This is the problem: the NVMe drive may only be used for the OS. That is, Roon OS is installed on this drive. The internal SSD needs to be a 2.5” drive.
This thread may help:
Just setup a new Roon ROCK. Everything setup just fine. Then I went to check the ROCK’s internal storage and it wasn’t showing up in Roon’s settings. I am using a 2 TB Samsung 970 M.2 SSD. Since the ROCK installation guide said that M.2 was fine for setting up a ROCK, that is what I thought I could use for internal storage. Checking the web UI, I don’t see anything other than the listing for Roon Database and Settings and that it sees that I have storage. But no reference to Internal Storage and…
And…
Roon Optimized Core Kit (ROCK) comes with a “factory reset” disk image, which is meant to be flashed onto a USB flash drive. When the device is booted from this USB flash drive it will partition, format, and initialize your SSD. 1. Prepare your NUC...