[Coco] SuperIDE backup/restore

Mon Aug 5 11:15:24 EDT 2013

I made some advances, but there is still a bigger mystery.

I have two cards: the "good" (256MB) and the "evil" (512MB)

I wrote every sector of the good card with sequential data ("DISK# TRACK#
SECTOR#")
Then I verified reading with DSKI$ every sector of the disk. All OK.

I "dd"ed it to a file and "dd"ed it back to the "evil" card. (I used the
block size as 512. if=xxx.img of=/dev/disk3 bs=512)
Plugged it on the coco and verified every sector. All OK. So the backup was
perfect!

Then I DDed the Luis' card image on the evil card with the same command. I
got corrupted disks. BTW, the image works on the "good" card, so it is not
the image's fault (or my DD command).

So, it is still a mystery. Maybe some bug on my test program ... got to
work on this.

I'm thinking about writing a program that DSKI$ the disk and write it on
the serial line. So I can compare what the COCO is reading from the evil
disk.

Ed,

Did you got any news?

On Tue, Jul 30, 2013 at 12:19 AM, Ed Orbea <ed.orbea at gmail.com> wrote:

> In regards to discussions regarding this thread
> 1) all the cf cards indent to Mark were 256mg cards
> 2) 3 were Sandisk and 1(the 1 that did not have enough space was not a
> Sandisk)
> 3) the 3 Sandisk cards that Mark graciously imaged for me did not work in
> my sIDE cart.
> 4) when I install them and power on the system (the flash memory bank is
> still set where it was when Mark shipped it) the system hangs
> 5) when I do nothing other than to power off the system, and insert the
> cloud9 dist cf card, everything works.
>
> So I do not think it is the sIDE cart
> I do think it is a CF card problem
> What I want to do, then I get back from work-related travel (I'm in
> Florida this week) is to wipe one of the new cf cards. Then build a cf
> 'from scratch' using the documentation HDB-DOS, SuperIDE, READ.MEfiles/documentation. What I will not do is to burn the EPROM file Thant is
> created by the wizard, I'll just loadmasters and exec.
>
> If that works, I'll attempt to backup the new cf image to an identical cf
> card.
>
>
> Sent from my iPad
>
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