Issue: You cannot install EPM System products simultaneously on different UNIX systems when $HOME is shared across your UNIX systems.
When you run EPM System Installer on different UNIX systems at the same time, EPM System Installer attempts to write the temporary installation files in the same $HOME/InstallShield directory, causing each installation to fail. EPM System Installer uses InstallShield, a third-party tool, and an InstallShield limitation causes this conflict.
Solution: Complete an installation on one UNIX system before starting an installation with the same user on another UNIX system.