During an installation, Oracle Universal Installer records all the actions that it performs in a log file. If you encounter problems during the installation, review the log file for information about possible causes of the problem.
installActionsdate_time.log oraInstalldate_time.err oraInstalldate_time.out
For example, if an interactive installation occurred at 9:00:56 a.m. on October 14, 2005, then the log file is named:
Do not delete or manually alter the
Inventory directory or its contents. Doing so can prevent Oracle Universal Installer from locating products that you install on your system.