Issue/Introduction:
Symantec Endpoint Protection Manager (SEPM) migration process failed during database upgrade. Log showed the failure occurred during the Symantec Endpoint Protection (SEP) client package insertion into the database.
"Content is not allowed in prolog"
Cause:
MAC OS X creates .DS_Store files for OS X Finder's use. When browsing network shares, Finder will leave .DS_Srore files on the network share to utilize as a cache of the folder's contents. The .DS_Store files being in the installation and tomcat/packages directories caused the conflict.
Resolution:
Delete .DS_Store and other hidden OS X files from the installation folders and the tomcat/packages directory. Hidden files on Mac OS X, Unix, and Linux operating systems start with a dot. Once these files are removed the problem will be resolved.
When downloading SEP installation files extract the files on a Windows machine. If you are extracting the files on a Mac, do not browse the extracted files to keep the .DS_Store files from being created.
To help keep this issue from happening you can follow the Apple document listed below to disable creating these .DS_Store files on network shares.