26 Apr
2011
26 Apr
'11
4:42 a.m.
Mark Csele wrote:
Dang! Missed the obvious!
Indeed, looks like the monitor was SYSGENed since there is an ANSwer file on the disk
labelled SJFB.ANS I don't have the system running at the moment but will boot it
again this weekend at latest and check the config but I'm sure that's it.
I suspect the RT-11 copy either has FPU support enabled (which my 11/34 lacks) or one of
the many timers (I have one on the DL-11W but that is it). The LSI system is an 11/73A so
it is "loaded".
I suppose it is time to SYSGEN a new copy - The SYSGEN.COM and a load of assorted files
are already on an MFM drive (as a bootable MSCP device) . I have the SYSGEN manual from
bitsavers so I guess it's time to play "seventy questions".
Anything about the 11/34 I need to be aware-of in terms of options? I want SJ, but
probably don't need SJ timer support. I'm running it from a dual RX-01 drive so
I'll have to keep things to a minimum on this particular system. If I get ambitious
later I can try a new "Qniverter" I picked-up to allow the 11/34 to use the
LSI-11 disk controllers.
If you want a DEC distribution of RT-11, there are a number
available for download at:
http://www.classiccmp.org/PDP-11/RT-11/dists/
Up to V05.03 of RT-11 can be legally run under SIMH.
There is a V04.00 and a V05.03 standalone file of DEC
binary RT-11 distributions.
I would suggest the RT11FB monitor since there an
annoying aspects with RT11SJ. If you have all 256 KB
of memory on the PDP-11/34 or the LSI system, the
RT11XM monitor is even better.
If you need help with the RT11DV10.ISO.zip file to
get an older version of RT-11, please ask. Generally, they
can be separated out using PUTR from John Wilson after
you download the file and UnZip it into 4 RT-11 partitions.
Or you can legally use SIMH to prepare your floppy media.
If you have an 8" floppy on your PC, you can probably prepare
an RX01 right on the PC. You would need a special controller
on the PC to produce an RX02.
I realize that you don't have an RX50 on your PDP-11 systems,
but the HD 5 1/4" floppy drive on your PC can be used to prepare
a bootable floppy for the PDP-11 system. However, be careful
if you ever install an RQDXn controller. The RX50 drive uses
DSDD PC media, NOT the HD PC media even though there
are 80 tracks on the RX50. PUTR can be used to LLF (Low
Level Format) the DSDD media on the PC. On the PDP-11,
even XXDP can't LLF an RX50 (if I remember correctly).
Jerome Fine