[comp.os.minix] Minix in ROM

zs04+@andrew.cmu.edu (Zachary T. Smith) (02/15/89)

I'm considering porting Minix to one of two machines, only one of
which exists as of yet;  the first is a Sharp laptop XT, and if I liked
the port enough, I'd put in an EPROM-disk, which that mahcine supports.
The other machine I'm considering is a port to a vanilla 68000 homebrew
whose design I am still playing with, most likely to reside in EPROM.

My questions are:

First, has anyone ported Minix to the Sharp-4501 or 4502, and if so, how
large was the final executable program, total?  Indeed, how large is ANY
port of Minix to an 8088/x86 PC?

Second, how much code could I expect for a port to a 68000-class machine?

Any help appreciated.... zts

ianf@nada.kth.se (Ian Feldman) (11/20/89)

  What with recent proliferation of "notebook" and smaller-than-laptop
  computers has anybody given a though to implementing Minix, or most
  of it, in a drive-less environment?  I'm thinking mainly of products
  like NEC UltraLight, the Atari Portfolio and the Poquet, each with
  MS-DOS embedded in ROM.  In addition both NEC and Poquet claim ability
  to run suitably configured software directly from ROM-cards, without
  having to read the code into the RAM.

  So, a Poquet running Minix and a mail-shell and we're set for life...
  or at least until the telepax technology matures.

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pcm@iwarpr0.intel.com (Phil Miller) (11/27/89)

In article <2339@draken.nada.kth.se> ianf@nada.kth.se (Ian Feldman) writes:

>  What with recent proliferation of "notebook" and smaller-than-laptop
>  computers has anybody given a though to implementing Minix, or most
>  of it, in a drive-less environment?  I'm thinking mainly of products
>  like NEC UltraLight, the Atari Portfolio and the Poquet, each with
>  MS-DOS embedded in ROM.  In addition both NEC and Poquet claim ability
>  to run suitably configured software directly from ROM-cards, without
>  having to read the code into the RAM.

>  So, a Poquet running Minix and a mail-shell and we're set for life...
>  or at least until the telepax technology matures.



>------ ianf@nada.kth.se/ @sekth.bitnet/ uunet!nada.kth.se!ianf




Kind of hard to imagine MINIX being frozen in silicon at this point...


Phil Miller
pcm@iwarp.intel.com

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rbthomas@frogpond.rutgers.edu (Rick Thomas) (11/30/89)

> >  So, a Poquet running Minix and a mail-shell and we're set for life...
> >  or at least until the telepax technology matures.
> Kind of hard to imagine MINIX being frozen in silicon at this point...

However, the latest InfoWorld, (Nov 27, pg 27) has a big spread on "Flash"
Eprom chips from Intel and the non-volatile RAM-disk cards that have been
announced that use them.  A 4MB Flash-disk card for an AT (big enough
for Minix root, /usr, and some space for users' home directories) would cost
about $2600 at the prices quoted in the article.  Chip prices are
currently kinda high, but they will almost certainly come down as the
manufacturers ramp up production.  Assuming that the same 4MB would
retail for under $1000 by this time next year, a lap-top Minix machine
with a built-in modem becomes a very real possibility.

For another example, there is a 4.3 pound MS-DOS compatible machine
from Psion that uses Flash RAM as a substitute for floppy disk.  It
runs for up to 30 hours on a set of 12 AA batteries (no moving parts
to soak up power, dontcha know...).

Interesting...

Rick