Type the HLQ that you want to use for the msys for Setup proclib data set. The default is SYS1. To ensure that the "Update system configuration" task can be completed successfully, you need to:
z/OS requires that a proclib is cataloged in the master catalog. Be sure that data sets with the HLQ you specify are cataloged in the master catalog and not in a user catalog. Otherwise the msys for Setup proclib cannot be allocated.
All alphabetic characters you enter are converted to upper case.
Related information: