HP e3000 MPE/iX Release 6.0 System Software Maintenance Manual (30216-90272)

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D Backdating Your System
This appendix contains instructions for returning your system software to a previous
release (backdating).This chapter describes general backdating methods that will work in
most cases.
CAUTION
Perform a backdate when you have updated your operating system version
and have serious problems. Only do this under direction from your HP
representative or Response Center.
Do not use the directions in this appendix to backout patches.
If you applied patches using staging areas, refer to Appendix G , “HP Stage/iX
Reference,” for directions on backing out of a staging area.
If you applied patches separately from a system software update, refer to the HP
Response Center, if you have a software support contract, or your HP representative for
directions on backing out patches.
If you applied patches as part of a system software update, follow the procedures in this
appendix. The patches will be removed as part of the backdating process.
This appendix is divided into the following sections:
Planning Your Backdate
Securing Your System
Performing the Backdate
Method 1: Using a CSLT (Customized System Load Tape)
Method 2: Using a Factory SLT (System Load Tape)
Method 3: Using an FPT (Factory Preload Tape)
Finishing Up