Cannot Backup Database on External HDD connected to Nucleus+

Roon Software Discussion Nucleus
1

Hello,

I recently migrated my Roon Core from an older iMac to a Nucleus+. While the core was on my iMac I used a USB HDD both as music storage and to backup the Roon Database. This worked without issue.

After migrating the core to the Nucleus+, I connected the USB HDD to the Nucleus, edited music storage folders and everything is running smooth. I also updated the scheduled backup path to the same drive, now attached to the Nucleus. However, it fails each time I try to backup, both scheduled and manually. The message is “Backup failed at XX:XX:XX / Cannot find the backup directory”. I also tried using a different folder to be sure it wasn’t an issue with the folder being watched as part of my library. Lastly, I connected another USB HDD to the 2nd port on the Nucleus and tried to backup there, to the same results.

Any idea on why the backup directory isn’t being located? I don’t know the format of the drives off hand but had used previously to backup the database without issue.

Thanks!

2

Travis what is the file system format of the drive you are using?
It might be read only on the Nucleus

Mike

3

Hi Mike, drive is Mac OS Extended (Journaled) formatted. Thanks

4

Hi Travis I this is probably your issue.
They are only really supported on Mac’s.

Best bet is to copy the data off and re-format the drive to exFat and then copy your music back.

I hope this helps

Edit: I just found this as well Which file systems does ROCK support?

Mike

5

Thanks Mike. I had used it previously to backup the database when the core was on my iMac. Is it just that the Nucleus can’t write to it while the Mac could?

6

Yes it is a Mac only file system, I am surprised that it can read it. I have stopped using these format as I am quite cross platform these days and exFat seems to be the most compatible not that Microsoft have open sourced it

7

As noted by other, Linux which is what the OS on the Nucleus is based on cannot write to HFS+, aka Mac Journal format. It can read just fine. You will also find, that you cannot add new music to that drive either.

You can get a USB Flash drive, format it exFAT, as Michael suggested, and then use it as backup storage.

Or, you can get a new external drive, format it exFAT, copy the music over and use it for both Music storage and as a Backup location. With the additional ability of being able to copy music to it in the future. And keep the current drive as a backup.

8

Thanks all, appreciate the feedback. Ultimately the external USB HDD is just a temporary solution as I have an 8TB SSD drive I’ll be installing in the Nucleus to house my library. At that point I’ll grab a USB flash drive and exFAT format for backups. Any recs on how big a flash drive is ideal for backing up a collection upwards of 8000 albums?

Best!

9

FYI, the backup in Roon is for the Roon database only, not the actual music files. And a 128 GB drive should hold a good number of database backups.

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