Just a short description of what I did to upgrade an existing Enterprise Manager 13.4 (RU9) to the latest release 13.5 ...
Environment:
OCI machine, Oracle Linux 7.9, Enterprise Manager 13.4 RU9
OCI machine, Oracle Linux 7.9, Repository Database Release 19.3
OCI machine, Oracle Linux 7.9, Repository Database Release 19.3
Software-Download
EM 13.5 - downloaded from edelivery.oracle.com
Preparation
Creating the new em13500 base directory, the MiddlewareHome and the Instance Home.
mkdir $ORACLE_BASE/product/em13500
mkdir $ORACLE_BASE/product/em13500/em13500
mkdir $ORACLE_BASE/product/em13500/gc_inst
mkdir $ORACLE_BASE/product/em13500/em13500
mkdir $ORACLE_BASE/product/em13500/gc_inst
I prefer to have one separate EM Release Base Directory for each release, instead of creating everything in $ORACLE_BASE/product.
Extracting the response files from the installation media
./em13500_linux64.bin -getResponseFileTemplates -outputLoc /u01/software/em_install
Preparing some init parameters in the repository database (restart after)
alter system reset "_optimizer_nlj_hj_adaptive_join" scope=both sid='*';
alter system reset "_optimizer_strans_adaptive_pruning" scope=both sid='*';
alter system reset "_px_adaptive_dist_method" scope=both sid='*';
alter system reset "_sql_plan_directive_mgmt_control" scope=both sid='*';
alter system reset "_optimizer_dsdir_usage_control" scope=both sid='*';
alter system reset "_optimizer_use_feedback" scope=both sid='*';
alter system reset "_optimizer_gather_feedback" scope=both sid='*';
alter system reset "_optimizer_performance_feedback" scope=both sid='*';
alter system reset "_optimizer_strans_adaptive_pruning" scope=both sid='*';
alter system reset "_px_adaptive_dist_method" scope=both sid='*';
alter system reset "_sql_plan_directive_mgmt_control" scope=both sid='*';
alter system reset "_optimizer_dsdir_usage_control" scope=both sid='*';
alter system reset "_optimizer_use_feedback" scope=both sid='*';
alter system reset "_optimizer_gather_feedback" scope=both sid='*';
alter system reset "_optimizer_performance_feedback" scope=both sid='*';
Adopting upgrade.rsp to the environment
RESPONSEFILE_VERSION=2.2.1.0.0
UNIX_GROUP_NAME="dba"
INVENTORY_LOCATION=/u01/app/oraInventory
INSTALL_UPDATES_SELECTION=skip
ORACLE_MIDDLEWARE_HOME_LOCATION=/u01/app/oracle/product/em13500/em13500
ORACLE_INSTANCE_HOME_LOCATION=/u01/app/oracle/product/em13500/gc_inst
OLD_BASE_DIR=/u01/app/oracle/product/em13400/em13400
ORACLE_HOSTNAME=oem1.demo.ch
ONE_SYSTEM=true
WLS_ADMIN_SERVER_USERNAME=weblogic
WLS_ADMIN_SERVER_PASSWORD=manager
WLS_ADMIN_SERVER_CONFIRM_PASSWORD=manager
NODE_MANAGER_PASSWORD=manager
NODE_MANAGER_CONFIRM_PASSWORD=manager
WLS_ADMIN_SERVER_PASSWORD=manager
DATABASE_HOSTNAME=oem2.demo.ch
LISTENER_PORT=1521
SERVICENAME_OR_SID=poem1.demo.ch
SYS_PASSWORD=manager
SYSMAN_PASSWORD=manager
EMPREREQ_AUTO_CORRECTION=false
REPOSITORY_BACKUP_DONE=true
PLUGIN_SELECTION={}
b_upgrade=true
EM_INSTALL_TYPE=NOSEED
UNIX_GROUP_NAME="dba"
INVENTORY_LOCATION=/u01/app/oraInventory
INSTALL_UPDATES_SELECTION=skip
ORACLE_MIDDLEWARE_HOME_LOCATION=/u01/app/oracle/product/em13500/em13500
ORACLE_INSTANCE_HOME_LOCATION=/u01/app/oracle/product/em13500/gc_inst
OLD_BASE_DIR=/u01/app/oracle/product/em13400/em13400
ORACLE_HOSTNAME=oem1.demo.ch
ONE_SYSTEM=true
WLS_ADMIN_SERVER_USERNAME=weblogic
WLS_ADMIN_SERVER_PASSWORD=manager
WLS_ADMIN_SERVER_CONFIRM_PASSWORD=manager
NODE_MANAGER_PASSWORD=manager
NODE_MANAGER_CONFIRM_PASSWORD=manager
WLS_ADMIN_SERVER_PASSWORD=manager
DATABASE_HOSTNAME=oem2.demo.ch
LISTENER_PORT=1521
SERVICENAME_OR_SID=poem1.demo.ch
SYS_PASSWORD=manager
SYSMAN_PASSWORD=manager
EMPREREQ_AUTO_CORRECTION=false
REPOSITORY_BACKUP_DONE=true
PLUGIN_SELECTION={}
b_upgrade=true
EM_INSTALL_TYPE=NOSEED
Stopping the central agent
emctl stop agent
Stopping Enterprise Manager - and only the Enterprise Manager. You'll need a running AdminServer (an an open repository database)
emctl stop oms
Starting the installer
em13500_linux64.bin -silent -responseFile /u01/software/em_install/upgrade.rsp
Waiting, waiting, waiting ... about 30 minutes in my environment. But this can take much longer in real life environments.
To be honest: Because of the missing upgrade instructions, it took two tries to install. In both cases, the installer created a really helpful log file in html format, and left the original installation unchanged.
Finally
Important
An Enterprise Manager Upgrade is - as always - an out-of-place upgrade. Keep in mind that any connection descriptions to LDAP as well as Your certificates are not (!) upgraded / moved to the new installation. So, if You're using LDAP for authentication or having Your own certificates in place: Save the information / the certificate and apply it after the upgrade to the new EM.
