Hi,
Thank you very much all your reply and sharing. We're glad that the question is solved now. It may help others who have similar issue. Here's a short summary for the problem.
Problem/Symptom:
SCCM Language Pack installation failed with exit code 2.
Solution/Reason:
Remove the double quotes to correct the syntax error. The correct command is:
DISM.exe /image:%OSDTargetSystemDrive%\ /ScratchDir:%OSDTargetSystemDrive%\windows\TEMP /Add-Package /PackagePath:Microsoft-Windows-Server-Language-Pack_x64_en-gb.cab
It's appreciated that you could click "Accept Answer" to your answer and upvote it, this will help other users to search for useful information more quickly. Thanks again for your time!
Best regards,
Simon