I'm trying to connect a SCSI HD to the Mac Plus, but for some reason, it's not recognizing it.

Actually, it's not even recognizing that the drive is connected.

Not even an old version of Silverlining will allow me to choose the disk and format it properly.

Is there some kind of trick to make a SCSI HD work with the Mac Plus?

I have 2 Mac Pluses, and both won't recognize all 4 SCSI drives.

I'll need an external HD (or an external Floppy Drive, which I don't have) to install System 6 from the installation disk. It's nearly impossible to install with only one floppy drive (endless disk swapping!)

Thanks