Before you apply updates to your system, you must download the updates that you want from the Sun update server to that system.
You can download updates from the Sun update server based on an analysis of the system, or you can specify particular updates to download.
The Update Manager application ties the download operation and the installation operation together. So, when you request that an update be installed, the update is first downloaded to your system and then installed.
Some updates, which are marked as Download Only, cannot be installed by the Update Manager application. When you request that a Download Only update be installed, the update is downloaded to your system, but not installed. To install the update, you must follow the installation instructions in the update’s README file.