Image catalog for a virtual device
You can use either an optical image catalog or a tape image catalog to perform an IBM® i software upgrade, install PTFs (fixes), or install single licensed programs.
An image catalog is an object on the system that contains optical images. Each catalog is associated with one user-specified integrated file system directory. The system-recognized identifier for the object type is *IMGCLG.
Image catalog requirements:
- An image catalog upgrade works like a D-mode IPL without a console during the installation of Licensed Internal Code. Reference codes are used to display the status.
- Installations done by using image catalogs require an IBM i control language (CL) command line to initiate the installation.
- An installation cannot be performed if an independent auxiliary storage pool (ASP) is accessible. Image files cannot reside in an independent ASP.
- Virtual media devices do not support the LODRUN command using multiple media. This refers to the OS support of LOADRUN only. The customer written program (QINSTAPP) can make use of image catalog commands to manipulate volumes. The only time OS support would handle multiple volumes is if a restore operation spanned the volumes.
- To perform an installation using image catalogs, you must have at least 1536 MB of free storage on the load-source disk unit. Preparing to upgrade or replace software using an image catalog describes how to calculate storage requirements and free up space in the load-source disk unit for an image catalog. Cleaning up disk storage space describes other general considerations on how to free up space in the load-source disk unit.