The migration docs do not fully cover migrating DSM because that’s a rare combination.
You’re effectively doing a DSM → DSM import. Which is very straight forward.
I can tell you how to do this.
On the DSM 7 system
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Create USER Plex. It will default to group ‘users’
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Create Shared Folder “Plex” (exact case) on volume1 (I presume your largest volume)
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Using Filestation, mount the OLD NAS (exported Plex shared foldeer) on the new NAS (call it “oldPlex” folder name)
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Open the mounted “oldPlex” folder.
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Copy “Library” to the “Plex” share on the new NAS
– This will take time but will bring over all files –
– Make certain there are no copy errors -
In the “Plex” shared folder, right-click “Library” → Properties
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Permissions tab
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CREATE permission for user “Plex”
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Give it basic R/W,
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Check the box to Apply to this folder, subfolders, and files
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Also make user ‘Plex’ the owner.
– this will take a bit to accomplish – -
When complete, close down the windows
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Now you’re ready to install Plex (downloaded from https://plex.tv/downloads)
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As it starts to install, it will fail because there is no username “PlexMediaServer”
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This is expected and normal.
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PMS from your DSM 6 system is now ready to “migrate” (which is also an import) from the “Plex” share to it’s final location in PlexMediaServer (new shared folder)
IF DSM barks about “Operaton Failed”, check resource monitor → processes.
you’ll find PlexMediaServer is running commands (find/realpath/ln).
Open a new tab to DSM 7, Look at the “Plex” shared folder
You’ll see “Migration.log”… it will show you current progress.
The final step is “Clean: /volume1/Plex”
Procedure here
After you’ve got everything running on DSM 7,
- User “Plex” isn’t needed
- The old “Plex” share isn’t needed.
You can remove both if you wish.
