[Coco] [Bulk] Reading Osk disks

[Bob Devries]

There are slight differences between the Coco RBF disk format and the OSK 
one.
For a start, in the directory entries, the names are just 28 characters 
long, and the lsn pointer is 4 bytes. There are other differences, too, I 
believe.

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Joel Ewy" <jcewy at swbell.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Saturday, September 08, 2007 1:37 PM
Subject: Re: [Coco] [Bulk] Reading Osk disks


> Paul Fitch wrote:
>> Theres a bunch of utilities that good or bad, at least try to alow a PC 
>> to
>> read DECB or OS9 disks.  Is there something like that to read OSK disks?
>>
>>
> I believe that the OS-9/68K RBF formatted disks are the same as CoCo RBF
> disks -- assuming you have the device descriptor set up the same way
> when you format.  I can format a 3.5" floppy disk to 720K on a CoCo 3
> and put it in the MM/1.  With an appropriate device descriptor (or using
> the DMODE utility) I can read the disk.  So assuming you have all the
> vital stats on the particular OS-9/68K disks you are trying to use, and
> assuming you have a utility on the PC that will read (CoCo) RBF disks
> and isn't hard-coded to some particular sector, density, and track
> format, you should be able to read them.
>
> If your AT306 works, and your utility on the PC to read CoCo OS-9 disks
> can't be massaged to comprehend the AT306' format, you should be able to
> use DMODE on the '306 to format a CoCo compatible floppy, and then read
> that on the PC.  Also, I have a FAT file manager on the MM/1 (I don't
> remember whether it's called MSH or PCF) that allows OS-9 to read/write
> DOS FAT disks.  If you have that file manager, you could copy your OS-9
> goodness onto a PC disk straight on the '306.  If you do that, I would
> recommend archiving the files first -- both to save space and to avoid
> munging the file names with 8.3 evil.  Just make sure you use an archive
> util that you can uncompress on the PC.  lha or gzip are likely 
> candidates.
>
> JCE
>> I've been playing with the PC OSK emulator, OS9exec_338.  I downloaded a 
>> pd
>> shell and a bunch of off the web OSk cmd files, but don't have the basics
>> like ATTR or MDIR.
>>
>> I just got my AT306 and it comes with five 1.44 meg floppies just chock 
>> full
>> of stuff to play with, but I can't get the disk contents into the PC. 
>> The
>> OSK machine is not running yet, and even if it was, theres no friggin 
>> serial
>> port on the PC machgine<g>.  That will be addressed in the near future, 
>> but
>> for now, how do I get the PC to read these disks?
>>
>> --
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>>
>>
>
>
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