ajinaniiyan

This kind of issue after an Unraid upgrade usually points to the database data directories not being picked up correctly by the containers, often due to permission or ownership changes. When MySQL/PostgreSQL see existing files but can’t access them properly, they try to re-initialize and then fail because the directory isn’t empty. I’d first double-check appdata paths, permissions, and make sure the containers are pointed to the original data folders. If you have logical backups (SQL dumps), restoring from those is always the safest route. However, if the raw MySQL data files themselves were damaged during the upgrade and the server won’t start at all, native recovery options are very limited in those cases you can try some third-party tools like Stellar Repair for MySQL can sometimes extract data from corrupted InnoDB files when standard restores don’t work.