Thanks Thomas and Coze.
Yep, the drive don't show up. I think this happened due the lack of an install disk...
Will try "sysinfo" the Amiga.
The drive is self-terminated and unique (so no need for terminators). But I have a pair of T1 and T2 here (no one of them resembles Arnie...). Active and passives (hmm... gay!).
Since the controller use a NCR53C80 (no jumpers inside the case), I think the "9.1Gb HD + ROM code" combination could be the problem. :-/