Patch installation fails

If the environment is corrupted, the patch installation process may fail.

Suppose you are upgrading an installation from patch level 1 to level 4 and the system has finished uninstalling the packages. While trying to install the first package, the system encounters a problem and the installation fails.
Run the upgrade-site.sh script with the -F option to get past a failed installation. In this scenario, you can get to patch level 1 with one of these commands:
Note: The -F option forces the specified upgrade or downgrade.