12 May
2001
12 May
'01
12:54 p.m.
On May 12, 14:14, ajp166 wrote:
What your havent tried is differnt controllers and
different drives.
I found an old 486 or 386 machine to be less troublesome and also
has fewer preconceived notions of the world. Also I ran dos not
windows(any version)!
I was able to make Venix disks for my Pro many years ago and also
OS278 (also rx50). What I had to do however was to play with the
jumpers on a TEAC FD55GFV (the verseion with many jumpers)
to lock out the 1.2mb mode.
Which leads me to think about a tangentially-related problem -- I recall
that some FDCs insist upon the index mark at the start of the track, and
some don't, but I can't remember which FDCs do/don't (I think WD 37C65 etc
need it but NatSemi DP8473 and WD 1770/1772 don't care).
Also, I recall that some FDCs are more likely to work with 8" drives than
others, and some are more likely to work at single density than others (at
least, some PC ISA controllers are unlikely to work at SD because the
relevant components are not there). I want to set up a PC to use with 8"
drives, including single density, mostly with 22DISK. I have a choice of
386/486/Pentium motherboards, and a selection of ISA controllers, with an
assortment of 765, 8272, 37C65, and 8473 FDCs (I haven't checked, but I'm
pretty sure I have at least one of each). What is most likely to work?
--
Pete Peter Turnbull
Network Manager
University of York