Introduction: In this article we will be applying the RU patch 13.5.0.27 (37784425) for OEM 13c or Oracle Managed Services (OMS) in Linux OS. OMSPatcher: OMSPatcher is an Oracle utility used to apply patches and updates to the Oracle Management Service (OMS) and its associated repository in Oracle Enterprise Manager (EM) Cloud Control. It is same like OPatch utlity for applying database patches. Prerequisites: Below are the minimum requirements. Downtime required at OEM end for 120 mins. Minium 10GB space should be free in OMS_HOME mount point. Also 25GB additional space required for patch & Binary backup. Repository Database must have minimum RU 19.12.0.0.0 patch. Keep ready the OMS weblogic admin server URL, Weblogic user password and SYS user password of repository database. Download the RU Patch & required OMSPatcher from below link. OMS RU patch 13.5.0.27 OMSPatcher Environment: Hostname oem.oraeasy.com OS ...