AIX relocatable installationAIX® relocatable installation is supported with the base AIX installation utilities, such as installp,instfix, lslpp, and lppchk. The use of relocation is of particular interest to applications that needto be installed within a Workload Partition because default System WPAR configurations do notinclude a writeable /usr or /opt file system. Application installations might need to be retargeted tolocations other than the traditional /usr or /opt placement.

In addition to being able to install filesets in the default installation location, the systemadministrator can install relocatable packages into alternate root install locations. This enables thesystem administrator to:

Install and maintain multiple installations of the same installp package in a single instance ofthe AIX operating system.

Install and maintain multiple versions of the same installp package in a single instance of theAIX operating system.

Use native installp tracking tools (such as lppchk, lslpp, instfix, and inulag) to verify andreport installation data on all relocated installation instances.

Attach and detach preinstalled software locations on a given system (such as applicationhosting).

User Specified Installation Location (USIL)A User Specified Installation Location (USIL) is a tracked relocated installation path that iscreated by the system administrator. This location is tracked by the system and can be used asan alternate installation path for packages that support relocation.

Relocatable installation utilitiesTo preserve code isolation, all USIL changes are isolated to separately compiled modules.

Relocatable applications packagingThe application packaging must support relocatable installation.

Relocatable application executionThe application design must support execution from an installation environment.

USIL connector ODM class objectThe USIL connector Object Data Manager (ODM) class object resides in the /etc/objrepos/usilc directory and contains data that links the default Software Vital Product Data (SWVPD)with all USIL instances.

Parent topic: Installing the Base Operating System

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