the device cannot boot from the PCIe M.2 card (does not enter in boot mode or hours - if at all). After some investigation it appears that it’s not a problem with the M.2 card itself as initially suspected (new card flashed with ROCK not recognised either).
Temp solution: booted from USB flashed with ROCK into the internal SSD (data reside on NAS, internal storage was not used till now). This is nice but this is not the appropriate OS for the Nucleus+ case.
I would like to try to boot the (not available for download) Roon Nucleus OS
from the (functioning) SSD M.2 card
which I have placed within a M.2 → USB adaptor case so it can be seen as a USB boot device
into the SSD (which I have re-formatted).
When trying that I come to an EFI shell screen which is beyond my knowledge to navigate. Is there a list of shell commands that can allow me to boot into the SSD ?
I came across this in another case. Exact same screenshot and issue. Please try this for me with a monitor and keyboard connected:
The board boot settings are set to UEIF, and it will not work for Nucleus, you need to switch to Legacy boot. To get to this menu, you need to turn on the unit and press F2, then uncheck the UEIF and press F10–>Enter to save the settings.