Sun Java Enterprise System 5 Installation Guide for UNIX

Examining Installation Log Files

If a problem occurs during installation or uninstallation, the first place to look for information on what happened is the installation logs. Informational, warning, and error messages are issued after such operations as user choices, package manipulations, and installation or uninstallation steps. Messages on installation, uninstallation, and install-time configuration are gathered into the source log files. Information that is displayed for each message includes date and time, log level, module ID, and the message text. Passwords are never included.

Log File Formats

There are four types of log files that capture installation or uninstallation information:

The log messages are stored in a Sun standard format called Unified Logging Format (ULF). If you find ULF difficult to read, you can use the Java ES Log Viewer to view the log messages.

Source log files can be edited with a text editor. The following table lists the formats of the source log files.

Table 9–1 Log File Formats

Logged Entity 

Log File Name Format 











After an uninstallation, the uninstaller removes the installer, the Log Viewer , and itself. However, source log files are not removed and are stored in the following locations:

ProcedureTo Use Log Files for Troubleshooting

  1. Examine the summary file. For example:


    If a problem occurred, determine which component caused the problem. Determine if multiple problems occurred. You will probably need to look at one or both of the detail logs.

  2. Examine the detail log. For example:


    Look for the first error or warning that occurred and resolve it. Sometimes resolving one error resolves a number of seemingly unrelated errors that follow.