Check the status of greenboot health checks

You can check the status of greenboot health checks before making changes to the system or while troubleshooting. By using helpful commands to verify that greenboot scripts have finished running.

Procedure
  • Check the current greenboot health check status by running the following command:

    $ systemctl show --property=SubState --value greenboot-healthcheck.service

    where:

    start

    Greenboot checks are still running.

    exited

    Checks have passed and greenboot has exited. Greenboot runs the scripts in the green.d directory when the system is in a healthy state.

    failed

    Checks have not passed. Greenboot runs the scripts in the red.d directory when the system is in this state and restarts the system.

  • Check the numerical exit code of the greenboot health check service by running the following command:

    $ systemctl show --property=ExecMainStatus --value greenboot-healthcheck.service

    An exit code of 0 means the health check succeeded. A non-zero exit code means the health check failed.

  • To see a report showing a message about boot status, such as Boot Status is GREEN - Health Check SUCCESS, use the following command:

    $ cat /run/motd.d/boot-status
    Example output
    Boot Status is GREEN - Health Check SUCCESS