Date: Wed, 12 Jan 2000 19:16:21 +0100 From: "Roberto Nunnari, AGIE" <roberto.Nunnari@agie.ch> To: Mike Smith <msmith@freebsd.org> Cc: freebsd-small@freebsd.org Subject: Re: minimum HW requirement Message-ID: <387CC4F5.FAB08644@agie.ch> References: <200001121643.IAA02293@mass.cdrom.com>
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Mike Smith wrote:
>
> > Hi there.
> >
> > I'd like to use picoBSD in an embedded system with very
> > small resorces. It should be a 386 with just 1 or 2 Mb RAM.
> >
> > The system is a deeply embedded one, with no networking, nor
> > graphics, sound, TCPIP, etc...
> >
> > All it needs would be a multitasking kernel, message queues,
> > semaphores, pipes, memory management, I/O system,
> > parallel port, and a couple of serial ports.
> >
> > I'd like to know how hard scaling down picoBSD to fit these
> > constraints would be.
>
> "How long is a piece of string"? Seriously, without knowing what
> resources or experience you have available, all that can reasonably be
> said is "yes, it's possible".
>
> There's at least one product I'm aware of using a cut-down FreeBSD on a
> 386ex in 2MB of RAM. I think that still has networking in the system too.
>
I'm used to work with OSs that you can scale down very
easily just running a configuration utility or editing
some configuration files. There you can choose the
functionality you want to include in your OS and what
you don't want to include. I never tried to scale down
a unix system even though I have a good basilar understanding
of unix OS architecture.
The question is:
- can you just work on the configuration files and choose
what to include in picoBSD and what not or you have to go
deep into the OS code?
- if not, will something similar (configuration utility) be
included in FreeBSD 4.0 or later?
I just have a FreeBSD 3.2-stable PC I'm playing with and
as I very much like it and came across picoBSD, thought I
could set it up as my development platform for a project of
mine.
I was really too much in a hurry when I posted that message,
but the question wasn't how long will it take. What I meant
(which probably is different from what I said) is that I would
be grateful for any hints/links/advice/experiences from the
FreeBSD community on scaling down picoBSD.
Best regards.
--
Roberto Nunnari -software engineer-
mailto:roberto.nunnari@agie.ch
AGIE - http://www.agie.com
Via dei pioppi 16 tel: +41-91-8069138
6616 Losone """
Switzerland (o o)
=======================oOO==(_)==OOo========================
MY OPNIONS ARE NOT NECESSARELY THOSE OF MY EMPLOYER
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