4 May
2017
4 May
'17
10:17 p.m.
On Thu, May 4, 2017 at 7:58 PM, Fred Cisin via cctalk
<cctalk at classiccmp.org> wrote:
On Thu, 4 May 2017, Warner Losh via cctalk wrote:
True. I have two I bought back in the day for the Rainbow that I've
not been able to get to work on my PC or kyroflux. They are TEAC
55FRs...
The old fashioned way: copy the files on the rainbow to the hard
drive, kermit to my unix box.
I have a kryoflux, but it's being nothing but frustrating to me since
I don't know if I have a known good floppy it supports or not. I mean
I have two 5.25 1.2M floppy drives, just have no way of knowing if
they are good or not and am loathe to try to buy another one... So
I'm reading them the only way I know how: via an RX-50 on my
Rainbow...
Rainbow disks are readable on a PC with 1.2M. But, it's sometimes a little
easier if you use a 720K 5.25" drive. 96tpi, 300 RPM with 250K data transfer rate
(or, with some 1.2M drives: 360RPM with 300K data transfer rate, but NOT
double stepping as would be done for 360K disk at that data transfer rate)
Correct. I've done it before years ago on FreeBSD, I thought with the
TEAC 55FRs, but it may have been with the 55GRF that I have...
There are commercial programs available for the PC to
read/write Rainbow,
and even programs for the Rainbow to read/write PC 160K/180K disks.
(for writing PC on the Rainbow, start with a virgin disk, and format it on
the Rainbow in PC format, or in a PC using a 1.2M drive in 190K format -same
track width problems as rewriting 360K disks in 1.2M drive)
Yes. And you could use the IMPDRIVE.SYS that I wrote and put a 720k
3.5" drive into the Rainbow and do the transfer that way too, since it
allowed you to read/write standard IBM disks. Trouble with that is
that my newer computers don't even have a floppy port and the older
ones in the bone yard are broken... I have 40 or 50 backup disks that
I should read into the my unix boxes sometimes.
Warner