If you are upgrading from SunScreen EFS 1.1 or 2.0 your machine upgrades to SunScreen 3.1 in routing mode. If you are upgrading from SunScreen EFS 3.0, the current mode of your machine is preserved.
The upgrade procedure automatically backs up your previous SunScreen configurations, certificates, and packages in case the upgrade fails. Next, the program automatically removes your previous SunScreen software packages and then installs the SunScreen 3.1 software packages. The following procedures describe how to upgrade both locally and remotely administered Screens.
Before starting the upgrade procedure, make a backup of your existing logfiles. The upgrade procedure removes your existing logfiles. Refer to your SunScreen EFS documentation for backup procedures, if needed.
To retain configurations and SKIP keys and certificates (including your system's SKIP local identities) between software upgrades, do not remove /etc/opt/SUNWicg.