Objective of this article to share how to solve the problem of VirtualBox can not run when Hyper-V is installed in windows machines. This problem might occur when we try to run VirtualBox where already docker was installed. Because docker internally enables Hyper-V configuration in windows which will be the problem to run VirtualBox.
There are total 3 steps which we must follow to enable/disable Hyper-V in Windows 10.
Search for Apps & Features in Windows Search option
Search for Turn Windows features on or off
Select/deselect the Hyper-V option from the popup opened to enable/disable accordingly.
For more detailed explanation continue with further article.
Search for Apps & Features in Windows Search option: Look at the below image for more easiness to find Apps & Features option.
Search for Turn Windows features on or off
Select/Deselect the Hyper-V option from the popup opened: Deselect Hyper-V option and click on OK button to disable Hyper-V in your system. Since Hyper-V is OS level configuration, it will ask to restart the computer to make changes are affected.
We should restart the system to make affect of Hyper-V configuration changes. Afterwards, try to run the virtual box again. Hope it will run successfully without any failure.
How to solve Forbidden (403) issue while calling REST API? Since we are not authorized who is calling the API, we end up with the problem of 403 Forbidden. To solve this problem, login as developer by using the following command.
oc login -u developer -p developer
Then issue the below command to get the security token which we need to pass in REST API call.
oc whoami -t
Now pass the security key in the REST call Authorization by using -H “Authorization: Bearer PaqE4Ui1mirlpAUqi6w-20VQS0qeD3EXA8w1IhwewqE”. The complete URL looks like,
This client helps you develop, build, deploy, and run your applications on any OpenShift or Kubernetes compatible platform. It also includes the administrative commands for managing a cluster under the ‘adm’ subcommand.
Usage: oc [flags]
Basic Commands: types An introduction to concepts and types login Log in to a server new-project Request a new project new-app Create a new application status Show an overview of the current project project Switch to another project projects Display existing projects explain Documentation of resources cluster Start and stop OpenShift cluster
Build and Deploy Commands: rollout Manage a Kubernetes deployment or OpenShift deployment config rollback Revert part of an application back to a previous deployment new-build Create a new build configuration start-build Start a new build cancel-build Cancel running, pending, or new builds import-image Imports images from a Docker registry tag Tag existing images into image streams
Application Management Commands: get Display one or many resources describe Show details of a specific resource or group of resources edit Edit a resource on the server set Commands that help set specific features on objects label Update the labels on a resource annotate Update the annotations on a resource expose Expose a replicated application as a service or route delete Delete one or more resources scale Change the number of pods in a deployment autoscale Autoscale a deployment config, deployment, replication controller, or replica set secrets Manage secrets serviceaccounts Manage service accounts in your project
Troubleshooting and Debugging Commands: logs Print the logs for a resource rsh Start a shell session in a pod rsync Copy files between local filesystem and a pod port-forward Forward one or more local ports to a pod debug Launch a new instance of a pod for debugging exec Execute a command in a container proxy Run a proxy to the Kubernetes API server attach Attach to a running container run Run a particular image on the cluster cp Copy files and directories to and from containers. wait Experimental: Wait for one condition on one or many resources
Advanced Commands: adm Tools for managing a cluster create Create a resource from a file or from stdin. replace Replace a resource by filename or stdin apply Apply a configuration to a resource by filename or stdin patch Update field(s) of a resource using strategic merge patch process Process a template into list of resources export Export resources so they can be used elsewhere extract Extract secrets or config maps to disk idle Idle scalable resources observe Observe changes to resources and react to them (experimental) policy Manage authorization policy auth Inspect authorization convert Convert config files between different API versions import Commands that import applications image Useful commands for managing images registry Commands for working with the registry api-versions Print the supported API versions on the server, in the form of “group/version” api-resources Print the supported API resources on the server
Settings Commands: logout End the current server session config Change configuration files for the client whoami Return information about the current session completion Output shell completion code for the specified shell (bash or zsh)
Other Commands: ex Experimental commands under active development help Help about any command plugin Runs a command-line plugin version Display client and server versions
Use “oc <command> –help” for more information about a given command. Use “oc options” for a list of global command-line options (applies to all commands).