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Installing WSS 3.0 and MOSS SP1

Recently I deployed MOSS 2007 on a mid sized farm for a customer. This was a relatively painless experience bar a few group policies issues that I was already wised up to and expected! As part of the deployment I also needed to installed WSS 3.0 SP1 and MOSS SP1.

Note: It is essential that you read Planning and deploying SP1 for Microsoft Office SharePoint Server before attempting this task.

I ran into a small issue when attempting the install WSS 3.0 SP1 on a WFE server, failing after step 2.

sp1_failed

I investigated the issue (check log file) and set out to re-install WSS 3.0 SP1. Running the installation for SP1 again greets you with "The update is already installed on this system":

sp1_already_installed

Now I knew that wasn't true sure I witness SP1 kicking me out after step 2 :) After some further investigation I found out to re-install a failed SP1 installation you need to use STSADM.exe in the command line:

§ stsadm -o upgrade -forceupgrade –inplace

This fixed all my problems and a smooth MOSS SP1 deployment followed. I hope this helps you if you are left banging your after a failed SP1 install.