HP-UX 11i June 2001 Release Notes

Overview of Release Notes for HP-UX 11i June 2001
Migrating from Previous HP-UX Releases
Chapter 1 29
Migrating from Previous HP-UX Releases
You can cold install HP-UX 11i on any supported system listed in
Chapter 2. However, to update to 11i, you must first be running either
HP-UX 10.20 or 11.0. If you wish to update to 11i from any version of
HP-UX other than 10.20 or 11.0, please see the “HP-UX 11i Installation
and Update Guide”, part number 5971-2215, for information on
supported migration paths.