Upgrading Portal 6.1.0.1 on ubuntu 9.04 64 bit

I have been running my laptop with ubuntu 9.04 for some months now and am quite a fan. I do occassionaly get a hang when coming out of suspend but I can live with that. Another thing I decided to do was switch off Compiz Fusion (i.e. set visual effects to none) - principally because I didn't like the delay when maximising and restoring apps.
Since I run the 64 bit version of ubuntu I often get issues - especially when the app was written for a 32 bit linux host.
I have to use IBM WCM for demonstration purposes so decided to run a native version. This was quite a challenge but eventually got it all working.
Now has come the time to update the system to the latest version.
Firstly I updated WAS from 6.1.0.19 to 6.1.0.23
This was done by first downloading and installing the special 64 bit update installer for linux:

download.updii.61019.linux.amd64.zip

This was unzipped into the "/update" folder. Running the ./UpdateInstaller/install.sh from the /update folder simply installs the update installer. Which I installed to /UpdateInstaller

Next to download the fixpack itself. Again this was a special 64 bit version:

6.1.0-WS-WAS-Linux64-FP0000023.pak

This, I placed into "/fixes folder

I ran the wizard as root from the /UpdateInstaller folder with
./update.sh

This process works fine!

So now onto the Portal Update...

Firstly I downloaded the Universal Portal updater for Portal 6.1:

6.1-WP-UpdateInstaller-Universal.zip

Which was then unzipped to

/update

Next I downloaded the fix pack itself:

6.1.0-WP-Multi-FP002.zip

This was unzipped to /update/fixes

I then ran the Portal update installer from /update
with the command:

./updatePortalWizard.sh

The system seemed to complain initially but then proceded to do the update correctly.

BEWARE - this process takes a considerable time!

Also, you must remember to run the ConfigEngine task update-wcm afterwards.
Lastly ensure you read the update instructions since there are additional lines needed in the the wcm service properties file.