Lloyd, thanks very, very much. That version of scsi.device does the job, and now I'm running with NOROMUPDATE on the setpatch line. It does shave a small amount of time from bootup.
I've learned some stuff here that explains to me why I can't get my SCSI port on my 1200 working. I forget which SCSI expansion it is, but I think it was by the Dataflyer people. It plugs into the IDE header and allows five SCSI devices and two IDE devices. I can't get it working with OS 3.9, and that's why I no longer have a SCSI CD-ROM attached to my 1200.
I think it must patch scsi.device to make it work, but I'm relying on the newest OS setpatch to patch scsi.device to allow larger hard drives. When I was fighting this I was trying to do it by skipping the romupdate for scsi.device, which caused problems with the hard drive.
Oh, well. The 1200 is OK without a CD-ROM drive since it is on the network with a PCMCIA card. Now to get file sharing working...