[Coco] error 249

[Gene Heskett]

On Saturday 18 March 2017 16:16:29 Bill wrote:

> Do I change the DNS or not?
>
> Here is the ENTIRE list as it comes from a FRESH boot:
>
> DMODE /D0
> nam=D0 mgr=RBF ddr=rb1773
> hpn=07 hpa=FF40 drv=00 stp=03 typ=21 dns=01 cyl=50 sid=02
> vfy=01 sct=0012 t0s=0012 ilv=03 sas=08 wpc= ofs= rwc=
>
That is correct for all 3.5" drives.

> That is it. The same setup is also set up for /d1. I am using 3 1/2"
> 80tk drives
>
> I did "ident -m rb1773", and our numbers match.
> I did "ident -m rbf", and again, our numbers match.
>
> This just leaves cleaning the heads on the drives.
>
> Thanks
>
> -----Original Message-----
>
> > From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Robert
> > Gault Sent: Saturday, March 18, 2017 3:34 PM
> > To: CoCoList for Color Computer Enthusiasts
> > Subject: Re: [Coco] error 249
> >
> > Bill,
> >
> > If I understand the above, the answer seems simple but you still
> > need to find what is wrong. If you boot from your Coco floppy drive
> > and can read Coco floppies correctly but get a 249 error when
> > booting from a DW4 disk, then there must be a problem with the
> > rb1773, rbf, or the D# descriptors on the DW4 disk.
> > The idents for rbf and rb1773 on the nos96809l2v030300coco3_dw.dsk
> > I'm using are
> >
> > rb1773
> > size $5A9
> > crc  $A4EB50
> >
> > rbf
> > size $12EE
> > crc  $245E32
> >
> > Regards the many comments about the descriptors, I am using MF2DD,
> > 135 TPI, 80 track, 3.5" disks in my drive#1. I can format it for
> > single or double sides, 35, 40, or 80 tracks per side but TYP=$21.
> >
> > When format starts, it shows TPI=135. If you see something else, use
> > dmode to change typ.


Cheers, Gene Heskett
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