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- Newsgroups: comp.os.linux
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!jvnc.net!primerd.prime.com!tiger1.prime.com!cummings
- From: cummings@tiger1.prime.com (Kevin J. Cummings)
- Subject: Re: Minimum requirements for linux - just to run single user
- Message-ID: <1992Sep2.141634@tiger1.prime.com>
- Keywords: Minimum requirements
- Sender: usenet@primerd.prime.com (Usenet)
- Organization: Prime Computer, Inc.
- References: <data.715303501@cs1.bradley.edu> <1992Sep1.135811@tiger1.prime.com> <data.715428938@cs1.bradley.edu>
- Date: Wed, 2 Sep 1992 18:16:34 GMT
- Lines: 86
-
- In article <data.715428938@cs1.bradley.edu>, data@cs1.bradley.edu (Mark Hall) writes:
- > In <1992Sep1.135811@tiger1.prime.com> cummings@tiger1.prime.com (Kevin J. Cummings) writes:
- >
- > >Er, Ah, is it a SigmaSigma step chip? or does it have the infamous task switching
- > >bug in it? If its a REALLY old 386, you may not be able to use it.
- >
- > I am not aware of a task switching bug...:) I've run Desqview with no
- > problems. I just don't like it. :) SigmaSigma step chip? I am not familiar
- > with that.
-
- There was a bug in the early 386 processors (someone will correct me, I'm sure,
- if I don't get the little details right) that caused a problem in protected mode
- (so DOS users never saw it!). I thought it was related to task switching, but
- it might have been related to to the floating point co-processor. Intel fixed
- the bug in a version of the 386 they called the SigmaSigma step. Look at your
- 386 ship. If it has 2 Sigmas on it, you have the fixed version. If you don't,
- and you have an OLD chip, then you potentially will have problems running that
- ship in protected mode. After the SigmaSigma chip, Intel started in with the
- DX/SX naming convention. I would be wary of any non-xX 386 without the SigmaSigma
- printed on it for protected mode applications.
-
- > >> ram. (Ok...You can stop laughing now... :) Should I assume that ...
- > >Whose laughing? My Dad has my old 16MHz 386 DX with 1MB of RAM. 640K conventional
- > >and 384K extended? Do you have ANY extended memory? Or is it configured as
- > >BIOS shadow RAM?
- >
- > No. I have NO extended. Just conventional 640 K. Really sucks.
-
- Bummer. Sounds like a 286 (or 8088) motherboard minimally extended to support
- a 386 running DOS, period. How bogus! (Don't feel too bad, I GAVE my 16MHz
- 386 to my Dad because it would have cost me $800 to upgrade from 1MB to 4MB
- of memory (with NO chance of ever upgrading beyond that. Instead I bought my
- 25MHz motherboard for $1300 (with 4MB of ram!). Then memory prices started to
- fall.)
-
- > >> Linux? I'm hoping to be able to upgrade to at least 2 megs sometime, but am
- > >In order to upgrade a 1MB 386 to 2MB, you have to be able to add in 4 banks of
- > >256K memory. 386 memory must be 32 bits wide unless you have an SX system,
- > >in which case it must be 16 bits wide. Since most memory banks are 8 bits wide,
- > >you either need space for another 4 banks on your motherboard or on a 32bit
- > >memory card. If you only have space for 4 memory banks, then you will need
- > >to upgrade them from 256K chips to 1M chips, increasing your memory from 1MB to
- > >4MB.
- >
- > Not sure what my chips are. I'll probably just buy a 32bit expansion card.
- > There's no room on the motherboard for expansion (my motherboard is just a
- > bus) and the memory is a card...Stupid...Same for Processors, and I/O stuff.
-
- Sounds a lot like my old S-100 machine B^).
-
- > >> D*mn. Mem swap error (or something like that).
- >
- > >Sounds like 1MB is too little memory. I have heard of people running in 2MB
- >
- > Yeah...I found out in the FAQ (somebody was nice enough to mail it to me...:)
- > Thanks! that it requires 2M just to boot. ALso, several people have made
- > suggestions on the amount of memory and HD space to make available to linux.
- > I've got a rough idea of the system I need to do that...:)
-
- Ted's message says there might be hope if you had as little as 384K of extended
- memory. Sounds like you're SOL. Sorry.
-
- > >on 386SX processors. Just be sure to configure a swap partition (4-8MB) to
- > >get you running. As long as there is sufficient memory to run the kernel in,
- > >swap space will look like paged virtual memory to your system, and it will
- > >manage it for you. I have 4MB ram, and 10MB swap. I haven't run out of memory
- > >yet. I suspect you could run with 2M ram and 4 MB swap, but it would be slow.
- > >(Lots of disk accesses I suspect.)
- >
- > Probably. Couldn't be worse than on our AT&T 3b2 (ugh! :)
-
- Oh yeah, I've heard of those machines! There the ones that ran out of clock bits
- for the year in 1992! Great foresight in hardware design!
-
- =================================================================
- Kevin J. Cummings PrimeService
- 20 Briarwood Road A Computervision Company
- Framingham, Mass. 500 Old Connecticut Path
- Framingham, Mass.
- Work: cummings@primerd.Prime.COM
- Home: cummings@kjc386.framingham.ma.us
-
- Std. Disclaimer: "Mr. McKittrick, after careful consideration,
- I've come to the conclusion that your new
- defense system SUCKS..." -- War Games
- =================================================================
-