15 Nov
2005
15 Nov
'05
7:18 p.m.
Subject: PDP-11/73 booting!
From: David Betz <dbetz at xlisper.mv.com>
Date: Tue, 15 Nov 2005 19:56:03 -0500
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
I got my PDP-11/73 booting by connecting an RX02 drive to the system
and using an RT-11 boot floppy. I've convinced myself that the 1.5mb
of memory (two M8059s and a third party card) works and that the
KDJ11-A CPU is working as well as the multi-function boot card
(M8047) and the RX02 drive and controller (M8029).
Unfortunately, I still can't access the RL01 drive. RT-11 sees the
controller card but if I type "DIR RL0:", there is no indication that
Ah thats...
dir DL0:
the RL02 is accessed by the DL: driver. is there a DL.sys on the disk?
the drive is even accessed. The disk seems to spin up
and the ready
light comes on on the drive but I don't seem to be able to access the
drive from RT-11. I've also tried using a scratch pack and typing
"INIT DL0:" but that doesn't work either. Does anyone have any idea
what might cause this kind of behavior? Also, can anyone make me a
bootable RX02 disk with the RL01 diagnostics on it? I can supply the
blank disk?
Assuming the interrupt grant is good (no empty slots between the cpu and
the RLV controller. the cables are good and connected correctly. No fault
light and When the load bitton is in you get spin up and a white load lamp.
It should work.
Allison