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From: wlsmith@valve.heart.rri.uwo.ca (Wayne L. Smith)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Using IDE and MFM Drives together
Message-ID: <3224@ria.ccs.uwo.ca>
Date: 3 Jun 91 04:41:17 GMT
References: <1991May30.181823.55145@uvmark.uucp> <3200@ria.ccs.uwo.ca> <1991Jun2.045900.15627@msuinfo.cl.msu.edu>
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Organization: The John P. Robarts Research Institute, London, Ontario
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In article <1991Jun2.045900.15627@msuinfo.cl.msu.edu> draper@buster.cps.msu.edu (Patrick J Draper) writes:
>Set
>the BIOS type on the primary MFM drive to what it's supposed to be, and
>the second hard disk bios setting to NOT INSTALLED.

I thought that IDE controllers needed the bios info.  If you set the 2'nd
drive bios info to -NOT INSTALLED-, how does the IDE controller/drive
know what's going on?  How does the computer know what's going on?

>It also requires that there is ONE partition on the MFM drive, as the
>IDE will take the letters D:, E:, etc.

When I had an RLL / SCSI combo going, I found that the partitions were
interleaved, ie the SCSI responded with C, E, G... and the RLL had the
D, F, etc.  Just what determined that (bios or DOS or something else)?