HP-UX 11i v1 Installation and Update Guide, December 2006

Choosing an Installation Method
Deciding Which Method to Use
Chapter 3 51
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 v1 on your system.
When to Cold-Install
CAUTION The cold-install process erases software on the root volume before
installing HP-UX 11i v1. 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 disk.
You can cold-install rather than update to HP-UX 11i v1 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 33.
• 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 v1” on page 49.
You can cold-install from any supported configuration. See “Supported
Servers and Workstations” on page 36.
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. Ignite-UX is available on the HP-UX 11i v1 DVD.
Additional information on Ignite-UX and newer versions are available
at: http://docs.hp.com/en/IUX/