Problems with an external disk on Oracle VM

Recently I had a lot of disk errors on my Oracle VM server.
The errors indicated that some scsi problems were manifesting itself with:

unable to enumerate USB device on port 2

After unloading and reloading the ehci_hcd it seems to be gone.

Different silent install files WLS 10.3.2 and 10.3.3

Today I tried to cut some corners and use a silent.xml file for WLS 10.3.3 for a silent installation of 10.3.2.

To my amazement on a clean machine I received the following error:

oracle@xxx001:/opt/oracle$ java -Djava.io.tmpdir=/opt/oracle/tmp -jar /nfsstage/wls1032_generic.jar -mode=silent -silent_xml=./silent/wls_silent.xml -log=/tmp/wls.log
Extracting 0%....................................................................................................100%
The local BEA product registry is corrupted. Please select another Middleware Home or contact Oracle Support


I checked the wls_silent.xml file and found that it includes Coherence, which was not bundled with the 10.3.2 version.

So I modified the 10.3.3 silent_xml file from


value="WebLogic Server/Core Application Server|WebLogic Server/Administration Console|WebLogic Server/Configuration Wizard and Upgrade Framework|WebLogic Server/Web 2.0 HTTP Pub-Sub Server|WebLogic Server/WebLogic JDBC Drivers|WebLogic Server/Third Party JDBC Drivers|WebLogic Server/WebLogic Server Clients|WebLogic Server/WebLogic Web Server Plugins|WebLogic Server/UDDI and Xquery Support|WebLogic Server/Server Examples|Oracle Coherence/Coherence Product Files"

to

value="WebLogic Server/Core Application Server|WebLogic Server/Administration Console|WebLogic Server/Configuration Wizard and Upgrade Framework|WebLogic Server/Web 2.0 HTTP Pub-Sub Server|WebLogic Server/WebLogic JDBC Drivers|WebLogic Server/Third Party JDBC Drivers|WebLogic Server/WebLogic Server Clients|WebLogic Server/WebLogic Web Server Plugins|WebLogic Server/UDDI and Xquery Support|WebLogic Server/Server Examples"

Then I restarted the silent installation and now everything works.