Upgrading Session Monitor from Release 4.4 or 5.0 to Release 5.2

Upgrade of Session Monitor from Releases 4.4, and 5.0 to Release 5.2 is available only through a CLI upgrade. Upgrade of Session Monitor from Releases 5.1 to Release 5.2 is available only through a PSA page upgrade.

For Mediation Engines, it is recommended to disconnect all probes.
Run the following command to stop Session Monitor service:
```
source /opt/oracle/ocsm/ocsm_env.sh
pld-systemctl stop
```
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/.
Run the following command to stop the MySQL services:
```
systemctl stop mysqld
```
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 Session Monitor, however Session Monitor data is left intact.
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.