Re: Pdp11/05 boot media

[Eric Smith via cctalk]

On Sat, Apr 25, 2020 at 5:43 PM Jay Jaeger via cctalk 
wrote:

> RX01's are, IIRC, just standard IBM 3740 format, yes?
>

Yes.

The RX02 double density format is the one that's incompatible with
everything else.

Re: Pdp11/05 boot media

[Jay Jaeger via cctalk]

On 4/21/2020 9:34 AM, Chris Zach via cctalk wrote:
> Or someone could lend you some floppies. I have an RX02 drive here I am
> putting back together, right now I have it switched to emulate an RX01
> with my RXV11 controller. I'll look through my floppies and see if I
> have some RX01 disks I can load up with RT11.
> 
> C
> 
> On 4/21/2020 10:15 AM, Chuck Guzis via cctalk wrote:
>> On 4/21/20 5:02 AM, Bill Degnan via cctalk wrote:
>>> Using an older version OS and PDPGUI send a tape image into RAM
>>> through the
>>> serial port.  Helps if you have a m9312 ROM board.  You can make rx01
>>> disks
>>> using dunfield's disk utility (right?) I believe but I never actually
>>> did
>>
>> Yes, that's assuming you have a PC with an FDC capable of
>> writing/formatting FM floppies.
>>
>> --Chuck
>>

Another option would be to use TU58em (a real serial port makes life
easier), and boot RT11 on the 11/05 with an image created under SimH.  I
did that recently with an S100 PDP-11 board from s100computers.com and
got RT11 and diagnostics to run.  (Long story, that.)

Then you could use that to set up an RT11 floppy on the 11/05.

RX01's are, IIRC, just standard IBM 3740 format, yes?

JRJ

Re: Pdp11/05 boot media

[Malcolm Macleod via cctalk]

> Hi everybody

> 

> I'm the proud owner of a PDP11/05 system with a couple of 8" floppy
drives.  I believe they are likely to be RX01s.

> 

> Does anybody on the list have some boot media that they could provide.  I
understand that the controller can't format

> the disks so I'm in a frustrating state where I don't know where to start.

> 

> Doug Jackson

> 

> Canberra  Australia.

 

Hi Doug,

 

I'm in Melbourne and have several working PDP-11's.  I can send you a couple
of bootable RT11 8" disks.  I'll need to know whether they are RX01s or
RX02s though.  Perhaps send me an email offline and we can take it from
there?

 

Malcolm

www.avitech.com.au  

 

Re: Pdp11/05 boot media

[Torfinn Ingolfsen via cctalk]

On Tue, Apr 21, 2020 at 4:32 PM Chuck Guzis via cctalk
 wrote:
>
> Yes, that's assuming you have a PC with an FDC capable of
> writing/formatting FM floppies.
>
> --Chuck

Since nobody has mentioned it in this thread already Dave Dunfield's
TestFDC is good for finding out if the FDC in a PC is capable.
Downloadable here: http://www.classiccmp.org/dunfield/img/index.htm
(Chuck knows this of course, but the OP might not)

HTH, HAND, stay safe.
-- 
Regards,
Torfinn Ingolfsen

Re: Pdp11/05 boot media

[Chris Zach via cctalk]

Or someone could lend you some floppies. I have an RX02 drive here I am 
putting back together, right now I have it switched to emulate an RX01 
with my RXV11 controller. I'll look through my floppies and see if I 
have some RX01 disks I can load up with RT11.


C

On 4/21/2020 10:15 AM, Chuck Guzis via cctalk wrote:

On 4/21/20 5:02 AM, Bill Degnan via cctalk wrote:

Using an older version OS and PDPGUI send a tape image into RAM through the
serial port.  Helps if you have a m9312 ROM board.  You can make rx01 disks
using dunfield's disk utility (right?) I believe but I never actually did


Yes, that's assuming you have a PC with an FDC capable of
writing/formatting FM floppies.

--Chuck

Re: Pdp11/05 boot media

[Chuck Guzis via cctalk]

On 4/21/20 5:02 AM, Bill Degnan via cctalk wrote:
> Using an older version OS and PDPGUI send a tape image into RAM through the
> serial port.  Helps if you have a m9312 ROM board.  You can make rx01 disks
> using dunfield's disk utility (right?) I believe but I never actually did

Yes, that's assuming you have a PC with an FDC capable of
writing/formatting FM floppies.

--Chuck

Re: Pdp11/05 boot media

[Bill Degnan via cctalk]

Using an older version OS and PDPGUI send a tape image into RAM through the
serial port.  Helps if you have a m9312 ROM board.  You can make rx01 disks
using dunfield's disk utility (right?) I believe but I never actually did
this myself.

Bill

On Tue, Apr 21, 2020, 5:35 AM Doug Jackson via cctalk 
wrote:

> Hi everybody
>
> I'm the proud owner of a PDP11/05 system with a couple of 8" floppy
> drives.  I believe they are likely to be RX01s.
>
> Does anybody on the list have some boot media that they could provide.  I
> understand that the controller can't format the disks so I'm in a
> frustrating state where I don't know where to start.
>
> Doug Jackson
>
> Canberra  Australia.
>

Pdp11/05 boot media

[Doug Jackson via cctalk]

Hi everybody

I'm the proud owner of a PDP11/05 system with a couple of 8" floppy
drives.  I believe they are likely to be RX01s.

Does anybody on the list have some boot media that they could provide.  I
understand that the controller can't format the disks so I'm in a
frustrating state where I don't know where to start.

Doug Jackson

Canberra  Australia.