By default, needed Linux patches are not automatically downloaded to the server (either to /var/yum/cache, or /var/cache/zypper (for SUSE)).
In order to enable auto-download:
- go to intigua.properties file (full path: /usr/share/tomcat/default/conf/intigua.properties)
- Add the following line: os.pre-download.updates = True
- Restart tomcat (service tomcat restart)
In order to disable again, change True back to False.