Lenovo System Update Solution (Deployment Guide) - Manual (Page 83)

When System Update is performing an automatic search through a proxy server
with authentication and no user name or password have been saved, no dialogs
will be displayed to the end user. An error will be logged to the System Update
logging file and System Update is shutdown. If the user name and password have
been saved, System Update will try to connect using the saved user name and
password information. If there are errors with the connection or performing the
automatic search, these will be logged to the System update logging file and
System Update is shutdown.
Whenever System Update is about to download and install a set of updates
containing one or more packages that require automatic reboot or shutdown of the
target system, no warning message is displayed informing the end user about the
reboot or /shutdown.
Note: Command line scripts may be changed in future releases. If you use silent
command line scripts and a repository to store update packages, set the following
registry value to YES to recognize update packages with license agreements:
HKEY_LOCAL_MACHINE\SOFTWARE\Lenovo\System Update
\Preferences\UserSettings\General\IgnoreLocalLicense
Search modes
The following table provides a list of search modes supported by System Update:
Table 24. Search modes
Search mode Description
-search C Enables System Update to only search for
critical updates.
-search R Enables System Update to only search for
critical and recommended updates.
-search A Enables System Update to search for
critical, recommended and optional
updates when searching the Lenovo Help
Center. When you are using a network
repository, System Update searches for
critical, recommended and optional update
packages when using the -search A
command.
Appendix A. Command line parameters 77