User's Manual

Effects of Applying the Updates on a Running System

This section describes all the effects of applying the updates on a Running System.

System Reboot Required

Certain packages, such as those that update the system BIOS, require a reboot for the new software to take effect. After

you apply an update that requires a reboot, you must restart the system to complete the update.

You have the option of choosing to defer the reboot until another time as long as you do not turn off the system. This

feature is primarily intended to allow you to apply any number of updates together and perform the system reboot after

the last update has been applied. If this process is interrupted, for example, through a power interruption, you must

repeat the updates. Therefore, it is recommended that you schedule updates for a time when the reboot can take place

immediately after you apply the last update.

Saving Console Output for Linux

As the DUPs are executed, messages are printed to the console. To redirect console output, use the following syntax

with interactive commands:

./packagename.bin|tee -a logname.lo

The

|tee specifies the output from the DUP to be sent to both the console and to a log file. The ‑a switch make sure that

the output is appended to a file, protecting any previous log file output from being overwritten.

Delivering DUPs to the Systems

The DUP application does not provide scheduling and delivery of the packages to multiple systems. You must rely on

third‑party or native operating system applications to accomplish script execution and distribution on multiple systems.

Updating Many Systems

For large environments that consist of hundreds or perhaps thousands of systems, remote software distribution

applications provide the best solution. Many of these tools can effectively leverage the DUP and provide the

convenience of installing and updating a variety of software, such as operating systems and applications, in a

heterogeneous environment.

Network file shares also are an effective method of making DUP accessible in a distributed environment. When a DUP

begins execution, it first copies the contents of the package to a temporary location on the system’s local drive. This

process ensures that the update can be completed even if the connection to the network share is lost for any reason.

Remote Terminal Sessions

In today's highly distributed environment, it is common for IT organizations to use remote access solutions, such as

Microsoft Terminal Services, to gain access to their remote systems. You may use this type of solution to run DUPs.

NOTE

: If the terminal session is disconnected during a NIC driver update, you will need to re-connect and verify

that the update has completed successfully.