Nucleus One backup restoration stuck for over 2 days (ref#RIIAAL)

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· Nucleus One

I'm having trouble with my Nucleus hardware

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· The Nucleus boots up and I can connect to it in the Roon app without issue, but I have a question about configuration/storage/attached devices

Describe the issue

Hi good folks @roon. I just received my Nucleus One. Setting up a connecting to network and my account was instant. I ran the Roon core on my iMac before and did daily backups. Now the issue is that I see the backup running, but it's been on for more than 2 days and still not complete. In the meantime I can't use Roon at all.

I have a local library with about 57k songs. I tried completely resetting and connecting to the library without the backup and all songs showed up. But I don't want to lose my play history, playlists and manual album corrections, so I need the backup to complete. So I want to restore from my backup. Do I just need to be more patient?

Any help will be most welcome.

Hi @JB21,
Thanks for reaching out to us about this issue. As a test do you have any other backups that you can try? I want to rule out the possibility of a problem with this backup. If other backups also have the same problem please review the Nucleus Migration Guide and make sure you’ve followed all of the steps.

Let us know if you still need assistance after checking these.

Hi Daniel,
I tried 3 other backups - same result. I have now done a fresh backup (Roon says it was successful). Restored as per Nucleus Migration Guide. I started this about 12 hours ago and still seems to be running. The Roon home screen sometimes apprears and I can see the latest added albums of my library and the correct count of songs / albums, so something must be happening right. I can not access the albums or songs though as they disappear after about 10 seconds, when a ring with a “waiting for your Roon Server” message appears. Moments later all I see is the animated Roon icon.
How long should I expect the restore to last for a libary of about 57K song files on a NAS?

Hi @JB21,

Thank you for your post. We see a RoonServer instance still running and logged in on the Mac that you were formerly using to host your server - if this is the same machine you’re using as a Roon Remote to perform the Backup to your Nucleus, then the most likely possibility here is that you’re actually still logged into the Mac’s server.

Please try the following:

  1. Make sure your Backup of the database is safe and ready for Backup.
  2. From the Roon Settings page, sign out of your RoonServer.
  3. Close RoonServer on your Mac. You should see it running as a background process in the mehu bar. Keep Roon (the GUI) open.
  4. Fully delete RoonServer on the Mac:
  • Navigate to your RoonServer’s Database Location
  • Find the folder that says “RoonServer”
  • Rename the “RoonServer” folder to “RoonServer_old”
  1. From there, in Roon, connect to the Nucleus One
  2. Try to perform the migration.

Let us know if this helps. Thanks!

Hi, did this as you suggested and it successfully removed my Mac’s server.
I was successful at restoring from my most recent backup within Tidal titles available immediately and also all may and when I shared my NAS it also started importing files. I was even able to play some of them. The import hat been running for about 55 hours now and is still not complete. I mostly see the animated Roon icon, but sometimes see my home screen for about 10 seconds before it goes back to the animation again. Roon is in the meantime unusable, which is a little frustrating.
Yesterday I got the information that 57k titles were imported with 8k scanned, now I get the message that 44.5k titles were imported and 15k scanned. My library size is 57k songs, not sure how it could have less imports than a day before?
Is this running correctly and do I just need more patience to run the restore with such a large library. Or is there another issue getting in the way of my being able to enjoy the music (and the Nucleus One?).
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Analysis can take time especially rally over a network. Try setting analysis to on demand. In this mode instead of processing the entire library, it does each track prior to playback.

Hello @JB21 ,

I too would suggest setting Background and On-Demand Analysis to Throttled (or temporarily Off) in Roon Settings → Library to see if that helps. Let us know how it goes!

Hi, I did completely turned off the background an on-demand analysis. I could see that my restored backup was present. Playlists appeared and file import started. But after a while the animated logo appeared and stays on almost the entire time. I occasionally get to see the Home Screen for like 10 seconds with the circle animation in the right top corner. If I click there I get the information that files are scanned, but the everything disappears and goes back to the animated Roon logo. It is frustrating that it is not possible to monitor at all if the restore is happening and where it is in the progress. I have been running this for 4 days now and still can’t use Roon at all.
I don’t want to start my library from scratch and lose playlists and the many hours I invested in album identification.
Any help is appreciated.

Hi @JB21 ,

Thanks for giving that a try. I activated diagnostics mode for your Nucleus and I see that the number of tracks listed is almost at 100k, not at 57k as expected. I would suggest trying a Clean Up Library function in Roon Settings → Library to see if that helps, let us know!

Ok, this is strange. I have certainly not 100k song files on my drive. I reset everything again and cleaned up the Library. There were only 7 files that are not associated (correctly as I deleted their folder on my NAS).
I experience the same behaviour again: animated Roon icon and very sporadically I see the home screen for a few seconds…
Another thing I noticed an maybe helps finding the glitch: in the Connect to your Roon Server I see my Nucleus as “iMac Nucleus One” with a laptop icon after I have launched “Restore from Backup”. When the Nucleus is reset, it appears as first as “Nucleus One” with its own icon. Is this normal?
Starting to get a bit frustrated to be honest. I had this now for almost 4 weeks and it’s not yet usable (or only if I give up my whole listening history, playlist and personlisations.

Hi @JB21 ,

Do you by any chance still have the iMac? I am not sure why the Nucleus is reading such a fluctuation in tracks. Perhaps it might be a better step to go back to the iMac, run library cleanup and then make a fresh backup. Let us know if this helps, thanks!