Re: [Freedos-user] Cobalt - my FreeDOS distribution

[Steffen Grunewald]

On Mon, Feb 01, 2016 at 11:11:22PM -0500, Corbin Davenport wrote:
> Hello all,
> 
> I wanted to share a FreeDOS distribution I released today, called Cobalt.
> Cobalt is a free operating system heavily based on FreeDOS, that aims to
> make using DOS much easier. This is mostly done by having over a dozen DOS
> utilities and drivers pre-installed, making it a much more complete
> operating system out of the box.
> 
> Some of the programs included are 4DOS, CuteMouse, DOSLFN, DOSIDLE, HIMEM,
> and more. It also has it's own installer, and can optionally add the
> FreeDOS Shell at installation.
> 
> I've been testing it in VirtualBox and it works pretty well, but I would be
> interested in hearing feedback from others. You can get Cobalt as a
> bootable CD image here  
> and
> more information is available here
> .
> 
> Corbin

Does Cobalt come with network support? Would make it very interesting...
How large would its disk footprint be? I'm looking for something that could
be PXE'd...

Thanks,
 Steffen

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Re: [Freedos-user] very small FAT12 partition?

[Steffen Grunewald]

On Sun, Jan 24, 2010 at 02:48:13PM +0100, Stefan Xenon wrote:
 Hi!
 My question is not exactly FreeDos related but I hope that you could
 help me anyway:
 
 For an embedded project I need to create a very small FAT12 partition.
 In a proprietary project I found a partition of 4KB size (which I can
 not reuse because of license issues) but could not manage to recreate a
 similar one. Therefore on Linux I tried mkdosfs -f 1 -F 12 -h 0 -S 512
 -C partition.iso 4 but it fails with the error message that this
 partition is too small. The smallest I could build this way was 34KB in
 size.

This may be a bit tricky, and require the use of non-standard tools, but
in theory it should be possible.

Don't forget about the general structure of floppy-based FAT filesystems.
You need:
- a boot block (MBR) containing a valid description of the FS (number and
size of FAT[s], CHS geometry, etc. - not all of which can be tuned
using standard tools probably) - BIOS Parameter Block is what
you want to look for (and compare against actual values in a
standard size floppy image)
- one or two FATs (starting with the magic code), big enough for your *data*
blocks
- a root directory (size also fixed in boot block!)
- space for your data (and perhaps sub-directories which are data blocks
themselves)

Apologies for being a bit vague, but I didn't use such stuff for a while,
but I've written down some details ( my notes are at home, unfortunately).


Steffen

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Re: [Freedos-user] Changing the DOS timer resolution.

[Steffen Grunewald]

On Fri, Feb 08, 2008 at 10:54:35AM +, Simon Townsend wrote:
 Hi,
 Is a way of changing the DOS timer (the one that is about 1/18th seconds) 
 either within DOS or from a C program?
 I'm trying to use Freedos to run a PCI serial board so I can do some DMX 
 controls and need some timed pauses. 
 
 Not sure what its called exactly - DOS talk is not yet very familiar to me :-)

If I remember correctly the counter-timer chip (CTC) has more than one 
clock generator (about 20 years ago, for some crappy memory, I had written
a refresh accelerator). Since other functionality relies on proper timing
as well, it's a bit tricky to speed up/modify the system clock (you'd
have to pass only every n-th tick through to keep the clock synced with
the wall clock).

I'd have to dig for the old source codes, and yellowed pages of hw docs...

Steffen

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Re: [Freedos-user] Printing to a network printer....

[Steffen Grunewald]

On Mon, Oct 01, 2007 at 01:02:50PM +0200, Mateusz Viste wrote:
 On Monday 01 October 2007 11:17, Robert Riebisch wrote:
  Then try NCSA lpr, WATTCP lpr, or CUTCP.
 Well... I guess LPR/LPQ/LPRM etc... are usefull when printing to a printer 
 attached to a Linux/Unix PC. My printer is a _stand-alone_ network printer 
 (it doesn't require a PC to work, it has its own IP, etc...). I doubt network 
 printers supports LPR protocol... There is the JetDirect one for them (that 
 is printing to their TCP/9100 port just like it would be a Centronics 
 connection).

Well, you could just try and find out, using nmap or another port detector.
Actually, quite a lot of printers (in particular those with port 9100 open)
*do* accept lpr (look for port 525=lpd)

Cheers,
 Steffen

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[Freedos-user] Looking for a lightweight TCP/IP stack

[Steffen Grunewald]

Hi,

we're looking for a very lightweight TCP/IP stack on top of FreeDOS.
We only need basic DHCP functionality (to tell the client its own IP,
and the one of the server) and TFTP to transfer a single file in both
directions. The goal is to enhance BIOS flash floppy images ...
Any recommendations/recipes/pointers at pre-built software? we *are*
aware of wattcp/watt32 but think it's already too big - at least the
stuff should fit onto a 2.88MB ED floppy, with the BIOS stuff that's
already 1.44MB.

Cheers,
 Steffen

-- 
Steffen Grunewald * MPI Grav.Phys.(AEI) * Am Mühlenberg 1, D-14476 Potsdam
Cluster Admin * http://pandora.aei.mpg.de/merlin/ * http://www.aei.mpg.de/
* e-mail: steffen.grunewald(*)aei.mpg.de * +49-331-567-{fon:7233,fax:7298}
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Re: [Freedos-user] FreeDOS auf einer USB-Festplatte (written in German)

[Steffen Grunewald]

On Thu, Oct 19, 2006 at 12:56:32AM +0200, Michael McStarfighter wrote:
 (sorry guys, I write it in german...)
 
 Hi,
 
 sorry, daß ich in Deutsch schreibe, aber ich will das Problem sauber
 rüberbringen und auch die Lösungen verstehen.
 
 Ich versuche seit Wochen, FreeDOS auf eine USB-Festplatte zu installieren.
 Aber die CD sagt mir relativ schnell InitDisk Illegal relocation entry und
 kommt mir dann auch noch mit Invalid Opcode und ne lange alphanumerische
 Reihe, dies aber alles nur, wenn ein USB-Stick oder ein USB-HD
 dranhängt. Und das war es dann aber auch schon mit dem starten der CD. Die
 F8-Taste bringt mir auch nix. Und wenn ich aus ner VMware-Installation nen
 Klon auf meine USB-Festplatte lege, bootet die Platte zwar, endet aber immer
 mit der Meldung Bad command line interpreter, obwohl der Pfad, der
 angezeigt wird, paßt.
 Ein Diskettenlaufwerk steht mir mit meinem aktuellen Notebook nicht mehr zur
 Verfügung und es ist USB 2.0 (bootfähig). Falls es hilft: Es ist das
 Hewlett-Packard dv4358ea (das Datenblatt findet man per Suche auf der
 HP-Seite).
 Ich habe auch versucht, es mit dem HP Format Utility zu versuchen, aber der
 nimmt meine USB-Platte nicht an, wenn ich die DOS-Dateien drauflegen will
 (MS-DOS files are not compatible with FAT32). FAT16 kann ich leider nicht
 mit ner USB-Platte nehmen. Mit meinem USB-Stick habe ich es geschafft, aber
 der bleibt beim Booten immer bei den Worten FreeDOS hängen. Mehr zeigt er
 nicht an und tut dann auch sonst nix.

sorry for replying in English :-

if the pure existence of an USB storage device is enough to confuse your system
in a way that a CD doesn't boot anymore I'd look for BIOS settings and/or BIOS
upgrade.
You might also consider running a memtest86+.

We had some very strange behaviour with another type of machine, resulting in
a frozen system if there was no PS/2 mouse attached - it was fixed by a BIOS
upgrade (memory page reservation was off-by-one)

 Für Hilfe bin ich echt dankbar, da ich langsam durchdrehe...

DON'T PANIC.

S

-- 
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Cluster Admin * http://pandora.aei.mpg.de/merlin/ * http://www.aei.mpg.de/
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[Freedos-user] tftp client for freedos?

[Steffen Grunewald]

I'm looking for a TFTP client that runs under FreeDOS - and of course the
matching TCP/IP stack.
First investigations showed me that MSClient would not offer a TFTP client
(and apparently there is none written by a third party); for WatTCP (not the
32 bit version) the same holds; there are no precompiled versions of Watt-32
(and I cannot afford to do it myself, being limited to floppies at the
moment).
There has been one TFTP client coming with Wollongong's Pathway back in 1992
- does this company still exist?
Since I only have to send a fake TFTP RRQ to a machine I got DHCP from, 
I've also been thinking about netcat. But is there a netcat for pre-WIndows?

Suggestions are welcome...

Cheers,
 Steffen
-- 
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Cluster Admin * http://pandora.aei.mpg.de/merlin/ * http://www.aei.mpg.de/
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Re: [Freedos-user] tftp client for freedos?

[Steffen Grunewald]

On Fri, Sep 08, 2006 at 04:34:24PM +0300, Cristi Mitrana wrote:
 On 9/8/06, Steffen Grunewald [EMAIL PROTECTED] wrote:
  I'm looking for a TFTP client that runs under FreeDOS - and of course the
  matching TCP/IP stack.
  First investigations showed me that MSClient would not offer a TFTP client
  (and apparently there is none written by a third party); for WatTCP (not the
  32 bit version) the same holds; there are no precompiled versions of Watt-32
  (and I cannot afford to do it myself, being limited to floppies at the
  moment).
  There has been one TFTP client coming with Wollongong's Pathway back in 1992
  - does this company still exist?
  Since I only have to send a fake TFTP RRQ to a machine I got DHCP from,
  I've also been thinking about netcat. But is there a netcat for pre-WIndows?
 
 
  I have a wattcp tftp client found wandering on old DOS sites. I
 recall I needed a ltsp client for a small boot disk I haven't found a
 precompiled bimary anywere on the net.
  You can find it at
 http://www.upload2.net/page/download/byIqIjeyCaoh2wV/tftp.zip.html

Sorry, cannot access it ... will retry later.

Thanks
 S

-- 
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Cluster Admin * http://pandora.aei.mpg.de/merlin/ * http://www.aei.mpg.de/
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