2 Dec
2019
2 Dec
'19
1:05 p.m.
On 12/2/19 11:31 AM, Lamar Owen wrote:
As far as 8-inch drives are concerned, you would need to do exactly
everything you would need to do to hook up an 8-inch drive to a PC,
since the P112 uses a PC SuperIO chip for the FDC, and the floppy
headers have PC pinouts and signal meanings (unlike the CPU280.....).
The dBit FDADAP or similar would be needed to generate TG43 as well as
translate the pinout correctly.? I haven't tried single-density support
on the P112, so don't know if that would work or not, but the SuperIO
chip used should be able to do that.
Well, I have the dBit FDADAP. Works great. I have used them
before on a PC to access PDP-11 disks from PUTR and E11. The
P112 claims to support 8" but I am finding it unlikely. If it
(well, at least the OSes it runs) don't even know it only has
77 tracks I can't see how anyone has done 8" disks on it.
And then I went on to try the GIDE. I can't get FDISK to
create partitions of any kind.
I get
Command (h for help) : n
Partition number (1-8) : 1
First cylinder (1-17455, default 1) : 1
Value out of range
And that is what I get no matter what value I enter.
Why am I getting this sneaking suspicion that none of this
stuff actually works?
bill