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.