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Question 6

  

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I do not have OS/390 UNIX System Services running, but would like to put on SMP fixes to Language Environment. However, then I receive error messages, indicating that I have to have OS/390 UNIX System Services running to install Language Environment maintenance. Is this true?

Answer

Language Environment is made up of multiple FMIDs, and one of these installs parts into the HFS. These parts are C header files (i.e., stdio.h, etc...). The header files are also installed into PDS's as part of another FMID. To keep the PDS and the HFS versions of the headers files synchronized, we provide ++IFREQ statements in corresponding PTFs. In the PTF for the PDS FMID, there will be an ++IFREQ for the HFS FMID PTF, and vice versa.

Your scenario sounds like you are probably an OS/390 ServerPac customer who has not restored the HFS data sets that were shipped with the OS/390 order. However, the OS/390 CSI (shipped also with the order) shows both the PDS FMID and the HFS FMID installed.

In your case, the long-term solution should be to get the HFS up and running. Completing the whole OS/390 install puts you in a fully supported environment. The short-term solution could be to put on the PDS PTF while bypassing the IFREQ. The two choices are:

  1. Complete the OS/390 install by restoring the HFS data sets. Then you will be able to install Language Environment service as you expect.
  2. Perform a BYPASS(IFREQ) on the APPLY of Language Environment service. BYPASS(IFREQ) will bypass all ++IFREQ in PTFs. So, if you do this for the generalized case (service for more than Language Environment) you may be bypassing important PTFs. Even if BYPASS(IFREQ) is done for the specific case (Language Environment service only), you should go through the SMP REPORT to see that only the HFS FMID PTFs were bypassed. The HFS FMID of Language Environment is JMWLx5H - where x is 5, 6, or 7 etc...

    If more than the HFS FMID PTFs were BYPASSed, you may need to APPLY the remainder of the PTFs individually.

There are possibly other things you can do via UCLIN to the HFS FMID, but those methods are too risky and might mess up your system.
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