[Coco] Newbie NitrOS-9 questions

[Bill Pierce]

Stephen, try dir /X1.
"/d0" - "/d3" are real floppy disk descriptors, not DW4 descriptors. 
The DW descriptors are "/X0", "/X1", "/X2", & "/X3" and if you're booting from a DW disk, then "/X0" was probably replaced with "/DD".
If you are trying to "format" a floppy disk image using the DW, then it will try to format it as a large hard drive. These descriptors are set for some oddball size (??).
To make it format as a floppy, you must either use "dmode" and change the descriptor or set the parameters for format to see the proper size drive.
On my Coco 3 system, I have all my "/Xx" desciptors set for the same size that VCC origially used ($5A000) so I can move VHDs between my Coco and VCC as I use both the Coco and Vcc for software developement and switch VHDs quite often.

Just so you'll know.. The naming convention used by NitrOS9 for various types of drives are:
/D0, /D1, /D2, /D3 - real (or emulated) floppy disk drives
/H0, /H1 - Emulator hard drives
/I0, /I1, /Ih - Superdriver IDE, Glenside IDE
/S0, /S1, /S2, /S3, /S4, /S5, /S6, /Sh - TC^3, Superdriver SCSI
/X0, /X1, /X2, /X3 - DriveWire drives
/SD0, /SD1 - CocoSDC drive
/R0 - Ramdisk

/DD - is for "default drive" which can be assigned to any of the above which is determined by the type system you have and which bootdisk you use.

There are other "special" cases, but those are the main ones used in the NitrOS9 repository.
 

Bill Pierce
"Today is a good day... I woke up" - Ritchie Havens
 

My Music from the Tandy/Radio Shack Color Computer 2 & 3
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-----Original Message-----
From: Stephen Pereira <spereira1952 at comcast.net>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Sat, Feb 21, 2015 3:06 pm
Subject: [Coco] Newbie NitrOS-9 questions


Hello all,

I apologize up front for these newbie questions…

Now that I have my tricked-out CoCo 3 system, I want to try again with NitrOS-9.

My CoCo system is a CoCo 3 with a 6309 processor and the Cloud-9 Triad 512K RAM 
upgrade.  I am using an HDB-DOS cartridge, and I have Drivewire 4 for my storage 
system.

As before with my previous stock CoCo 3 (now my backup system) I can boot 
NitrOS-9.  Once in NitrOS-9, I can issue the mfree command and I get:

A    14000    1BFFF      4       32k
F    1E000    7BFFF    2F    376k

Total:                           32    400k

So, it looks like NitrOS-9 is seeing my 512K RAM just fine.

I can issue the cputype command, and I get:

CPU: 6309, running in 6809 mode.

Here come the newbie questions:

My prompt looks like this:   (Term:02)/DD:

I can issue a dir command and get the directory listing.  I can issue a dir 
./cmds  command, and see the contents of the cmds sub-directory.  HOWEVER, when 
I try to issue a dir /d1 or dir /D1 or dir /d2 or …  I get error messages like 
#216 or #240

I have both The Complete Rainbow Guide to OS-9 and The Complete Rainbow Guide to 
OS-9 Level II books, and they both start off with looking at different disk 
drives and formatting blank disks.  And here I am getting error messages when I 
attempt to look at virtual disk drives on my Drivewire.

What am I doing wrong?  I am using the same NitrOS-9 boot disk that I was using 
on my 6809 CoCo 3.  Is that it?  I thought that the 6309 would use the 6809 code 
fine.

Sorry for being a cry-baby with this.  Thanks very much for listening.

smp
--
Stephen M. Pereira
Bedford, NH  03110
KB1SXE


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