How to ignore optional prerequisites when installing Oracle database in silent mode? [closed]

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I was referring to this PAGE to install Oracle 11g database in silent mode.

When installing, there were some optional prerequisites which are ignorable:

   CAUSE: Some of the optional prerequisites are not met. See logs for details. /oratmp/OraInstall2013-12-22_12-14-09PM/installActions2013-12-22_12-14-09PM.log
   ACTION: Identify the list of failed prerequisite checks from the log: /oratmp/OraInstall2013-12-22_12-14-09PM/installActions2013-12-22_12-14-09PM.log. Then either from the log file or from installation manual find the appropriate configuration to meet the prerequisites and fix it manually.

This is different from the GUI based installation method where I can choose to ignore those warnings, however, I didn't see if silent installation provided similar ways to skip those warnings.

Any ideas?

update:

Those failed preconditions were some library files missing, e.g.

INFO: INFO: Package: compat-libcap1-1.10: This is a prerequisite condition to test whether the package "compat-libcap1-1.10" is available on the system.
INFO: INFO: Severity:IGNORABLE
INFO: INFO: OverallStatus:VERIFICATION_FAILED

INFO: INFO: Package: ksh-...: This is a prerequisite condition to test whether the package "ksh-..." is available on the system.
INFO: INFO: Severity:IGNORABLE
INFO: INFO: OverallStatus:VERIFICATION_FAILED

I don't have all the necessary privileges to install those packages, so comes to the question.

Answer 1

The command line arguments are listed in the OUI guide, and include:

-ignoreSysPrereqs For ignoring the results of the system prerequisite checks.

There is also an -ignorePrereq option which doesn't seem to be documented.