On Wed, 2022-10-12 at 22:48 +0530, Ebin Jozer wrote: > What would be the rollback step in case the upgrade failed while using pg_upgrade?? If you don't use --link, the old cluster will still be there and can be used. If you use --link, restore your backup. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com