I have two external Seagate USB3 5TB hard drives connected via USB3 to a Dell Wyse 5020 thin client running OMV 5.5.11-1.
All of a sudden, the system will not boot with them connected to USB3
It doesn't even get to Grub menu - just hangs with a black screen.
If I unplug both hard drives during the hang, it boots normally.
It also boots normally if the drives are disconnected or connected to USB2 ports.
The strange thing is that I have another drive of the same model formatted on OMV which boots fine in both USB3 and USB2 ports.
I've have not changed the bios settings since it was working.