墨画扇 提交于 2020-01-02 06:22:09
问题 I am trying to set up virtual machine using virtual box. I have got virtual box and vagrant installed in my windows 7 64-bit machine. I have also built an environment using puphpet. But whenever I try to install the box ubuntu1404-x64 it throws the error Bringing machine 'machine1' up with 'virtualbox' provider... ==>Machine1: Box 'puphpet/ubuntu1404-x64' could not be found. Attempting to find and install... machine1: Box Provider: virtualbox machine1: Box Version: >= 0 machine1: Box file was

Virtually contiguous vs. physically contiguous memory

情到浓时终转凉″ 提交于 2020-01-02 05:47:09
问题 Is virtually contiguous memory also always physically contiguous? If not, how is virtually continuous memory allocated and memory-mapped over physically non-contiguous RAM blocks? A detailed answer is appreciated. 回答1: Short answer: You need not care (unless you're a kernel/driver developer). It is all the same to you. Longer answer: On the contrary, virtually contiguous memory is usually not physically contiguous (only in very small amounts). Except by coincidence, or shortly after the

Difference between trap flag (TF) and monitor trap flag?

99封情书 提交于 2020-01-02 04:34:09
问题 Debugging features like GDB work by setting the TF flag of eflags register which causes an exception after every execution of instruction by the processor, letting tools like gdb control over the debugging.When we are running a virtual machine Ex in case of kvm to do the same thing you need to set a flag called the MONITOR TRAP FLAG (pg 15 of current intel software manual 3c), which will cause the virtual macine to EXIT (VMEXIT) after every instruction giving debugging abitily to the

VirtualBox error : kernel driver not installed(rc=-1908)

删除回忆录丶 提交于 2020-01-02 00:14:28
问题 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 an error : Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permissionproblem with /dev/vboxdrv. Please reinstall the kernel module by executing '/etc/init.d/vboxdrv setup' as

How to extend default partition after creating an VM instance? [closed]

这一生的挚爱 提交于 2020-01-01 17:37:48
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 5 years ago . I created a Centos x64 VM instance with a 12GB disk using the FI-WARE cloud. I can access it with not problem and I have started installing software. However, the default created partition /dev/vda1 is only 5GB and I have already filled it. I would like to know how to extend the partition to use the full disk.

Monitor free disk space on Azure VM

让人想犯罪 __ 提交于 2020-01-01 08:34:26
问题 Is there some way how to monitor free disk space from the Azure Portal? I know that there are all kinds of diagnostics for I/O, memory, network, CPU, .NET, SQL, ASP.NET, IIS, etc. But is there some way to see how much free space there's on a disk attached to the VM? All I found was this third-party solution: http://cloudmonix.com/blog/how-to-monitor-free-disk-space-on-azure-vms/ But there should be some way how to see a basic metric like disk space without needing third-party SW, right? 回答1:

After installing Homestead I get “No input file specified” in the browser. How can I access my laravel project

痴心易碎 提交于 2020-01-01 04:36:04
问题 I think I finally got homestead installed on my laptop! Now, I am trying to view my laravel project in the browser. When I open "dev.app" in the browser I get a message that say "No input file specified." which I think means that my homestead is working but the laravel project is not there/setup. I have created a folder called Projects on my local laptop (i.e. ~/Projects). Then from inside of it i executed this command laravel new dev But I still get the same error message in the browser i.e.