anchor.diff: -# Installing Buildkite Agent on Red Hat, CentOS and Amazon Linux
  +# Installing Buildkite Agent on Red Hat Enterprise Linux, CentOS and Amazon Linux
   
  -The Buildkite Agent can be installed on Red Hat, CentOS and Amazon Linux using our yum repository.
  +The Buildkite Agent is supported on Red Hat Enterprise Linux 7, CentOS 7 and newer, and Amazon Linux 2
  +using our yum repository.
   
   {:toc}
   
  
positive.code: sudo journalctl -f -u buildkite-agent@2
  ```
  
  For older systems without `systemd` (such as Amazon Linux) you instead use:
  
  ```shell
  sudo cp /etc/init.d/buildkite-agent /etc/init.d/buildkite-agent-2
  sudo chkconfig --add buildkite-agent-2
  sudo service buildkite-agent-2 start
  ```
  
  ## Upgrading
  
  ```shell
  
negative.code: And then start the agent, and tail the logs:
  
  ```shell
  sudo systemctl enable buildkite-agent && sudo systemctl start buildkite-agent
  sudo tail -f /var/log/messages
  ```
  
  ## SSH Key Configuration
  