Imaging RX02 disks for simh (was: Re: MU-BASIC V2 and RT-11 V03B distribution disks.)

[Mattis Lind]

2016-03-06 17:56 GMT+01:00 Brian Walenz <thebri at gmail.com>:

> How the heck do you copy an RX02 disk for use in simh?
>
> I've been trying to transfer RX02 images between simh and a real PDP11
> (that has only two RX02's, console, and ethernet).  So far, I've only
> attempted sending an RX02 image from the PDP to simh, but simh fails to
> read it: "?DIR-F-Invalid directory".  Even after adding 13*512 bytes to the
> start for the missing track, I still get invalid directory.
>

I used a regular PC running DOS and then a catweasel card to produce the
DMK file. Then I extracted the raw disk image from the DMK file. The files
produced are 512512 bytes.


>
> My process is to COPY/DEVICE/FILES DY1:/START:0/END:330 DY0:BLOCK1.DAT,
> then FTP that off the PDP, delete the file, and do the remaining two thirds
> of the disk.  Once all are transferred, "cat *DAT > floppy.dsk".
>
> I can transfer RX50 images using the same recipe, though I haven't tried
> sending an RX50 image created on simh back to the PDP.
>
> For what it's worth, I'm having the same problem with Alan Baldwin's TCP/IP
> disk images from http://shop-pdp.net/rthtml/tcpip.htm.  simh can't read
> the
> individual DSK images, but could read the *.PKG with the disks inside, and
> from that, I could (RT-11) MOUNT each disk to a logical device.
>

Did you have problems with my RAW files as well? Which? I tested a few of
them right now and they seemed to work fine.


> b
>
>
> On Thu, Jan 28, 2016 at 11:50 AM, Mattis Lind <mattislind at gmail.com>
> wrote:
>
> > I found some 8 inch floppies with distribution kits for MU-BASIC V2 and
> > RT-11 V03B. I imaged those and put them here
> >
> http://www.datormuseum.se/documentation-software/rx01-and-rx02-floppy-disks
> > if anyone is interested in playing with MU-BASIC. There are both RAW disk
> > images and to be used in SimH and like and also DMK/IMD files.
> >
> > The system that floppies came with is this little (
> >
> http://www.datormuseum.se/computers/digital-equipment-corporation/pdp1103-l
> > )
> > system once used at Scania in Södertälje.
> >
>