Recover from an Upgrade Failure

You can recover from an upgrade failure by rerunning the upgrade or by performing a fresh installation and then restoring the system with the backup taken at the beginning of the upgrade process.

1. To rerun the upgrade, follow the steps for the type of upgrade you were attempting.
   • Upgrade EFA from a Single-node to a Multi-node Deployment
   • Upgrade EFA on TPVM in a Single-node Deployment
   • Upgrade EFA in a Single-node Deployment
   • Upgrade EFA in a Multi-node Deployment
   • Upgrade EFA on TPVM in a Multi-node Deployment
2. To perform a fresh installation and restore the system backup, take the following steps.
   1. Uninstall EFA to remove any components that might have been installed before the upgrade failed.
      • Uninstall EFA on TPVM in a Multi-Node Deployment
      • Uninstall EFA in a Multi-node Deployment
      • Uninstall EFA on TPVM in a Single-Node Deployment
      • Uninstall EFA in a Single-Node Deployment
   2. Follow the steps for the type of installation you need.
      • Install EFA on TPVM for High Availability
      • Install EFA for High Availability
      • Install EFA on TPVM in a Single-Node Deployment
      • Install EFA in a Single-Node Deployment
   3. Locate the backup tar file that was generated during the upgrade attempt.
      The backup file has a naming convention similar to postgres-efa-backup_20201008.tar.gz. The file is saved to //var/log/efa/ or //apps/efa_logs/.

      

      Note

      The file is not reflected in the output of the efa system backup-list command.
   4. Restore the backup.
      

      device# efa system restore --backup-tar <filename>.tar.gz