21 Apr
2000
21 Apr
'00
2:32 p.m.
"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote:
On Fri, 21 Apr 2000, Tony Duell wrote:
Also, by not getting error messages, that it's finding the sector numbers
that it's looking for, therefore it has the expected number of bytes per
sector and range of sector numbers (do the numbers start at 0, 1, 20, ...)
I just checked, and the NEC 8" CP/M diskettes that i"ve seen have 256
bytes per sector; but not the MS-DOS ones, therefore I retract my previous
suggestion that these might be MS-DOS diskettes.
Hi Fred
I take back what I said earlier. You are correct, the fact
that it did respond with "NO FILE" indicates that the
surface was being read. I haven't fiddle enough with
CP/M86 but I'd think that the post about USERs might have
some relevance. I don't think is is a MS-DOS disk
either. The FAT and such take up a lot of space and
surely wouldn't return "NO FILE" if CP/M tried to read it.
I think the first step is to try the STAT command as was
suggested by someone else. That will at least tell you
if space was reserved for any data by the CP/M OS.
It is still possible that someone used the disk to
write directly to sectors. There is a program called
VIEW or something that allows direct sector viewing.
That might be a good thing to try.
Dwight
PS Sellam Ismail doesn't subscribe to this group
so could people responding to his questions please CC
him at:
dastar(a)siconic.com
I have forwarded all of the earlier post so far.
DIR but
they all come back with "NO FILE". Now of course this means
This
message is also telling you a couple of good (?) things. Firstly
that the drive/controller is managing to read valid sectors off the disk
(so the drive is working, the heads are clean enough to read something,
etc). Otherwise you'd be getting the well-known BDOS errors.