3 Dec
2019
3 Dec
'19
4:51 p.m.
Just in case someone else hasn't already responded, the P112 does not use DOS style
fdisk partitioning for a hard disk. It is done in the BIOS image, and then the logical
disks have to be initialized. This is described in the "P112 GIDE
Construction.pdf" document.
I've only used 3.5" floppies, which work fine. You can also attach a PATA CD-ROM
drive and access disks with a program that escapes my memory at the moment.
3 Dec
3 Dec
5:06 p.m.
On 12/3/19 7:51 PM, Craig Ruff via cctech wrote:
Just in case someone else hasn't already
responded, the P112 does not use DOS style fdisk partitioning for a hard disk. It is done
in the BIOS image, and then the logical disks have to be initialized. This is described in
the "P112 GIDE Construction.pdf" document.
I've only used 3.5" floppies, which work fine. You can also attach a PATA CD-ROM
drive and access disks with a program that escapes my memory at the moment.
Along this line I have solved one problem. I mentioned INIT in
RSX180 printing gibberish on the screen when trying to init a
hard disk partition where it had worked on a floppy. Problem
was the size of the partitions. I had tried just making one
partition for the test I learned that FDISK will make partitions
too big for any of the P112 OSes. I now have a hard disk with
5 partitions to play with. On to the next problem.
bill
5:15 p.m.
On Wed, 4 Dec 2019, Bill Gunshannon via cctech wrote:
Along this line I have solved one problem. I
mentioned INIT in
RSX180 printing gibberish on the screen when trying to init a
hard disk partition where it had worked on a floppy. Problem
was the size of the partitions. I had tried just making one
partition for the test I learned that FDISK will make partitions
too big for any of the P112 OSes. I now have a hard disk with
5 partitions to play with. On to the next problem.
Is it a specific size limit?
(something on the order of number of bits for block number?)
5:55 p.m.
On 12/3/19 8:15 PM, Fred Cisin via cctech wrote:
On Wed, 4 Dec 2019, Bill Gunshannon via cctech wrote:
Don't know, but I suspect it's around 32M. I seem to remember
seeing something mentioned somewhere. I just divided a 42M
Seagate into 5 partitions to play with. I may test the limits
eventually but for right now I would just like to get some of
the OSes loaded on the hard disk so I can work with them.
Especially RSX180 as I have some other plans for that one.
bill
Along this line I have solved one problem.? I
mentioned INIT in
RSX180 printing gibberish on the screen when trying to init a
hard disk partition where it had worked on a floppy.? Problem
was the size of the partitions.? I had tried just making one
partition for the test I learned that FDISK will make partitions
too big for any of the P112 OSes.? I now have a hard disk with
5 partitions to play with.? On to the? next problem.
Is it a specific size limit?
(something on the order of number of bits for block number?) 
4 Dec
4 Dec
7:10 a.m.
Hi Bill,
On Wed, Dec 04, 2019 at 01:06:39AM +0000, Bill Gunshannon via cctalk wrote:
On 12/3/19 7:51 PM, Craig Ruff via cctech wrote:
I have a pair of P112 systems, both with GIDE interfaces, booting CP/M from
CF cards successfully. I have not done anything with RSX180 though.
I have been meaning to try and get one reading/writing 8", ideally 3270
format, CP/M floppies, but have not gotten around to working on this yet,
and have no idea how easy or difficult that might be.
When I put these together and was getting them working initially, Terry
Gulczynski was very helpful. See his site at http://www.stack180.com/
You may want to get the latest P112 ROM image and corresponding CF card
image from his site.
Mark
--
Mark G. Thomas <Mark at Misty.com>, KC3DRE
Just in case someone else hasn't already
responded, the P112 does not use DOS style fdisk partitioning for a hard disk. It is done
in the BIOS image, and then the logical disks have to be initialized. This is described in
the "P112 GIDE Construction.pdf" document.
I've only used 3.5" floppies, which work fine. You can also attach a PATA CD-ROM
drive and access disks with a program that escapes my memory at the moment.
Along this line I have solved one problem. I mentioned INIT in
RSX180 printing gibberish on the screen when trying to init a
hard disk partition where it had worked on a floppy. Problem
was the size of the partitions. I had tried just making one
partition for the test I learned that FDISK will make partitions
too big for any of the P112 OSes. I now have a hard disk with
5 partitions to play with. On to the next problem.
bill
1796
days inactive
1796
days old
4 comments
4 participants
participants (4)
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bill.gunshannon＠hotmail.com -
cisin＠xenosoft.com -
cruff＠ruffspot.net -
Mark＠Misty.com