WebSphere UpdateInstaller Install Problem

... and so it was needed to update my Websphere from 7.0.0.0 to 7.0.0.27. It was all running on AIX 5.3, oh well. Some issues on the way that might suprise WebSphere newcomers follow.

Old java
First, you gotta know, you need an IBM or Sun Java 2. I had java 1.4.2 :-) and was getting various errors, none of them stating it was a wrong version of java. The only common message was the command line output: "lease check for log files in the "updilogs" subdirectory of the current user's home directory...."

Resolution:
To run the install on command line and use the bundled Java, do the following:
./install -options responsefile.updiinstaller.txt -silent -is:javahome /install/was_bonita/JDK/jre.pak/repository/package.java.jre/java/jre


License agreement
Next you might get an error on noc accepting the license. The command prompt says: "Please check for log files in the "updilogs" subdirectory of the current user's home directory. If no logs have been produced there, please try running the install command again, with this additional parameter: -is:javaconsole"

In such case you need to see the log. If the license acceptance is the problem, the following will be shown in the /updilogs/log.txt file:
com.ibm.ws.install.ni.ismp.actions.ISMPWarningDialogAction, wrn, INSTCONFFAILED : LICENSE_NOT_ACCEPTED : Accept the license agreement in the response file before installing.

Resolution: add the license accept option to your response file.
-W silentInstallLicenseAcceptance.value="false"