Upgrade of Session Monitor from Releases 4.4, and 5.0 to Release 5.1 is available only through a CLI upgrade. It is not possible to directly upgrade through PSA as the upgrade of Session Monitor 5.1 involves the upgrade of the complete tech stack including Oracle Linux, Python and MySQL.

1. For Mediation Engines (ME), it is recommended to disconnect all probes.
2. Run the following command to stop OCSM service:

   source /opt/oracle/ocsm/ocsm_env.sh
   pld-systemctl stop

3. Run these commands to save the version information. As the current version of files are updated after the upgrade.

   cp /opt/oracle/ocsm/etc/iptego/version /opt/oracle/ocsm/etc/iptego/version_old

   cp /opt/oracle/ocsm/etc/iptego/version.history /opt/oracle/ocsm/etc/iptego/version.history_old            
   

   ----------> Execute only if the version.history file is present in the location /opt/oracle/ocsm/etc/iptego/.
4. Run the following command to stop the MySQL services:

   systemctl stop mysqld

5. Upgrade Oracle Linux 7.X to Oracle Linux 8. Follow the official Oracle Linux 8 Upgrade Guide. For more information, see https://docs.oracle.com/en/operating-systems/oracle-linux/8/leapp/leapp-PreparingfortheUpgrade.html#chap-leapp-prep.

   Note:

   The upgrade to Oracle Linux 8 removes OCSM, however OCSM data is left intact.
6. Run the following command to verify that Oracle Linux 8 has been installed:

   cat /etc/oracle-release

   You are required to re-configure the proxies. For more information, see Configuring Proxies.