[Coco] I'm missing something obvious

[Bill Pierce]

Ed, Nitros9 will only access about a 128meg drive (max) with a cluster size of 1 (24 bit offset limit). To do the 1 gig drive, you're either going to have to break it up into 128 meg partitions, OR set a larger cluster size. I run 2x4gig partitions on my Coco3 with cluster sizes of 64. It's kind of tricky but there's a basic09 program that glenside put together for their IDE controllers that will help with the math. 
Here's a link to the disk, the file you want is "makedesc.b09" (load runb & syscall first).
Since you're not working with a GS IDE or vanilla OS9, it will not "make" the descriptor and will error near the end, but before it errors, it will give you all the info you need. Just answer the prompts and jot down the results. The text files give a lot of good info. I've been meaning to update this for NitrOS9 and superdriver, but my Coco is down so I haven't bothered.

https://dl.dropboxusercontent.com/u/23059963/Stuff/Glenside%20IDE.dsk

 
You will need to add parameters to the format command once you get the descriptor set... Since it's aggrevating to find, here's the syntax for format:

Syntax: Format <devname>
Usage : Initializes a NitrOS-9 diskette
Opts  :
  R   - Ready
  L   - Logical format only
  "disk name"
  1/2 - number of sides
  'No. of cylinders'   (in decimal)
  :Interleave value:   (in decimal)
  /Cluster size/       (in decimal)

If your descriptor is set right, the only 'extra' you need to add is cluster size:

format /XX "My Drive" r /xx/
(xx=cluster size in decimal)

This is how I formatted my 4 gig drives. The partitions are a little more complex, but if you need that info, email me :-)

Hope this helps!

 


Bill Pierce
"Charlie stole the handle, and the train it won't stop going, no way to slow down!" - Ian Anderson - Jethro Tull

 

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-----Original Message-----
From: Ed Orbea <ed.orbea at gmail.com>
To: CoCo (Maltedmedia) Mailing List <coco at maltedmedia.com>
Sent: Wed, Jan 13, 2016 9:50 pm
Subject: [Coco] I'm missing something obvious

I was able to obtain a couple of 1gb CF cards for use in my SuperIDE in myCoCo3. I do have several SDC pack that work very well, so this is more of a‘wanting to explore’ type of thing.I have done these steps to try to use these cards.1) Run the IDEPROBE.BAS program which says the CF cards have thisconfiguration:1966 total cylinders; 16 heads; 63 sectors per cylinder, 1,981,728 totalsectors and the card supports LBA mode.2) Run the WIZARD.BAS program and provide these inputs: base address FF50,total sectors 1,981,728, 512 bytes per sector, 256 HDB virtual drives andLBA mode. The output is: OS9 capacity 888.89mb, HDB capacity 78.75mb, withan HDB offset of: 1BC7203) I create the ROM and the BIN file via the WIZARD.BAS program4) I flash the ROM image into bank 2 of the SuperIDE5) Reboot the system using the SuperIDE and enable floppy drives (POKE&HFF7F,3)6) Use the FMTALL.BAS program to format all 256 virtual drives7) Create a 6809 Level II, NitrOS-9 3.0.0 35 track SSSD floppy and copythat disk to drive 2558) Run LINK.BAS to link drive 2559) As /i0 is not yet formatted, I use an 80 track DSDD disk to boot intoNitrOS-9. The DSDD has RBSUPER, DD_I0, etc10) When I execute dmode for /I0 it shows: nam=I0, mgr=rbf, ddr=rbsuper,hpn=07, hpa=FF50, drv=00, stp=00, typ=81, dns=00, cyl=007F, sid=40, vfy=01,sct=0020, t0s=0020, ilv=01, sas=10, wpc=00, ofs=0000,rwc=00So the information from dmode does not match the size of the OS9 drive.Thus my question is what /I0 setting do I need too change via dmode?+----------------+*Ed Orbea*Poulsbo, WA-- Coco mailing listCoco at maltedmedia.comhttps://pairlist5.pair.net/mailman/listinfo/coco