Well, first of all the 4070's not an MFM bridge adapter at all, but rather an RLL type. Before we proceed, though, I'd like to ask how the floppy fits in. The ACB4070 doesn't support floppy disks. LINUX doesn't care about the parity, IIRC. It's just the SCSI channel controller that has to be set up. It can either check or ignore parity, your choice, generally. In the case of the 2825, you need to type control-A at the appropriate moment during boot, and it will send you to the controller's BIOS for controller-specific functions. Where the trouble begins is in that modern SCSI drives know their characteristics, but the 4070 doesn't know what kind of drive it's got until it reads it. If it can't read it, it can't ask it for that data. The drive doesn't know either, until the 4070's formatted it. The controller's firmware formatter doesn't know how to TELL the drive/controller what's out there either, so you have to write your own formatter. That's not terribly difficult once you know the bridge controller and host adapter are talking. Unfortunately, I doubt the 4070 is smart enough to help you much. I've never used a bridge controller of any sort with the PC though I can't see any reason it shouldn't work. Now, the ACB40xx series isn't entirely true SCSI, and I have no idea how to make the typical modern host adapter "see" it. If you have specific questions, perhaps I can help you, but it's a big manual and I don't see myself scanning or copying it anytime soon. Dick -----Original Message----- From: B'ichela <mdalene(a)home.ctol.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, November 26, 1999 11:57 PM Subject: Re: Whats the screwiest thing you collect? few hurry