From: jepstei@afterlife.ncsc.mil (John Epstein) Subject: Re: [Q]: Kernel recognition of IDE/MFM combo? Date: Sun, 11 Apr 1993 14:01:22 GMT
In article <1q82c4INNr6m@lynx.unm.edu> firehawk@centauri.unm.edu (-* FireHawk *-) writes:
>In article <lsehufINNqki@agave.cs.utexas.edu> danielsi@cs.utexas.edu (Daniel Aaron Supernaw-Issen) writes:
>:hey all, got a question.
>:I got myself an ide controller/disk and an 8-bit mfm controller/disk.
>:I want the two to co-exist peacefully. Linux is on the ide.
>
>Would there be a way Linus could just have the kernel check for stuff like this?
>DOS seems to have no problem acknowledging the two different drives but Linux is
>braindead to the IDE controller. Is is possible that the kernel could also
>check port addresses 170-177 (the secondary port address) and BIOS locations
>C800 and CA00 to find the second controller? What does DOS do in finding the
>second controller that Linux can't? There are apparently quite a few people
^^^^^ DOS polls for second controller on
secondary address --- atdisk does interrupts on both controllers ---
DOS is NOT an operating system.
I used to run RLL (16 bit as C:) and IDE with re-initialization BIOS
as polling on D:
Daughter (green@world.std.com)
now runs fine with IDE as C: and RLL as D: (unavailable to DOS)
>out there who have similar setups. This type of question keeps comming up to
>to this newsgroup but there is never any real answer. =( Would atdisk resolve
>this? I would test it but I don't have the disk space nor the time to wait
>for a kernel recompile. (I am using HJ's 0.99pl7a distrib mixed with SLS =).
>
>-Cheers! =)
>
>--
>INTERNET: firehawk@carina.unm.edu
John