HP-UX 11i v2 Installation and Update Guide, December 2005

Choosing an Installation Method
Deciding Which Method to Use
Chapter 3 49
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 v2 on your system.
NOTE If your system is already running HP-UX 11i v2, use update-ux to
update to the new version of the OE for HP-UX 11i v2.
When to Cold-Install
CAUTION The cold-install process erases software on the root volume before
installing HP-UX 11i v2. 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 v2 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 v2” on page 45.
You can cold-install from any supported configuration. See “Supported
Servers” on page 36.