During the course of installation or uninstallation, log records are generated for the operations that occur. These records are saved into a single file in a Unified Logging Format (ULF). The installer Log Viewer (viewlog command) provides a user-friendly interface for examining these log records.
After installation is complete, the Log Viewer is located with the installer here:
Solaris SPARC: /var/sadm/prod/SUNWcomm-entsys5i/Solaris_sparc
Solaris x86: /var/sadm/prod/SUNWcomm-entsys5i/Solaris_x86
After uninstallation, the Log Viewer is removed along with the installation and uninstallation utilities. See How Uninstalling Works for information.
For instructions on using the logs and Log Viewer, refer to Examining Installation Log Files.