3
Issues and Restrictions
This chapter provides information you must be aware of when installing
patches. Be sure to check the
Patch Summary and Release Notes document
of the kit you are installing for any issues and restrictions that pertain
to that installation.
3.1
When Single-User Mode Is Recommended
Although you can install patches in multiuser
mode, Compaq recommends that you bring down your system to single-user
mode when installing patches that affect the operation of the Tru64 UNIX
operating system or the product you are patching. If your system must remain
in multiuser mode, it is recommended that you apply the patches when the
system is as lightly loaded as possible.
3.2
Impact on System Upgrades to Later Versions of Tru64 UNIX
In the presence of patches or layered
products, certain procedures used to upgrade a system to a later version
of Tru64 UNIX can lead to an inconsistency among operating system and layered
product objects. For more information see
Appendix
A for general Tru64 UNIX system upgrade information.
3.3
No RIS or DMS Installation of Patches
Remote Installation Services (RIS) and Dataless Management
Services (DMS) installations of patches are not supported. However, the
patch kit installation mechanism does support network installation via
NFS.
3.4
Direct setld Installation and Removal of Patch Subsets Is Not Allowed
Manually installed patches are installable only
using their installation script. Using setld or dupatch will
not work.
3.5
Limitation for /var/adm/manual_patch/backup Directory Handling
The patch management utility assumes there
is one
/var/adm/manual_patch/backup directory per system. It does
not handle placement of archived original files for multiple systems in
one directory.
3.6
No Ctrl/c During Installation Phase
Do not enter a Ctrl/c command during the installation
phase of the patch kit.
Caution
As with any system update, entering a Ctrl/c during this phase may leave
the operating system software environment in an inconsistent and nonrecoverable
state.
3.7
Manually Installed patches can not be deleted
There is no supported way to de-install
Patches that were "Manually Installed".
3.8
Release Patches Do Not Automatically Supersede CSPs
Currently, release patches cannot automatically
supersede manually installed customer-specific patches (CSPs). Any release
patch that delivers a file, previously delivered by a CSP will have it's
installation blocked and will result in a dupatch message and require baselining.