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Newsgroups: comp.unix.bsd.netbsd.misc Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!news.sprintlink.net!howland.reston.ans.net!Germany.EU.net!EU.net!sun4nl!cs.vu.nl!philip From: philip@cs.vu.nl (Philip Homburg) Subject: Re: x86 install problem. Nntp-Posting-Host: centaur.cs.vu.nl References: <3ra0lp$4ck@reuters2.mitre.org> <3rclca$jft@decaxp.harvard.edu> <3rhp7u$qs9@reuters2.mitre.org> Sender: news@cs.vu.nl Organization: Fac. Wiskunde & Informatica, VU, Amsterdam Date: Tue, 13 Jun 1995 11:17:36 GMT Message-ID: <DA3zDD.153.0.-s@cs.vu.nl> Lines: 29 In article <3rhp7u$qs9@reuters2.mitre.org>, Dean Cookson <dcookson@mitre.org> wrote: %In article <3rclca$jft@decaxp.harvard.edu>, %Aaron Brown <abrown@fas.harvard.edu> wrote: %>The Thinkpad 720 uses an internal MicroChannel architecture for its bus. % %Ah ha! This I did not realize. % %>From what I understand, none of the free UNIX's (including NetBSD) support %>microchannel machines. This is probably where the problem lies. % %Yup, that would do it then, wouldn't it. As far as I know, Minix runs on some MicroChannel machines. Minix contains only a very small amount of code that deals with the MicroChannel (most of this code is related to the level triggered interrupts). It might be possible to port this to *BSD. About a year ago I tried Minix-386vm on some Thinkpad 7xx (I don't know the exact model), and Minix thought it was running on a PS/2 with a MicroChannel but it turned out that the machine had a regular ISA bus! Philip Homburg