You don’t actually open the Preferences.xml.
The important step here was to find where it is.
If you’ve find it in
/var/lib/plexmediaserver/Library/Application Support/Plex Media Server then the rest is straight forward.
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You first need to take the external USB drive and have it automatically mount at the same place each time. (Linux drive “letters” will change if you’re not careful. The steps given guarantees the drive will always be available at the same place – which is a requirement for PMS to work. – It needs to find its data every time)
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First do this
In my example, I show one naming scheme. You are free to choose whatever you like as long as the names don’t conflict with existing Linux . Also, you should not mount in the /media folder until your skill level catches up.
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After you’ve mounted the drive you’re going to use for the data, you next take my other procedure, substituting my direcdtory names for the ones you’ve chosen, and run through the commands.
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What will happen is that you make a perfect copy of the existing /var/lib/plexmediaserver. This is our goal.
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When that’s all done, we tell linux to switch to use it which is in the final steps of that whole sequence.