Anyone have information about this.
Pl see the official documentation
Please refer to:
R12.1.1 : Oracle E-Business Suite Installation and Upgrade Notes Release 12 (12.1.1) for Linux x86 (Doc ID 761564.1)
Oracle Applications Documentation Resources, Release 12.1 [ID 790942.1]
Database Preparation Guidelines for an E-Business Suite Release 12.1 Upgrade [ID 761570.1]
Oracle E-Business Suite Upgrade Guide Release 11i to 12.1.1 [ID 1082375.1]
Oracle E-Business Suite Pre-install Patches Report [Video] [ID 1448102.1]