[Coco] Format D2 80dd

[Barry Nelson]

For other on the CoCo list that won't get my screen shot…

Image Type: JVC
Tracks: 80
Double sided: checked

On Sep 27, 2015, at 10:57 PM, Barry Nelson <barry.nelson at amobiledevice.com> wrote:

> Also, be sure to set these options when you create a new image in VCC that you wish to use as 80 track double sided…
> 
> <Screen Shot 2015-09-27 at 10.54.46 PM.png>
> 
> On Sep 27, 2015, at 10:49 PM, Barry Nelson <barry.nelson at amobiledevice.com> wrote:
> 
>> I noticed you said floppy "image". I am guessing that you are formatting either a floppy image on an emulator such as VCC, or an image mounted on a DriveWire server. I will outline the procedure for these cases below. To format a real 80 track double sided floppy, you would use slightly different options so that that controller would do a low level track and sector format. That is not required or desirable on an emulator or DriveWire. These instructions are also written for NitrOS9. Microware OS-9 is slightly different.
>> 
>> At the prompt to format /d2 as an 80 track double sided image, do this:
>> dmode /d2 sid=2 cyl=50 sct=18 t0s=18 typ=20 dns=2
>> format /d2 R L 2 '80'
>>       NitrOS-9 RBF Disk Formatter
>> ------------  Format Data  ------------
>> 
>>       Floppy Disk Format: CoCo
>>     Physical floppy size: 5 1/4"
>>            Sectors/track: 18
>>      Track zero sect/trk: 18
>> Total physical cylinders: 80
>>             Track Offset: 0
>>            Sector Offset: 1
>>  Minimum sect allocation: 8
>>         Recording format: MFM
>>     Track density in TPI: 96
>> Number of log. cylinders: 80
>>       Number of surfaces: 2
>> Sector interleave offset: 3
>> 
>> Formatting device: /d2
>> Disk name: Enter the disk name here
>> 009F
>> Number of good sectors: $000B40
>> 
>> Your disk image is now formatted and ready to use with NitrOS9. It will have a capacity of 720K.
>> 
>> 
>>> Plt at freemail2.com plt at freemail2.com 
>>> Sun Sep 27 22:13:20 EDT 2015
>>> Do you mean démode /d2 and what setting should it be please?
>>> 
>>> 
>>> Phil Taylor
>> 
>