Prerequisite check "CheckSystemCommandAvailable" failed. || 12.2C
Pre-requisite: Completed successfully. [oracle@testing 30593149]$ opatch prereq CheckConflictAgainstOHWithDetail -ph ./ Oracle Interim Patch Installer version 12.2.0.1.21 Copyright (c) 2020, Oracle Corporation. All rights reserved. PREREQ session Oracle Home : /testing/app/oracle/product/12.2.0/testing_1 Central Inventory : /testing/app/oraInventory from : /testing/app/oracle/product/12.2.0/testing_1/oraInst.loc OPatch version : 12.2.0.1.21 OUI version : 12.2.0.1.4 Log file location : /testing/app/oracle/product/12.2.0/testing_1/cfgtoollogs/opatch/opatch2020-05-15_15-38-45PM_1.log Invoking prereq "checkconflictagainstohwithdetail" Prereq "checkConflictAgainstOHWithDetail" passed. OPatch succeeded. But Opatch apply fails: [oracle@testing 30593149]$ opatch apply Oracle Interim Patch Installer version 12.2.0.1.21 Copyright (c) 2020, Oracle Corporation. All rights reserved. Oracle Home : /testing/app/oracle/pro