Resolving OPatch Error OUI-67064: OPatchSession Cannot Load Inventory When applying patches using OPatch on Oracle Database or Grid Infrastructure, you may encounter error OUI-67064. This post explains the troubleshooting steps to resolve this common issue. The Error OUI-67064: OPatchSession cannot load inventory for the given Oracle Home /opt/oracle/product/19.3.0/db_1. Possible causes are: - No read or write permission to ORACLE_HOME/.patch_storage - Central Inventory is locked by another OUI instance - No read permission to Central Inventory - The lock file exists in ORACLE_HOME/.patch_storage - The Oracle Home does not exist in Central Inventory This error indicates that OPatch is unable to read or interact with the Oracle Inventory, which is critical for patching operations. Root Cause Analysis After examining the logs and directory structures, a mismatch in ownership within the central inventory directory /opt/app/oraInventory was identified. The directory list...