With an out-of-place upgrade, the installer installs the newer version of Oracle Grid Infrastructure in a separate Oracle Grid Infrastructure home.
An in-place upgrade of Oracle Grid Infrastructure 11g Release 2 (11.2) is not supported. For example, an upgrade of Oracle Grid Infrastructure 11g Release 2 (11.2.0.1) to Oracle Grid Infrastructure 11g Release 2 (11.2.0.2) must be an out of place upgrade.
See Also:
Oracle Grid Infrastructure Installation Guide for information about installing Oracle Grid Infrastructure, out of place upgrades, and performing rolling upgrades of Oracle Grid Infrastructure and Oracle ASM