HP-UX 11i Installation and Update Guide, March 2003

Choosing a Migration Path
Deciding Which Method to Use
Chapter 230
Update When...
You can update rather than cold-install HP-UX 11i when you are
updating from HP-UX 10.20 or 11.0 as well as the following:
• You are only updating a few (1-3) systems to HP-UX 11i.
• You are concerned about recovering unique applications and data on
your root volume, and do not want to write over non-OS files when
installing HP-UX 11i.
• Each system has a unique configuration.
• Current disk space is sufficient for HP-UX 11i (see “Planning Your
Disk Space Needs” on page 76).
NOTE update-ux removes all HP-UX 10.x patches from the system prior to
updating to HP-UX 11i. Any 10.x applications left on the system after
the update may not be supportable if they required those patches. After
migrating your system, consult the documentation for those remaining
applications for HP-UX 11i requirements.
If your system meets these requirements, follow the update procedure in
Chapter 6. See “Preparing to Update Your Existing System” on page 82
for more information about preparing to update your system.
Additional Considerations (Cold-install or Update)
Firmware Patches Should Not Be Included Cold-Install or
Update Session
If you are migrating from either HP-UX 10.20 or HP-UX 11.0, HP
strongly recommends you do not include firmware patches while running
a cold-install or update session.
How Do You Know
If This Affects
You?
The following systems are affected:
•A-Class
•L-Class
•N-Class