Unable to open Roon on 2012 MacMini due to outdated OS, preventing backup for Nucleus transfer (ref#DGY2XG)

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Hello @Mark_Rodziewicz,

Congratulations on the Nucleus One! That is going to be a fantastic upgrade from the 2012 Mac Mini, and it will make your Roon experience significantly snappier and more stable.

You have run into a classic “catch-22,” but there is a very straightforward workaround. You essentially need to install a “bridge” version of Roon that still supports your older macOS just long enough to perform a final backup.

Step 1: Install the Version (2.64)

Since the current version of Roon (2.65+) requires macOS 11 or 12, you need to roll back to Version 2.64. This version still supports older macOS versions and is fully compatible with our current database structure for backup purposes.

  1. Download the Legacy Installer: You can find the links for the 2.64 installers in our official release notes here: Roon 2.64 Release Notes & Downloads.
  2. Replace the App: Drag the 2.64 version into your Applications folder, choosing “Replace” when prompted.
  3. Open Roon: It should now launch successfully on your Mac Mini.

Step 2: Perform the Backup

Once Roon is open, go to Settings > Backups.

  • Connect a USB thumb drive directly to the Mac Mini (this is the most reliable way to move the data to the Nucleus).
  • Select Backup Now and choose the USB drive as the destination.

Step 3: Migration to Nucleus One & Path Editing

Once your Nucleus One arrives and you have restored your backup, there is one critical step to ensure you don’t lose your play history or playlists:

  1. Restore from Backup: During the Nucleus setup, choose “Restore from a Backup” and select your USB drive.
  2. Check Storage Settings: Go to Settings > Storage. You will likely see your old NAS folders marked as “Unavailable” in red.
  3. CRITICAL: Do Not Delete These Folders! If you delete the old “unavailable” path and add a new one, Roon will treat your music as brand-new files. This will break the links to your playlists and scrub your play history.
  4. The “Edit” Workaround: Click the three dots next to the red/unavailable path and select Edit. Simply point that existing entry to the new network path on your NAS.

By editing the path instead of deleting it, you are telling Roon: “The files haven’t disappeared; they have just moved to this new hardware.”

Please let us know if you have any trouble getting that 2.64 version to launch!