This is the cause of the failure.
The changes (Permission changes because username changed) cannot be handled automatically by package center.
At this point.
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Uninstall the DSM 7 package and use the ERASE option (makes “PlexMediaServer” empty)
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You will want to install 1.29.2 from Package Center.
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Using this FAQ, scroll down to scenario 2.
- You will want to confirm FULL CONTROL of This folder, sub-folders and files belong to PlexMediaServer for everything in the “Plex” shared folder.
- As soon as you accomplish this, The DSM 7 package installer will automatically do the rest for you. DO NOT INTERRUPT IT.
– File: Plex/Migration.log will allow you to track progress of the upgrade migration
– “Cleaning Completed” means it’s done.