HP-UX 11i Version 1 Installation and Update Guide, December 2004

Choosing an Installation Method
Supported Update Paths to HP-UX 11i v1
Chapter 352
NOTE If you attempt to update from this release (HP-UX 11i v1 December
2004) to the HP-UX 11i v2 September 2004 release, the update process
will stop and you will get the following message:
ERROR: Updating from the newer 11i v1 December 2004
Update Release to the earlier 11i v2 September 2004 Update
Release is not supported. See latest 11i v1 Install/Update
Guide for more information.
What To Do
HP supports the following HP-UX 11i v2 (B.11.23) cold-install and
update paths for this release:
You can cold-install the September 2004 HP-UX 11i v2 (B.11.23)
release.
You can update from HP-UX 11i v1 (B.11.11) June 2004 and earlier
HP-UX 11i v1 releases to the September 2004 HP-UX 11i v2 release.