Recently when completing a MIM 2016 hotfix installation the upgrade process was failing with a very generic and largely unhelpful error message. It’s possible (and in the case of MIM 2016 highly recommended) to generate an installation log file, for troubleshooting purposes, when performing an install.
The command below is an example from running a MIM Service hotfix and generating a verbose log file of all the actions, including errors, that occur during the installation process. This can be invaluable when trying to determine what is causing any failures you may be experiencing.
msiexec.exe /p MIMService_x64_KB5009981.msp /l*v installlog.txtJust be aware in the case of MIM the verbose log does generate a LOT of logging and you need to look carefully through the file to actually find the information you are after.
Refer to the msiexec page for the complete details of all the parameter options.