PMS will not run on Synology

[berno]

@ChuckPa Please can you help?
After seemingly successfully running DBRepair-1.11.00 on my Synology DS918plus with DSM 7.2, Plex version 1.41.8.9834-72009834 will not stay running. If I try to start it it will run for a couple of seconds and then quit saying “Manually Stopped”

Do you have any idea what might be causing this?

[ChuckPa]

@berno

Can you please make a ZIP of the Logs directory (under PlexMediaServer) and attach it here ?

That’s the first thing to look at .

[berno]

Logs.zip (673.4 KB)

@ChuckPa Thanks for your prompt reply. Here’s the ZIP of my logs.

I messed about with permissions and managed to get Plex to run. The only problem now is that it will not auto run when I restart my NAS. There is only an option to uninstall Plex in Package manager so I now have to reinstall Plex every time I restart my NAS.

[ChuckPa]

@berno

Did you change permissions OF or INSIDE the PlexMediaServer shared folder ?

Did you put any media inside that shared folder ?

If you changed any permission in PlexMediaServer, then we must fix them

Synology FAQ - Questions, Answers, and How-To's

FAQ 32: Repairing the PlexMediaServer shared folder While DSM 7 manages the permission of the PlexMediaServer shared folder itself, it does not manage the permission of files placed inside. This means any modification of permissions can cause PMS to fail. Frequent causes: Placing media in the shared folder – Which should NEVER be done. This is for PMS internal (metadata) use only. Special allowed case of adding plug-ins but must be installed correctly. One of the biggest confusion po…

If you have placed ANY media inside the PlexMediaServer shared folder

PLEASE move it to its own shared folder immediately.

[ChuckPa]

@berno

I have moved us to a new thread.

Your issue seems different than the Library DB size.

[berno]

@Synology FAQ - Questions

#!/bin/sh
cd /var/packages/PlexMediaServer/shares/PlexMediaServer
chown -R PlexMediaServer:PlexMediaServer  AppData &
find AppData -type d -exec chmod 755 {} \; &
find AppData -type f -exec chmod 644 {} \; &
wait

Thanks @ChuckPa I changed permissions OF the PlexMediaServer folder.
All my media is in separate shared folders.

Here is the email I got from Task Scheduler:

Task Scheduler has completed a scheduled task.

Task: FixPlexMediaServer owner
Start time: Thu, 29 May 2025 17:06:35 +0100
Stop time: Thu, 29 May 2025 17:10:53 +0100
Current status: 0 (Normal)
Standard output/error:

From DS918plus

[ChuckPa]

In DSM 7,

The PlexMediaServer shared folder must be RW for System Internal User PlexMediaServer.

The biggest changes in DSM 7 :

1. Local user Plex → System Internal User (service) PlexMediaServer
2. Shared folder Plex → Shared folder PlexMediaServer
3. DSM (installer) scripting with full privileges → NO privileges to fix anything.

Please confirm your permissions are set as follows.

and (similar)

Using FileStation, apply permissions to all files (These are the ACLs DSM uses)
– your usernames instead of mine but same idea

Ensure Apply to this folder, subfolders and files is checked.

[berno]

@ChuckPa Thanks again for your help. Things seem to be working OK now. I tried restarting my NAS and Plex eventually auto started. It just seemed to take longer than usual.
I’m really not sure why running DBRepair messed up my permissions but, thankfully, things seem to be back to normal now.

Regards,
Bernard.

[ChuckPa]

If you don’t run DBRepair as sudo (root) , it will mess it up.

I’ll double check but am pretty certain all Syno devices require ‘root’ user mode.

[berno]

I did run it as sudo (root) though

[ChuckPa]

I’ll look at it.

I’m doing some development with it now.
I’ll make certain the configuration settings for Syno are up to date

[berno]

Thanks again Chuck. I appreciate your help.