Synology: DSM 7 Installation Archive -- Archived from main thread

Plex Media Server NAS & Devices
635

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  1. The changes we made were forced by DSM 7’s complete architectural change for apps.

  2. The installer does not have ‘root’ (administrator) privilege in DSM 7 and therefore will never be able to “just sort out the mess” itself. It’s completely NON-PRIVILEGED now. You WILL have to help it.

  3. The procedure, when followed, works. You don’t lose any data. It might take a lot of time but it won’t fail

  4. Did you read the release info and migration instructions ? Did you notice how the installer gives step-by-step instructions of what you need to do?

  1. The task for you, the user/administrator, is succinct.
    – “Give System Internal User ‘PlexMediaServer’ ‘Full Control’ of the “Plex” shared folder”. (MUST check the ‘apply to this folder, sub-folders and files’ checkbox)
    – Once done (for all sub-folders and files), the installer will be able to process through all the changes it needs without user involvement and without error.
  • If you forget, you will get ‘System Error 0’ and need to clean up and run it again.
  • If you interrupt it, the state of the migration will need be evaluated to determine how to reset (recover) before running again.

  1. The amount of time required is dependent on
    – speed of the HDDs
    – amount of data already existing in the “Plex” shared folder

  2. Processing time is about 3 minutes per each 1000 media items (regardless of type) indexed by Plex.
    – Count up all your media (movies, episodes, other videos, music tracks, and photos)
    – Divide by 1000
    – Multiply by 3 → Approximate time, in minutes, the installer needs to process and move the metadata.
    (e.g. 10,000 items total / 1000 =10; 10 * 3 = 30 minutes)

  3. Given the time required and anxiety it causes, Read and ASK QUESTIONS

  4. Don’t panic if anything doesn’t go as expected. Only those who went rogue lost data.

  5. Even “IT guys” can be uneasy because you don’t yet understand how it works internally.

  6. During the migration, you’ll see ‘Migration.log’ in the Plex share. It’ll appear about 2 minutes after the migration states (DSM is slow at presenting it sometimes)

It looks like this (using Syno Text Editor app)

Plex Media Server migration to DSM 7 started:  Sat Oct 30 15:26:16 EDT 2021
=== Sat Oct 30 15:26:16 EDT 2021 === Start: Change ownership
=== Sat Oct 30 15:29:45 EDT 2021 === Completed: Change ownership
=== Sat Oct 30 15:29:45 EDT 2021 === Start: Convert symbolic links
=== Sat Oct 30 15:34:41 EDT 2021 === Completed:  Convert symbolic links
=== Sat Oct 30 15:34:41 EDT 2021 === Start: Migrate Plex Media Server
=== Sat Oct 30 15:34:41 EDT 2021 === Completed:  Migrate Plex Media Server
=== Sat Oct 30 15:34:41 EDT 2021 === Start: Clean /volume1/Plex
=== Sat Oct 30 15:34:41 EDT 2021 === Completed: Clean /volume1/Plex

When it’s done Cleaning, it’s done.

You WILL get a popup “Installation Successful” – AND the Plex shared folder will be empty when all your data has been migrated.

If you get a success statement but your data was left in the Plex share , then you missed something.

By backing up, cleaning up the rogue DSM 7 install (which the installer does allow you to do), you can then install again and watch it engage (sits at “Installing”).

Questions?

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