Existing OES 1 Linux servers can be upgraded to OES 2 Linux. As a part of the upgrade, SMS can also be selected for installation.
OES supports patch updates to the servers. SMS is also available via patch updates. For more information on how to configure OES 2 Linux server to receive updates via patch channels, see Updating (Patching) an OES 2 SP3 Server
in the OES 2 SP3: Installation Guide.