I booted the system in TAILS.
Found the Dom0 partition as per the instructions here: How to mount a Qubes partition from another OS | Qubes OS
Found /var/lib/Qubes/qubes.xml in Dom0.
Ran in TAILS lspci and found that SATA is: id="00_1f.2
Found the line that had 00_1f.2, and that was under sys-usb.
I deleted that line.
Rebooted the system.
It worked.