*BSD News Article 56558


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From: raub@kushana.aero.ufl.edu (Mauricio Tavares)
Newsgroups: comp.unix.bsd.netbsd.misc
Subject: Re: NetBSD on a Mac SE?
Date: 4 Dec 1995 02:43:53 GMT
Organization: Mostly Harmless
Lines: 37
Message-ID: <49tn99$1ok@huron.eel.ufl.edu>
References: <49m0u3$lvl@huron.eel.ufl.edu> <MICHAELV.95Dec2231953@MindBender.HeadCandy.com>
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In 03 Dec 1995 07:19:53 GMT, Michael L. VanLoon (michaelv@MindBender.HeadCandy.com) wrote:
> In article <49m0u3$lvl@huron.eel.ufl.edu> raub@kushana.aero.ufl.edu (Mauricio Tavares) writes:

> 	   I have recently saved from the dumpster one of those old Mac SEs
>    (14MHz 68000).  Knowing that its max onboard RAM is 4MB and provided I
>    had a large enough hard drive, would the Mac port of NetBSD run on such
>    beast?

> Actually, it's a 16MHz 68000.  And, I could be mistaken, but I believe
> it maxes out at 8MB of RAM (at least the SE30's did).

	Was it 16MHz?  Oh well, I never really bothered that much; the
poor beast is in my closet waiting to become useful once more. =)

> But, no.  It is impossible to run a modern unix on a 68000 processor
> without lots of black magic hardware (which wouldn't be supported,
> anyway) to make up for the fact that the 68000 has no memory
> management unit, and absolutely no support for adding one.  This would
> be akin to trying to run unix on a PC with an 8088 in it.

> You must have a minimum of a 68020+PMMU, or a 68030 (which has the MMU
> built in).  Just like you need a minimum of a 386 in a PC.

	I see.  It would really be interesting to have that beast
running Unix though.  I would then leave in in my desk in the Aero
Department, connected to the department's ethernet of course, with a
note saying "Unix Box thinking.  Do not disturb" in large, friendly
letters. =)

	Someone suggested me to try Minix.  I will think about that.  In
the mean time, that SE will stay in my closed sucking dust.

 ===========================+=============================================
| Mauricio Tavares          | "We will attack...                          |
| raub@kushana.aero.ufl.edu |  ...under the cover of daylight!" Rimmer    |
 ===========================+=============================================