[Coco] Need a dir -e but extended.

Richard E. Crislip rcrislip at neo.rr.com
Fri Dec 24 22:36:15 EST 2010


On Friday 24 December 2010 01:20:09 gene heskett wrote:

> On Friday, December 24, 2010 01:17:41 am Richard E. Crislip did opine:

> > On Tuesday 21 December 2010 20:30:04 gene heskett wrote:

> > > On Tuesday, December 21, 2010 08:28:51 pm Richard E. Crislip did opine:

> > > > On Tuesday 21 December 2010 15:12:53 gene heskett wrote:

> > > > > Greetings;

> > > > >

> > > > > I have a bad fd sector that is making dcheck bail out.

> > > > >

> > > > > It is reporting a sector error for a sector that is not even on

> > > > > the disk, so its obvious I have a contaminated FD sector, but a

> > > > > few hours of doing dir -e's here and there looking for a bogus

> > > > > list, I have not found it yet.

> > > > >

> > > > > A decade or more back, we had a disk or file utility that worked

> > > > > something like a dir -e does now, but where a dir -e only gets the

> > > > > location of that filenames fd sector and reports that as the files

> > > > > address, it read and decoded the rest of that sector to show where

> > > > > each piece of the file was located on the disk, and also the size

> > > > > of the file from that FD, this utility returned a complete list

> > > > > of all the allocated sectors and the size of each allocation. So

> > > > > it showed the offset and size of every segment of a files fd

> > > > > sector. But I don't recall the name of the thing and nothing I

> > > > > see on that Seagate's various cmds dirs (there are several) rings

> > > > > even a teeny little bell.

> > > > >

> > > > > Can someone refresh my memory? Please?

> > > >

> > > > Hi Gene,

> > > >

> > > > The last time I did anything like that was with a RSDOS program

> > > > called CoCoZap. It displayed a graphical picture of what it found

> > > > on the disk and, after studying the patterns one could discern the

> > > > bad areas and make changes that would allow the dist to at least be

> > > > read. I do remember trying iton an OS-9 disk, and for sure I did

> > > > not try it on an Nitros-9 disk 8-).

> > > >

> > > > Richard

> > >

> > > This is os9/nitros9, and there is no resemblance between the file

> > > structures on the disk.

> >

> > You're probably correct, but I remember it as being a raw data reader,

> > didn't care about filesystems.

> >

> > Richard

>

> It may not Richard, but I have almost zero knowledge of the rsdos file

> system while I am long term conversant with os9 and its filesystem. So ded

> is my tool of choice.

>

> BTW, Merry Christmas to you and yours.


Merry Christmas to you and your wife too.

BTW, the ole Amy2500 is still occupying a place on my table. Wish I had more
time to play with it... but that would probaly mean that I am jobless, so I'll
take it back 8-).



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