On 8/2/17 8:49 AM, Al Kossow via cctalk wrote:
On 8/1/17 10:36 PM, Ulrich Tagge via cctalk wrote:
Looks like I was wrongly under the impression, that there is no way to
reformat, disks to work in an RX02.
There is no way to low-level format disks on a DEC RX01 or RX02. The hardware
doesn't support it in the controller
inside the DEC disk drive. DEC expected you to buy media from them.
You can do it with third-party controllers like Qbus Sigma, DSD, or MTI using
standard Shugart interface disk drives.
Some also support "RX03" double-sided drives.
You could also clone a formatted double-density disks with a flux-level
reader/writer board.
RX02 drives can "reformat" RX01 media to RX02. So if you need RX02
media any soft sector
single sided single density (26 by 128 byte sectored) will do. I use my
S100 CP/M system
to format media to that then the RX01 can be used to init (initialize
directory) or reformat (to DD).
Least the PDP11 can.
Allison
