HP-UX 11i Version 1 Installation and Update Guide, June 2003

Choosing a Migration Path
Deciding Which Method to Use
Chapter 232
Updating to 64-bit OS
update-ux defaults to the OS word-width that your system is currently
running. For example, if the target system is running 32-bit OS, this will
be the default for the new OS to be installed.
NOTE Changing an existing 64-bit OS to 32-bit is not supported. To return a
64-bit OS to 32-bit, use the Ignite-UX make_tape_recovery or
make_net_recovery command to restore the 32-bit OS.
Updating
considerations
and workarounds
You can update a system from 32-bit OS to 64-bit OS while updating to
HP-UX 11i v1, provided that you consider these hardware and firmware
issues:
• Is your system capable of running 64-bit operation? See Table 3-1,
“Supported Systems,” on page 42 in Chapter 3.
• Is your system’s firmware recent enough to support 64-bit operation?
See “Firmware Requirements” on page 47 in Chapter 3.
• 64-bit binary data cannot be used by 32-bit applications. 64-bit is
useful if you need large address space, such as for use with very large
databases and large-scale modeling. 64-bit applications can be
compiled and linked on 32-bit systems; however, these applications
cannot be run on a 32-bit system.
• If updating an existing HP-UX 11i v1 system from 32-bit to 64-bit
OS, do not include the HP-UX 11i v1 Quality Pack (GOLDQPK11i)
bundle in the update-ux command. Doing so may cause a mk_kernel
failure. Instead, install the GOLDQPK11i bundle from the Support
Plus CD using swinstall after updating to this release.
• If updating an HP-UX 10.20 system with the CDE Spanish language
keyboard enabled: After updating from HP-UX 10.20 to HP-UX 11i
v1, changing from 32-bit to 64-bit OS and installing the HP-UX 11i
v1 Quality Pack (GOLDQPK11i) bundle, you must install patch
PHSS_23644 to re-enable the CDE Spanish language keyboard.
Obtain this patch from the HP IT Resource Center
(http://itrc.hp.com). This problem does not occur with other
languages.