Subject: Re: I'm happy with my new uVax, but ...
To: Michael Kukat <>
From: Puroguramma San <>
List: port-vax
Date: 06/14/1999 17:30:09
On 14-Jun-99 Michael Kukat wrote:
> Hi !
>> This sounds like something more up my alley (written some pc bootloaders and
>> such) I can get access to a couple of DECservers without much problem. If I
>> am
>> remembering right they are only capable of a max of 19.2Kbps (great for a
>> terminal room but not much for a dialin server.) I do know that they mop
>> boot
>> so maybe a mini version of IOS? I guess it is time to liberate one from the
>> stockpiles and see about getting it up and booting :) Anyone have any handy
>> info to get me started with ? Like maybe the mop file format ?
> The DECserver 200/MC which i have, does the bootstrap from my Linux box
> running "mopd", as all the VAXen do. This type of terminal server has
> modem control lines (the /MC means that), and if i remember right, it can
> drive up to 38.4 KBps. Too less for 8 33.6KBps-modems, but enough to
> control a pile of VAXstations with a VXT 2000+.
> The original file "PR0801ENG.SYS" only knows about LAT, a DEC proprietary
> protocol, so you need either VMS or other hardware being able to handle
> LAT services.
> I was planning to write a little OS for it knowing of TCP/IP to put those
> 8 ports onto TCP port 3001-3008 and a port 3000 for configuration or such
> stuff, but i have absolutely no hardware info. A stripped NetBSD- or
> minix-kernel would do nice jobs here.
> CPU is a MC 68000 with 8 MHz, and i think it had something of 256 KB RAM.
> That's all i know about it, if you need the bootfile (copyrighted
> software), it can be found somewhere  on a Ultrix/VAX CD-ROM, and i have
> seen it on some ftp-server with FTPsearch (, just
> enable "case insensitive glob search" and enter "pr0801eng.sys", if you
> are lucky, you can still find it :-)
> so long... michael
I will look for the bootfile :) I just grabbed a 200MC and i have a bit of 68K
ASM programming under me belt :) I was thinking of making a tiny terminal
server os that woudl let you telnet ETC from the terminal ports but i guess i
could make it go bi-directional or make just 2 slightly different kernels for
it :) Well i will let y'all know if i find anything more out about it... just
hate to break that no decompiling clause :(

E-Mail: Puroguramma San <>
Date: 14-Jun-99
Time: 17:26:37

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