User's Manual

This command executes the dependency rules within the DUP, issues any warnings, exits without applying the update to
the system, and writes the results to the console. You can also use the DUP to set an exit code to perform decisions
within the scripts.
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 ensures 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 Multiple Systems
For large environments that consists of multiple 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 local drive of the system. 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.
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