To install TMG, then SP1 then RU1 for any reason, is a long way drive if you follow the normal process!
I found the below way to install the slipstreamed source of TMG with SP1 in one DVD. Follow the steps as shown below to end up with the upgraded copy
- Run the following from an elevated command prompt:
ServerManagerCmd.exe -inputpath ^<DVD_path^>FPCPreRequisiteInstallerFilesWinRolesInstallSA_Win7.xml -logPath C:WindowsTEMPTMG-Prerequisites.log
- Prepare a Forefront TMG SP1 slipstream DVD with the following steps:
- Copy the Forefront TMG DVD and the Forefront TMG SP1 MSP file to a local drive on the target computer. For the purposes of this example, let’s assume this is c:tempTMG.
- At a command prompt, type the following command and press ENTER.
msiexec /a c:tempTMGFPCMS_FPC_SERVER.msi /p TMG-KB981324-amd64-ENU.msp /qb /L*v c:tmglog.txt
When the operation completes, you will have a full installation of Forefront TMG already upgraded to Service Pack 1.