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HP OpenVMS Version 8.3 Upgrade and Installation Manual > Chapter 4 Before Upgrading
the OpenVMS Operating System
Notes, Cautions, and Restrictions
This section provides important information that can affect
the success of your upgrade. Review the cautions, restrictions,
and notes carefully before you begin the upgrade. Upgrade Paths |  |
The following subsections describe the various types of upgrades
to OpenVMS Version 8.3. You can upgrade directly to OpenVMS I64 Version 8.3 from only
the following versions of OpenVMS I64: You can upgrade directly to OpenVMS Alpha Version 8.3 from
only the following versions of OpenVMS Alpha: If you are running a version of OpenVMS Alpha earlier than
Version 7.3-2, you cannot upgrade directly to Version 8.3. Instead,
you must first upgrade to Version 7.3-2 (depending on the version
of OpenVMS you are running, you might need to upgrade to an intermediate
version first). For example, if you are running OpenVMS Alpha Version
7.1, you first need to upgrade to either Version 7.2, 7.2-1, or
7.2-2, and then you can upgrade to Version 7.3-2, and then to Version
8.3. If you are running OpenVMS Alpha Version 7.2 or later, you can
upgrade directly to Version 7.3-2, and then to Version 8.3. Components
You Choose Not to Install |  |
If you choose not to install optional OpenVMS networking software (DECnet
or TCP/IP) or the DECwindows/Motif GUI during the upgrade, the upgrade
procedure removes these products from the system disk. For information
about checking for appropriate versions of software on your system
and for certain products requiring that you manually remove older
versions, see “Software That Must
Be Manually Removed”.
Licenses and Layered
Products |  |
The upgrade procedure is designed so that you do not need
to reinstall most layered products after the upgrade. However,
you might need to reinstall certain layered products because of
product-specific installation procedures. The upgrade procedure leaves your OpenVMS license and layered
product licenses intact. You do not need to reinstall these licenses
after you upgrade.
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