Red Hat Enterprise Linux/CentOS

su -c 'yum install NetworkManager'

$ export XDG_RUNTIME_DIR=/run/user/`id -u`
$ sudo systemctl restart systemd-logind.service
$ loginctl enable-linger student
$ export XDG_RUNTIME_DIR=/run/user/$(id -u)

wget -c https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/crc/latest/crc-linux-amd64.tar.xz

$ cd ~/Downloads
$ tar xvf crc-linux-amd64.tar.xz
Create the ~/bin directory if it does not exist and copy the crc executable to it:

$ mkdir -p ~/bin
$ cp ~/Downloads/crc-linux-*-amd64/crc ~/bin
Add the ~/bin directory to your PATH:

$ export PATH=$PATH:$HOME/bin
$ echo 'export PATH=$PATH:$HOME/bin' >> ~/.bashrc

Replace the earlier crc executable with the executable of the latest release. Verify that the new crc executable is in use by checking its version:

$ crc version
$ crc config set preset okd #optional if you want switch from OCP to OKD
$ crc config set disk-size 35
$ crc config set memory 9000
$ crc config set cpu 4

Set up the new CodeReady Containers release:

$ crc setup

Start the new CodeReady Containers virtual machine:

$ crc start
Started the OpenShift cluster.

The server is accessible via web console at:
  https://console-openshift-console.apps-crc.testing

Log in as administrator:
  Username: kubeadmin
  Password: 6Hd7K-u2VY8-2S559-rBMWt

Log in as user:
  Username: developer
  Password: developer

Use the 'oc' command line interface:
  $ eval $(crc oc-env)
  $ oc login -u developer https://api.crc.testing:6443

Run crc console. This will open your web browser and direct it to the web console.
Log in as the developer user with the password printed in the output of the crc start command.

$ eval $(crc oc-env)

$ crc console --credentials
To login as a regular user, run 'oc login -u developer -p developer https://api.crc.testing:6443'.
To login as an admin, run 'oc login -u kubeadmin -p 6Hd7K-u2VY8-2S559-rBMWt https://api.crc.testing:6443'