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Openstack Error Qemu-img: Could not open ‘/var/lib/libvirt/images/’ Permission Denied

Have you ever receive error message like below while working with Openstack and KVM?. If so, a fix is given here. Command: env LC_ALL=C LANG=C qemu-img info /var/lib/libvirt/images/asterisk.qcow2Exit code: 1Stdout: u”Stderr: u”qemu-img: Could not open ‘/var/lib/libvirt/images/asterisk.qcow2’: Could not open ‘/var/lib/libvirt/images/asterisk.qcow2’: Permission deniedn” INFO nova.compute.resource_tracker [req-7f9e4964-52c0-4204-ae00-b74fb83acb9c – – – – -] …

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How To Clone and Use KVM Virtual Machine in Linux

The most important and most used feature in world of Virtualization is the ability to clone a VM,take snapshot of the current state of a VM, Live migrate a VM, e.t.c.Lately i have been playing with KVM and Openstack Cloud computing platform.At times you have to clone a VM to …

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Permission Denied While Starting instance in Openstack

As I was building Openstack Lab, I happen to encounter error message as it was seen on a log file from.tail -f /var/log/nova/nova-compute.log [[email protected] ~(keystone)]# tail -f /var/log/nova/nova-compute.log 2016-03-21 22:05:34.283 1228 ERROR oslo_messaging.rpc.dispatcher     rv = meth(*args, **kwargs) 2016-03-21 22:05:34.283 1228 ERROR oslo_messaging.rpc.dispatcher   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1059, in createWithFlags 2016-03-21 22:05:34.283 …

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Deploy OpenContrail on KVM with Ansible

On part one of OpenContrail Deployment, we looked at Installing OpenContrail with Ansible on CentOS 7 and Kubernetes. The problem with this is that the deployment was done on a physical server, where you can’t easily scale if you have fewer resources. Another disadvantage of the same is if you screw …

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How to run Minikube on KVM

Minikube is a tool developed to help you run a single cluster of Kubernetes on your local machine. Minikube works by starting a single node kubernetes cluster locally for purposes of development and testing. It packages and configures a Linux VM, Docker and all Kubernetes components, optimized for local development. Similar: …

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5 Helpful Tips For Cloud Business Success

Did you realize that public cloud platforms generate nearly $44 billion in revenue each year? There is no denying just how popular cloud technology has become in the world of small business. Source Pixabay With the right cloud-based solutions, your business will be able to grow and expand with ease. …

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How To Install KVM on RHEL 8 / CentOS 8 Linux

How to install KVM on RHEL 8 / CentOS 8?. This guide will cover the full installation of KVM hypervisor and its management tools on  RHEL 8 / CentOS 8. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux Systems running on x86 hardware with virtualization extensions (Intel …

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Recurrent Neural Networks in Python Udemy Free Download

Calculus Linear algebra Python, Numpy, Matplotlib Write a neural network in Theano Understand backpropagation Probability (conditional and joint distributions) Write a neural network in Tensorflow Description Like the course I just released on Hidden Markov Models, Recurrent Neural Networks are all about learning sequences – but whereas Markov Models are limited by the …

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freecoursesite.com | 502: Bad gateway

Bad gateway Dallas Cloudflare Working freecoursesite.com Host Error What happened? The web server reported a bad gateway error. What can I do? Please try again in a few minutes. Cloudflare Ray ID: 5231c19b4b80d28a • Your IP: 96.125.171.78 • Performance & security by Cloudflare

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Unsupervised Deep Learning in Python Udemy Free Download

Knowledge of calculus and linear algebra Python coding skills Some experience with Numpy, Theano, and Tensorflow Know how gradient descent is used to train machine learning models Install Python, Numpy, and Theano Some probability and statistics knowledge Code a feedforward neural network in Theano or Tensorflow Description This course is …

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Artificial Intelligence Masterclass Udemy Free Download

High school mathematics A bit of coding experience Description Today, we are bringing you the king of our AI courses…: The Artificial Intelligence MASTERCLASS Are you keen on Artificial Intelligence? Do want to learn to build the most powerful AI model developed so far and even play against it? Sounds …

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Apache Spark 2 with Scala

Some prior programming or scripting experience is required. A crash course in Scala is included, but you need to know the fundamentals of programming in order to pick it up. You will need a desktop PC and an Internet connection. The course is created with Windows in mind, but users …

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Natural Language Processing (NLP) in Python Udemy Free Download

Install Python, it’s free! You should be at least somewhat comfortable writing Python code Install numerical libraries for Python such as Numpy, Scipy, Scikit-learn, Matplotlib, and BeautifulSoup Take my free Numpy prerequisites course (it’s FREE, no excuses!) to learn about Numpy, Matplotlib, Pandas, and Scikit-Learn, as well as Machine Learning …

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Advanced Computer Vision Udemy Free Download

Know how to build, train, and use a CNN using some library (preferably in Python) Understand basic theoretical concepts behind convolution and neural networks Decent Python coding skills, preferably in data science and the Numpy Stack Description This is one of the most exciting courses I’ve done and it really …

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Advanced Stock Trading Course + Strategies Udemy Free Download

Basic Stock Market or Trading Knowledge This is a follow up course to the course “Foundation Stock Trading Course” Description This is the advanced course that our Full-Time Traders at the Proprietary Trading Firm Montreal Trading Group have taken in order to start their trading career. This course includes comprehensive advanced material that is required to …

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