3.9. Accessing prerollback health check output in the system log

Procedure

• To access the results of a prerollback script, run the following command:

  $ sudo journalctl -o cat -u redboot-task-runner.service

  Example output of a prerollback script

  ...
  ...
  Running Red Scripts...
  STARTED
  GRUB boot variables:
  boot_success=0
  boot_indeterminate=0
  boot_counter=0
  The ostree status:
  * rhel c0baa75d9b585f3dd989a9cf05f647eb7ca27ee0dbd4b94fe8c93ed3a4b9e4a5.0
      Version: 9.6
      origin: <unknown origin type>
    rhel 6869c1347b0e0ba1bbf0be750cdf32da5138a1fcbc5a4c6325ab9eb647b64663.0 (rollback)
      Version: 9.6
      origin refspec: edge:rhel/9/x86_64/edge
  System rollback imminent - preparing MicroShift for a clean start
  Stopping MicroShift services
  Removing MicroShift pods
  Killing conmon, pause and OVN processes
  Removing OVN configuration
  Finished greenboot Failure Scripts Runner.
  Cleanup succeeded
  Script '40_microshift_pre_rollback.sh' SUCCESS
  FINISHED
  redboot-task-runner.service: Deactivated successfully.

  注記

  In case of a rollback, the pre-rollback script runs the sudo microshift-cleanup-data --ovn command to prepare the system for a potential software downgrade.