[Coco] Need a dir -e but extended.

gene heskett gheskett at wdtv.com
Tue Dec 21 20:30:04 EST 2010


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.

--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
There's only one everything.



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