Types of Patches

A patch is a collection of files and directories that replaces or updates existing files and directories that are preventing proper execution of the existing software. The existing software is derived from a specified package format, which conforms to the Application Binary Interface (ABI).

You can manage patches on your Solaris system by using the Patch Manager software or by using the patchadd command.

Signed and Unsigned Patches

A signed patch is one that has a digital signature applied to it. A patch that has its digital signature verified has not been modified since the signature was applied. The digital signature of a signed patch is verified after the patch is downloaded to your system.

Patches for the Solaris 2.6, Solaris 7, Solaris 8, and Solaris 9 releases are available as signed patches and as unsigned patches. Unsigned patches do not have a digital signature.

Signed patches are stored in Java^TM archive format (JAR) files and are available from the SunSolve Online^SM web site. Unsigned patches are stored in directory format and are also available from the SunSolve Online web site as .zip files.

For information about applying patches to your system by using Patch Manager, see Managing Patches by Using the Command-Line Interface (Task Map) or Managing Patches by Using the Browser Interface (Task Map).

For information about applying patches by using the patchadd command, see Chapter 25, Managing Solaris Patches (Tasks), in System Administration Guide: Basic Administration.