OPatch failed with following error.
Prerequisite check "CheckSystemCommandAvailable" failed.
The details are:
Missing command :fuser
UtilSession failed:
Prerequisite check "CheckSystemCommandAvailable" failed.
Index
Error Description
Oracle Interim Patch Installer version 12.2.0.1.27
Copyright (c) 2022, Oracle Corporation. All rights reserved.
Oracle Home: /d01/oracle/product/19.13.0/dbhome_1Central Inventory : /home/oracle/oraInventory
from: /d01/oracle/product/19.13.0/dbhome_1/oraInst.loc
OPatch version: 12.2.0.1.27
OUI version: 12.2.0.7.0Log file location : /d01/oracle/product/19.13.0/dbhome_1/cfgtoollogs/opatch/opatch2022-01-31_13-07-10PM_1.log
Verifying environment and performing prerequisite checks...
Prerequisite check "CheckSystemCommandAvailable" failed.
The details are:
Missing command :fuser
UtilSession failed:
Prerequisite check "CheckSystemCommandAvailable" failed.
Log file location: /d01/oracle/product/19.13.0/dbhome_1/cfgtoollogs/opatch/opatch2022-01-31_13-07-10PM_1.log
OPatch failed with error code 73
Cause
From the above mentioned error, we can see that it’s stating you are missing a command.
Missing command :fuser
There is a missing package on the OS
Solution
Install rpm package psmisc on the host to resolve the issue.
yum install psmisc
If you resume the OPatch apply, it will complete successfully now.