Some users may encounter errors when they upgrade their DDEI.
After executing the upgrade program on the web console, the browser does not display the upgrade complete screen. The upgrade process could not finish even after a few hours.
First, the user who encountered the issue have to generate the CDT for diagnosis.
If you check the file "log.upgrade.yyyymmdd" in "Event3" folder, the following error logs can be found:
================ Merge imss.ini failed. [2019-08-19 10:14:17] Config file merge fail. [2019-08-19 10:14:17] product_pre_apply failed. [2019-08-19 10:14:17] Error@F_post_upgrade(748) - Post-Upgrade of product failed. [2019-08-19 10:14:17] Product defined post-apply function "F_product_post_apply" execute failed. Check the log files for detailed information. If you are unable to resolve this issue after checking the logs, copy the log files and send them to your support representative. [2019-08-19 10:14:17] Error@F_main(1039) - Post-upgrade step failed. [2019-08-19 10:14:17] Action fail. Start recovery... ================
This means there are duplicate contents in imss.ini file, for example:
=================== #13.17 ubr_wisfqdn=ddei21-jp-wis.trendmicro.com ubr_wisfqdn = ddei21-jp-wis.trendmicro.com ===================
Above are duplicate contents in imss.ini.
To resolve the issue, you have to manually delete the duplicate contents and upgrade again.