HP-UX 11i v3 Installation and Update Guide, February 2007 (Initial Release)

Choosing an Installation Method
Deciding Which Method to Use
Chapter 3 43
Deciding Which Method to Use
Now that you have evaluated your system and ordered any needed
hardware, you need to decide whether to cold-install or update to
HP-UX 11i v3 on your system.
When to Cold-Install
CAUTION The cold-install process erases software on the root volume before
installing. If you want to retain any existing software, make sure to back
up that software before migrating or use update. Cold-installing using
Ignite-UX overwrites everything on the target volume.
You can cold-install rather than update to HP-UX 11i v3 when:
• You have a new system.
• You are managing several systems with similar OS configurations.
• Your disk space needs reconfiguration. See “How to Plan Your Disk
Space Needs” on page 31.
• Your systems are organized with clean separation of the OS from
user, application, and data files.
• Overwriting the root (/) volume on existing systems will not cause a
loss of applications or data.
• Your system configuration is not listed as a supported update path.
See “Supported Update Paths to HP-UX 11i v3” on page 41.
You can cold-install from any supported configuration. See “Supported
Systems” on page 32.
The process described in this guide cold-installs a single system from
local media. If you plan to install many systems simultaneously, use an
Ignite-UX server. Additional information on Ignite-UX and newer
versions are available at: http://docs.hp.com/en/IUX/